Class / Patent application number | Description | Number of patent applications / Date published |
048127500 | Process including chemical reaction | 58 |
20090100753 | System and Method for Hydrogen Sulfide Decontamination - The invention describes a system and method for hydrogen sulfide decontamination of natural gas using a scavenging reagent. The system uses a scavenging reagent within two reactors wherein the consumption of scavenging reagent is optimized by the control of flow of clean and partially-consumed scavenging reagent within and between the two reactors. | 04-23-2009 |
20090217583 | Method of converting animal wastes to energy and useful by-products - A method for converting animal waste, in the form of waste slurry, to energy and useful byproducts. A screen mesh filters out large objects from waste slurry and the filtered slurry is chopped and fragmented to reduce binding of fibrous materials. The fragmented slurry is mixed at a rate to maintain solids in the fragmented slurry in suspension while minimizing aeration and turbulence within the mixing unit. A solids recovery unit recovers about 95% of the suspended solids. An additive is introduced into the solids recovery unit for providing agglomeration of solids particles. The recovered solids are gasified to produce at least methane/ethane gas. The produced gas is provided to an energy production unit to generate electrical and/or heat energy. Liquid remaining after the solids recovery is treated to remove undