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Process and plant for the production of methanol with isothermal catalytic beds

Tue, 26 May 2015 08:00:00 EDT

A process for the synthesis of methanol, comprising the steps of reforming a hydrocarbon source obtaining a make-up gas feed (101), feeding said make up gas to a synthesis loop (L), converting said make up gas to methanol (108) in a substantially isothermal catalytic environment, wherein said catalytic environment comprises a plurality of isothermal catalytic beds (11, 12, 21) preferably arranged in series, and at least a portion of make-up gas (101) is mixed with recycle gas (112) from the loop (L), obtaining a gaseous mixture of fresh gas and recycle gas, and at least a portion of said gaseous mixture is directed between two consecutive catalytic beds acting as a quench gas. A related plant is also disclosed.



Method and plant for the production of methanol

Tue, 26 May 2015 08:00:00 EDT

A method for producing methanol from a synthesis gas containing hydrogen and carbon oxides with a high content of inert components includes passing the synthesis gas through a synthesis reactor so as to catalytically convert a part of the carbon oxides to methanol. The methanol is separated from the obtained mixture from the reactor. The mixture liberated from methanol is separated into a cycle stream and a purge stream. The cycle stream is recirculated so as to form a synthesis circle and combined with a fresh gas stream including hydrogen and carbon oxides before being charged into the synthesis reactor. The purge stream is supplied to a secondary reactor so as to catalytically convert a further part of the hydrogen and carbon oxides to methanol. Further methanol is separated the obtained mixture including synthesis gas, inert components and methanol vapor.



System and method for renewable resource production, for example, hydrogen production by microbial electrolysis, fermentation, and/or photosynthesis

Tue, 26 May 2015 08:00:00 EDT

System and method for sustainable economic development which includes hydrogen extracted from substances, for example, sea water, industrial waste water, agricultural waste water, sewage, and landfill waste water. The hydrogen extraction is accomplished by thermal dissociation, electrical dissociation, optical dissociation, and magnetic dissociation. The hydrogen extraction further includes operation in conjunction with energy addition from renewable resources, for example, solar, wind, moving water, geothermal, or biomass resources.



Slurry bubble column reactor

Tue, 26 May 2015 08:00:00 EDT

A slurry bubble column reactor with a gas distribution arrangement comprising an upper sparger, a lower sparger, and an open-ended tube. Gas from the lower sparger enters the tube and lowers the density of slurry in the tube. The difference in slurry density causes the slurry in the tube to rise, causing slurry outside the tube to move down, maintaining circulation and flushing catalyst from the vessel wall.



Fischer-tropsch process

Tue, 12 May 2015 08:00:00 EDT

The present invention is directed to a process for the production of hydrocarbon product from two different hydrocarbonaceous feedstocks comprising the steps of preparing a feed syngas having a hydrogen/carbon monoxide [H2/CO] molar feed ratio suitable for Fischer-Tropsch synthesis, wherein the feed syngas is prepared by combining a first syngas having a H2/CO molar ratio below the molar feed ratio and a second syngas having a H2/CO molar ratio above the molar feed ratio; the first syngas is prepared from a liquid hydrocarbon comprising feedstock as the sole source of carbon in a first syngas manufacturing process comprising a non-catalytic partial oxidation step; the second syngas is prepared from a methane comprising feedstock as the sole source of carbon in a second syngas manufacturing process comprising a heat exchange reforming step and an auto-thermal reforming step; and the first and second syngas manufacturing processes are operated in parallel.



System, process and reactor for conducting a synthesis gas conversion reaction

Tue, 05 May 2015 08:00:00 EDT

A synthesis gas conversion process and system are disclosed. Fresh syngas from a methane reformer is used as a sweep zone gas feed which is caused to flow across a water permselective membrane in a membrane reactor. The water permselective membrane is adjacent a synthesis gas conversion reaction zone in which synthesis gas is contacted with a catalyst and converted to effluent including water. Water is removed from the reaction zone through the membrane and passes out of the reactor with the sweep zone gas. The water is then removed from the sweep zone gas forming a modified gas feed which is fed to the reaction zone. The modified gas feed has a preferred H2/CO ratio to feed into the reaction zone.



Fischer-Tropsch synthesis using microchannel technology and novel catalyst and microchannel reactor

Tue, 05 May 2015 08:00:00 EDT

Disclosed is a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant composition through a microchannel reactor in contact with a Fischer-Tropsch catalyst to convert the reactant composition to the product, the microchannel reactor comprising a plurality of process microchannels containing the catalyst; transferring heat from the process microchannels to a heat exchanger; and removing the product from the microchannel reactor; the process producing at least about 0.5 gram of aliphatic hydrocarbon having at least about 5 carbon atoms per gram of catalyst per hour; the selectivity to methane in the product being less than about 25%. Also disclosed is a supported catalyst comprising Co, and a microchannel reactor comprising at least one process microchannel and at least one adjacent heat exchange zone.



Hybrid fischer-tropsch catalysts and processes for use thereof

Tue, 05 May 2015 08:00:00 EDT

Disclosed are hybrid Fischer-Tropsch catalysts containing cobalt deposited on hybrid supports. The hybrid supports contain an acidic zeolite component and a silica-containing material. It has been found that the use of the hybrid Fischer-Tropsch catalysts in synthesis gas conversion reactions results in high C5+ productivity, high CO conversion rates and low olefin formation.



Hydromethanation of a carbonaceous feedstock

Tue, 21 Apr 2015 08:00:00 EDT

The present invention relates generally to processes for hydromethanating a carbonaceous feedstock in a hydromethanation reactor to a methane product stream and a char by-product, and more specifically to removal of the char by-product from the hydromethanation reactor.



Methanation of a syngas

Tue, 21 Apr 2015 08:00:00 EDT

Systems and methods for producing a synthetic natural gas are provided. A syngas can be separated into a first syngas, a second syngas, and a third syngas. The first syngas can be methanated to produce a first effluent. The first effluent can be mixed with the second syngas to produce a first mixed effluent. The first mixed effluent can be methanated to produce a second effluent. The second mixed effluent can be methanated to produce a third effluent. The third effluent can be cooled to produce a first cooled effluent. The first cooled effluent can be cooled to produce a synthetic natural gas.



Process and apparatus for the production of synthesis gas

Tue, 21 Apr 2015 08:00:00 EDT

Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.



Fischer-Tropsch process

Tue, 14 Apr 2015 08:00:00 EDT

The disclosed invention relates to a process for conducting a Fischer-Tropsch reaction, comprising flowing a reactant mixture comprising fresh synthesis gas and tail gas in a microchannel reactor in contact with a catalyst to form at least one hydrocarbon product, the catalyst being derived from a catalyst precursor comprising cobalt and a surface modified catalyst support.



Fischer tropsch method for offshore production risers for oil and gas wells

Tue, 14 Apr 2015 08:00:00 EDT

A method and an apparatus is disclosed that uses a gas lift tubing arrangement to produce synthetic hydrocarbon related products. Using the Fischer Tropsch process as an example, the tubing is packed with a suitable catalyst and then hydrogen and carbon monoxide are injected into the top of the tubing in a fashion similar to a gas lift process. As the gases travel past the catalyst, synthetic hydrocarbons are formed and heat is rejected. The synthetic hydrocarbons and water flow out of the bottom of the tubing and travel up the annulus to the surface. In some embodiments, this process is carried out in a producing well or a in producing riser. In a producing well or a producing riser, the production from the well which flows up the annulus cools the synthetic hydrocarbon derived products. In additional and alternate embodiments, this process can be used in non-flowing wells.



Fischer tropsch method for offshore production risers or oil and gas wells

Tue, 14 Apr 2015 08:00:00 EDT

A method and an apparatus is disclosed that uses a gas lift tubing arrangement to produce synthetic hydrocarbon related products. Using the Fischer Tropsch process as an example, the tubing is packed with a suitable catalyst and then hydrogen and carbon monoxide are injected into the top of the tubing in a fashion similar to a gas lift process. As the gases travel past the catalyst, synthetic hydrocarbons are formed and heat is rejected. The synthetic hydrocarbons and water flow out of the bottom of the tubing and travel up the annulus to the surface. In some embodiments, this process is carried out in a producing well or a in producing riser. In a producing well or a producing riser, the production from the well which flows up the annulus cools the synthetic hydrocarbon derived products. In additional and alternate embodiments, this process can be used in non-flowing wells.



Stacked catalyst bed for Fischer-Tropsch

Tue, 14 Apr 2015 08:00:00 EDT

The invention pertains to a reactor tube comprising a fixed bed of Fischer-Tropsch catalyst particles, wherein the catalyst particles in 5%-40% of the fixed bed volume at the upstream end have an average outer surface to volume ratio (S/V) of between 3.0 to 4.5 mm-1, and the remaining catalyst particles have an average S/V of between 4.5 to 8.0 mm-1, and wherein the difference between the average S/V of the particles at the upstream end and the remaining fixed bed volume is at least 0.5 mm-1. Additionally the fixed bed volume at the upstream end shows a full-bed apparent catalytic activity per volume unit lower than the full-bed apparent catalytic activity per volume unit in the remaining fixed bed volume and/or the weight of catalytically active metal per weight unit at the upstream end is more than 70% lower than in the remaining fixed bed volume.



Method for producing methane by catalytic gasification of coal and device thereof

Tue, 07 Apr 2015 08:00:00 EDT

The invention relates to a gasifier comprising a syngas generation section, a coal methanation section and a syngas methanation section in the order from bottom to top. The invention also relates to a process for preparing methane by catalytically gasifying coal using such a gasifier. Optionally, the gasifier is additionally provided with a coal pyrolysis section above the syngas methanation section.



Process for producing synthetic hydrocarbons from carbonaceous materials

Tue, 07 Apr 2015 08:00:00 EDT

A method for producing synthetic hydrocarbons from at least one carbonaceous material is provided. The method includes evaluating the resources of the carbonaceous material available on a determined territory; determining from the resources a total production capacity of synthetic hydrocarbons; determining from the total production capacity, a number of elementary production units required for obtaining the total production capacity, each elementary production unit having an elementary production capacity between a 100 and a 1,000 barrels a day of synthetic hydrocarbons; building the number of elementary production units on the territory; transporting the carbonaceous material from the territory as far as the elementary production units; producing the synthetic hydrocarbons in the elementary production units from the transported carbonaceous material.



Carbon-supported catalysts for production of higher alcohols from syngas

Tue, 07 Apr 2015 08:00:00 EDT

Catalyst compositions comprising molybdenum, sulfur and an alkali metal ion supported on a nanofibrous, mesoporous carbon molecular sieve are useful for converting syngas to higher alcohols. The compositions are produced via impregnation and may enhance selectivity to ethanol in particular.



Method for producing hydrocarbon oil, fischer-tropsch synthesis reaction device, and hydrocarbon oil production system

Tue, 31 Mar 2015 08:00:00 EDT

The present invention provides a process for producing a hydrocarbon oil by performing a Fischer-Tropsch synthesis reaction using a reactor for a Fischer-Tropsch synthesis including a reaction apparatus having a slurry containing catalyst particles and a gaseous phase located above the slurry to obtain a hydrocarbon oil, wherein the Fischer-Tropsch reaction is performed while controlling a temperature of the slurry so that a difference T2−T1 between the average temperature T1 of the slurry and a temperature T2 at the liquid level of the slurry in contact with the gaseous phase is 5 to 30° C.



Process for improving the hydrogen content of a synthesis gas

Tue, 24 Mar 2015 08:00:00 EDT

A process for improving the hydrogen content of a synthesis gas stream to a synthesis loop, comprising the steps of: (a) removing a purge stream comprising hydrogen and hydrocarbons from a synthesis loop; (b) separating hydrogen from the purge stream; (c) passing the purge stream to a reformer and reacting with steam and oxygen to produce a stream comprising hydrogen and carbon monoxide; (d) subjecting the reformed reaction product stream to a shift reaction to produce a stream comprising carbon dioxide and hydrogen; (e) subjecting the product stream from the shift reaction to separation to separate hydrogen from carbon dioxide; (f) supplying the separated hydrogen to the synthesis loop; and (g) removing the carbon dioxide.



Conversion of carbon dioxide to methanol using bi-reforming of methane or natural gas

Tue, 17 Mar 2015 08:00:00 EDT

The invention provides for \ a method of forming methanol by combining a mixture of methane, water and carbon dioxide under reaction conditions sufficient to form a mixture of hydrogen and carbon monoxide. Hydrogen and carbon monoxide are reacted under conditions sufficient to form methanol. The molar ratio of hydrogen to carbon monoxide is at least two moles of hydrogen to one mole of carbon monoxide and the overall molar ratio between methane, water and carbon dioxide is about 3:2:1. Methane, carbon dioxide and water are bi-reformed over a catalyst. The catalyst includes a single metal, a metal oxide, a mixed catalyst of a metal and a metal oxide or a mixed catalyst of at least two metal oxides.



Bulk sulfidic mixed metal catalyst and methods for its manufacture and use in converting syngas to alcohol

Tue, 17 Mar 2015 08:00:00 EDT

A process for sulfiding a cobalt-molybdenum bulk catalyst precursor to form a bulk sulfided alcohol synthesis catalyst. The process steps include contacting an oxidic bulk cobalt-molybdenum catalyst precursor with an amount of a sulfur-containing compound which is in the range of about 1 to about 10 moles of sulfur per mole of metals, at one or more temperatures at or in excess of about 300° C. in a medium which is substantially devoid of added hydrogen, so as to form a sulfided bulk cobalt-molybdenum catalyst product. Also described are processes for forming the catalyst precursor, processes for producing an alcohol using the catalyst product and the catalyst product itself.



Apparatus and process for three-phase reaction

Tue, 17 Mar 2015 08:00:00 EDT

A system and process for removing catalyst fines from a gas stream overhead the slurry in a Fischer-Tropsch slurry bubble column reactor. The gas phase at the top of the slurry bubble column reactor containing small amounts of entrained liquid and catalyst particles. The unreacted gases are passed through a demister, which removes larger droplets and catalyst particles. Smaller droplets and catalyst fines are conveyed to a secondary gas cleaner, such as a cyclone, whereby substantially all remaining particles are removed from the gas phase. A particle-containing liquid produced in the secondary gas cleaner can be further subjected to a filtrate cleaning unit to filter out fine catalyst particles and produce a substantially particle-free liquid product stream and a slurry stream of liquid product containing catalyst particles.



Stacked catalyst bed for Fischer-Tropsch

Tue, 17 Mar 2015 08:00:00 EDT

The present invention pertains to a reactor tube comprising a fixed bed of Fischer-Tropsch catalyst particles, wherein the catalyst particles in 5% to 40% of the fixed bed volume at the upstream end have an average outer surface to volume ratio (S/V) in the range of between 3.0 to 4.5 mm−1, and the catalyst particles in the remaining fixed bed volume have an average outer surface to volume ratio (S/V) in the range of between 4.5 to 8.0 mm−1, and wherein the difference between the average S/V of the particles at the upstream end and the average S/V of the particles in the remaining fixed bed volume is at least 0.5 mm−1.



Production of hydrocarbons

Tue, 10 Mar 2015 08:00:00 EDT

A process for producing hydrocarbons and, optionally, oxygenates of hydrocarbons is provided. A synthesis gas comprises hydrogen, carbon monoxide and N-containing contaminants selected from the group consisting of HCN, NH3, NO, RXNH3-X, R1—CN and heterocyclic compounds containing at least one nitrogen atom as a ring member of a heterocyclic ring of the heterocyclic compound. The N-containing contaminants constitute, in total, at least 100 vppb but less than 1 000 000 vppb of the synthesis gas. The synthesis gas is contacted at an elevated temperature and an elevated pressure, with a particulate supported Fischer-Tropsch synthesis catalyst. The catalyst comprises a catalyst support, Co in catalytically active form supported on the catalyst support, and a dopant selected from the group consisting of platinum (Pt), palladium (Pd), ruthenium (Ru) and/or rhenium (Re). The dopant level is expressed by a formula. Hydrocarbons and, optionally, oxygenates of hydrocarbons are obtained.



Synthesis gas methanation process and apparatus

Tue, 10 Mar 2015 08:00:00 EDT

In a synthesis gas methanation process, at least one first fraction of synthesis gas to treat is fed, together with steam, to a shift reactor where a shift reaction occurs; the gas flow produced in the shift reactor is then fed to a first methanation reactor where a methanation reaction occurs and then to further second methanation reactors in series, where further methanation reactions, performed with the addition of fresh synthesis gas which has not been subjected to the shift reaction.



Method for upgrading hydrocarbon compounds and a hydrocarbon compound distillation separation apparatus

Tue, 10 Mar 2015 08:00:00 EDT

There is provided a method for upgrading hydrocarbon compounds, in which hydrocarbon compounds synthesized in a Fisher-Tropsch synthesis reaction are fractionally distillated, and the fractionally distillated hydrocarbon compounds are hydrotreated to produce liquid fuel products. The method includes fractionally distilling heavy hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a liquid into a first middle distillate and a wax fraction, and fractionally distilling light hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a gas into a second middle distillate and a light gas fraction.



Process for the production of substitute natural gas

Tue, 03 Mar 2015 08:00:00 EST

In a process for the production of substitute natural gas, a feed gas is provided to a first and/or second and/or subsequent bulk methanator. The feed gas is subjected to methanation in the presence of a suitable catalyst. An at least partially reacted stream from the first bulk methanator is removed and supplied to the second and/or subsequent bulk methanator where it is subjected to further methanation. A product stream from the final bulk methanator is passed to a trim methanator train where it is subjected to further methanation. A recycle stream is removed downstream of the first, second or subsequent bulk methanator, and, in any order, passed through a compressor, subjected to cooling and then supplied to a trim and/or recycle methanator for further methanation before being recycled to the first and/or second and/or subsequent methanator.



Method, system and equipment for gasification-liquefaction disposal of municipal solid waste

Tue, 03 Mar 2015 08:00:00 EST

A gasification-liquefaction disposal method, system and equipment for MSW are disclosed. The method involves the MSW pretreatment of dehydrating and separating, thus reducing water and inorganic substance content of the waste. Then, the MSW is introduced into a plasma gasifier (23) by a carbon dioxide air-sealed feeding device (13) and gasified therein to obtain hydrogen-rich syngas. The hydrogen-rich syngas is then cooled, deacidified, dedusted and separated to obtain carbon dioxide. Then, the hydrogen-rich syngas is catalyzed to produce methanol product in a methanol synthesis reactor (52). The separated carbon dioxide is sent back to a carbonation reaction chamber (2007) of a gasification system to perform carbonation reaction with calcium oxide, thereby releasing heat to provide assistant heat energy for gasification and avoiding greenhouse gas from being discharged into environment. Exhaust gas is returned to the plasma gasifier (23) for remelting treatment, thus forming a closed-loop circulation production system and realizing the disposal of the MSW with zero discharge and no pollution, thereby avoiding dioxin pollution and converting the MSW to chemical raw materials and fuel needed by mankind. The method, system and equipment are suitable for harmless and recycling disposal of MSW, industrial high polymer waste, composting waste and waste in waste sorting sites.



Fuel processing system and related methods

Tue, 03 Mar 2015 08:00:00 EST

A fuel processing system for converting a logistical fuel and air into a liquid product comprising methanol. One such system comprises a fuel injection system configured to combine a logistical fuel and ambient air to produce a logistical fuel and air mixture, a synthesis gas production system configured to convert the logistical fuel and air mixture to synthesis gas, and a methanol synthesis system configured to convert the synthesis gas to a crude methanol liquid. Related methods are additionally disclosed.



Preparation of iron/carbon nanocomposite catalysts for Fischer-Tropsch synthesis reaction and related production of liquid hydrocarbons

Tue, 24 Feb 2015 08:00:00 EST

Iron/carbon (Fe/C) nanocomposite catalysts are prepared for Fischer-Tropsch synthesis reaction. A preparation method includes steps of mixing iron hydrate salts and a mesoporous carbon support to form a mixture, infiltrating the iron hydrate salts into the carbon support through melt infiltration of the mixture near a melting point of the iron hydrate salts, forming iron-carbide particles infiltrated into the carbon support through calcination of the iron hydrate salts infiltrated into the carbon support under a first atmosphere, and vacuum-drying the iron-carbide particles after passivation using ethanol. Using such catalysts, liquid hydrocarbons are produced.



Mixed oxide based catalyst for the conversion of carbon dioxide to syngas and method of preparation and use

Tue, 24 Feb 2015 08:00:00 EST

The invention relates to a catalyst and process for making syngas mixtures including hydrogen, carbon monoxide and carbon dioxide. The process comprises contacting a gaseous feed mixture containing carbon dioxide and hydrogen with the catalyst, where the catalyst comprises Mn oxide and an auxiliary metal oxide selected from the group consisting of La, Ca, K, W, Cu, Al and mixtures or combinations thereof. The process enables hydrogenation of carbon dioxide into carbon monoxide with high selectivity, and good catalyst stability over time and under variations in processing conditions. The process can be applied separately, but can also be integrated with other processes, both up-stream and/or down-stream including methane reforming or other synthesis processes for making products like alkanes, aldehydes, or alcohols.



Integrated bioprocessing for fuel production

Tue, 24 Feb 2015 08:00:00 EST

Systems and methods are provided for enhancing the integration of processes for recovering products from algae-derived biomass. The enhanced process integration allows for increased use of input streams and other reagents that are derived from renewable sources. This increases the overall renewable character of the products extracted from the algae-derived biomass. The process integration can include exchange of input streams or energy between an algae processing system and a system for processing non-algal biomass. One example of improving process integration is using oxygenates that are generated in a renewable manner as a reagent for enhancing the algae processing system.



Methanol synthesis process

Tue, 17 Feb 2015 08:00:00 EST

A methanol synthesis process includes reacting a process gas containing hydrogen, carbon dioxide and carbon monoxide over a catalyst including shaped units formed from a reduced and passivated catalyst powder the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, to form a product gas, and condensing methanol, water and oxygenate by-products therefrom, wherein the total oxygenate by-product level in the condensate is below 500 ppm.



Method for processing fischer-tropsch off-gas

Tue, 17 Feb 2015 08:00:00 EST

A method for producing a gas comprising at least 80 vol % carbon monoxide from a Fischer-Tropsch off-gas comprises: (1) feeding Fischer-Tropsch off-gas through a column comprising an adsorbent bed at high pressure and discharging effluent; (2) reducing the pressure in the column and the bed slightly; (3) rinsing the column and the adsorbent bed with methane or a mixture of methane and carbon dioxide; (4) reducing the pressure of the column and adsorbent bed to a low pressure; (5) rinsing the column and adsorbent bed with a mixture of hydrogen and nitrogen; (6) pressurizing the column and adsorbent bed to a high pressure using a mixture of hydrogen and nitrogen. The product stream obtained in step (3) comprising at least 80 vol % carbon monoxide can be sent as feed to a Fischer-Tropsch reaction. In an embodiment, a gas comprising at least 80 vol % hydrogen is also produced.



Apparatus and process for treating offshore natural gas

Tue, 17 Feb 2015 08:00:00 EST

A process for treating offshore natural gas includes processing the natural gas on an off-shore processing facility by, (i) liquefying and fractionating the natural gas to generate a liquefied natural gas stream and a higher hydrocarbon stream, (ii) vaporizing at least a portion of the higher hydrocarbon stream, (iii) passing the vaporized higher hydrocarbon stream and steam over a steam reforming catalyst to generate a reformed gas mixture comprising methane, steam, carbon oxides and hydrogen, (iv) passing the reformed gas mixture over a methanation catalyst to generate a methane rich gas, and (v) combining the methane-rich gas with the natural gas prior to the liquefaction step.



Fischer-Tropsch catalysts

Tue, 10 Feb 2015 08:00:00 EST

A method of producing an alumina-supported catalyst for use in a Fischer-Tropsch synthesis reaction, which comprises: calcining an initial γ-alumina support material at a temperature of at least 550° C. to produce a modified alumina support material; impregnating the modified alumina support material with a source cobalt; calcining the impregnated support material at a temperature of 700° C. to 1200° C., and activating the catalyst.



Process for increasing the carbon monoxide content of a syngas mixture

Tue, 03 Feb 2015 08:00:00 EST

The invention relates to a process for increasing the carbon monoxide content of a feed gas mixture comprising carbon dioxide, hydrogen and carbon monoxide via a catalytic reversed water gas shift reaction, comprising the steps of (1) heating the feed gas mixture having an initial feed temperature of at most 350° C. in a first zone to a temperature within a reaction temperature range in the presence of a first catalyst; and (2) contacting the heated feed gas in a second zone within the reaction temperature range with a second catalyst. This process shows relatively high conversion of carbon dioxide, and virtually no methane or coke is being formed, allowing stable operation.



Biomass gasification gas purification system and method and methanol production system and method

Tue, 03 Feb 2015 08:00:00 EST

A biomass gasification gas purification system includes a dust collector for removing dust in biomass gasification gas (containing tar components) acquired by gasifying biomass by a biomass gasification furnace, a desulfurizer for removing sulfur oxide components in the dust-removed biomass gasification gas, a pre-reforming reactor for reforming tar components in the desulfurized biomass gasification gas, a steam feed unit for feeding steam to an upstream side of the pre-reforming reactor, and a natural-gas feed unit for feeding natural gas on an upstream side of the desulfurizer.



Gas-to-liquid technology

Tue, 03 Feb 2015 08:00:00 EST

A gas-to-liquids process and plant for treating natural gas, in which the natural gas is subjected to expansion through a flow restrictor so as to undergo cooling through the Joule Thomson effect, enables liquids to be separated from the gas stream. The natural gas may be cooled before it reaches the flow restrictor by heat exchange with fluid that has passed through the flow restrictor. This decreases the proportion of longer-chain hydrocarbons in the natural gas, which may simplify subsequent processing, and may enable the size of the plant to be decreased.



Method for optimizing the operation of a hydrocarbon synthesis unit starting from synthesis gas, by controlling the partial pressure of CO

Tue, 27 Jan 2015 08:00:00 EST

A method is described for optimizing the operation of a reaction section for the synthesis of hydrocarbons from a feed comprising synthesis gas, operated in the presence of a catalyst comprising cobalt, said method comprising the following steps: a) determining the theoretical partial pressure of CO in the reaction section;b) optionally, adjusting the partial pressure of CO determined in step a) to a value of 4 bar or higher;c) determining a new value for the theoretical partial pressure of CO in the reaction section.



Method for reducing CO2 in a gaseous stream by conversion to a Syngas for production of energy

Tue, 20 Jan 2015 08:00:00 EST

A system and method for reducing the CO2 in a gaseous stream between 33% up to and even in excess of 90%, by reducing CO2. A gaseous stream that includes substantial amounts of CO2 is provided to a reaction chamber along with H2O (steam) and a carbon source such as charcoal, coke or other carbonaceous material. Carbon is provided to the chamber at a ratio (C/CO2) of between about 0.100 to 0.850, and between about 0.200 to 0.900 of H2O to the provided CO2. The CO2, H2O and carbon are heated to between about 1500° F. and about 3000° F. at about one atmosphere to produce syngas (i.e. carbon monoxide (CO) and hydrogen (H2)) and reduces the amount of CO2. The Syngas may then be cleaned and provided to a Fischer-Tropsch synthesis reactor or a Bio-catalytic synthesis reactor to produce a fuel, such as Methanol, Ethanol, Diesel and Jet Fuel.



Integrated biorefinery for production of liquid fuels

Tue, 20 Jan 2015 08:00:00 EST

A system for the production of conversion products from synthesis gas, the system including a mixing apparatus configured for mixing steam with at least one carbonaceous material to produce a reformer feedstock; a reformer configured to produce, from the reformer feedstock, a reformer product comprising synthesis gas comprising hydrogen and carbon monoxide from the reformer feedstock; a synthesis gas conversion apparatus configured to catalytically convert at least a portion of the synthesis gas in the reformer product into synthesis gas conversion product and to separate from the synthesis gas conversion product a tailgas comprising at least one gas selected from the group consisting of carbon monoxide, carbon dioxide, hydrogen and methane; and one or more recycle lines fluidly connecting the synthesis gas conversion apparatus with the mixing apparatus, the reformer, or both.



High-speed stop in Fischer-Tropsch process

Tue, 13 Jan 2015 08:00:00 EST

The present invention pertains to a process for carrying out a high-speed stop in a Fischer-Tropsch process which comprises providing a feed to a fixed bed reactor comprising a Fischer-Tropsch catalyst, the reactor being at reaction temperature and pressure, and withdrawing an effluent from the reactor, wherein the high-speed stop is effected by blocking provision of feed to the reactor and simultaneously blocking the withdrawal of effluent from the reactor.



Process for producing methanol

Tue, 13 Jan 2015 08:00:00 EST

The present invention relates to a novel process for the production of methanol. The process comprises the heterolytic cleavage of hydrogen by a frustrated Lewis pair comprising a Lewis acid and a Lewis base; and the hydrogenation of CO2 with the heterolytically cleaved hydrogen to form methanol.



Modular plant for removal of pollutants from flue gases produced by industrial processes

Tue, 13 Jan 2015 08:00:00 EST

The invention relates to a so-called zero emission ‘AST-CNR/ITM system’ modular plant for removal of pollutants from flue gases produced by industrial processes. The plant comprises prefabricated modular elements with programmed and automatic operation, easy to mount and assemble on site without undergoing expensive plant stoppage. Each module or ‘reaction tower’ comprises a plurality of sections vertically arranged on top of one another, which carry out the following functions: Removal of particulate matter with treatment and removal of chemical pollutants, such as heavy metals, chlorides, fluorides Treatment and removal of SOx Treatment and removal of NOx Capture of CO2 Production of hydrogen Production of methanol. The various sections may be combined according to the requirements of the plant and of the flue gases to be treated.



Method for producing ethanol

Tue, 06 Jan 2015 08:00:00 EST

A method for producing ethanol by which ethanol can be synthesized from less fermentable biomass materials such as plant-derived materials and rice straws and industrial waste biomass materials such as wooden building materials and pulp and which can therefore broaden the range of raw materials for the production of ethanol. Specifically, a method for producing ethanol including reacting a raw material gas obtained by a thermochemical gasification reaction of biomass in the presence of a catalyst containing rhodium, at least one transition metal, and at least one element selected from lithium, magnesium and zinc.



Counter-current multistage fischer tropsch reactor systems

Tue, 06 Jan 2015 08:00:00 EST

The invention discloses an improved multistage fischer tropsch process scheme for the production of hydrocarbon fuels comprising feeding gaseous phase syngas and liquid stream hydrocarbons in a counter current manner such as herein described into the reaction vessel at a number of stages containing reaction catalysts; wherein fresh syngas enters into the stage where the product liquid stream leaves and the fresh liquid stream enters into the stage where the unreacted syngas leaves; wherein further the temperature of each stage can be controlled independently. More particularly the invention relates to improving the heat release in different reactors, product selectivity and reactor productivity of FT reactors.



Process for the production of methane

Tue, 06 Jan 2015 08:00:00 EST

A process for the production of methane comprising reacting at least part of a feed gas containing carbon monoxide and hydrogen in an internally cooled methanation reactor containing a nickel comprising methanation catalyst to produce a product gas containing methane, cooling the internally cooled methanation reactor with water, wherein the water enters the internally cooled methanation reactor at a temperature in the range from 20-120° C. below its boiling temperature.



Methods and systems for producing synthetic fuel

Tue, 06 Jan 2015 08:00:00 EST

Methods and systems for producing a synthetic fuel are disclosed. In some embodiments, the methods and systems include the following: thermally reforming methane and carbon dioxide to generate a syngas including a first quantity of carbon monoxide and a first quantity of hydrogen; oxidizing the quantity of first carbon monoxide with a metal to produce metal oxide and carbon thereby separating oxygen from the carbon monoxide; gasifying the carbon using steam to produce a second quantity of carbon monoxide and a second quantity of hydrogen; reacting the metal oxide with methane to produce metal oxide, carbon dioxide, and a third quantity of hydrogen; and synthesizing the first quantity of carbon monoxide, the first quantity of hydrogen, the second quantity of hydrogen, and the third quantity of hydrogen to form the synthetic fuel.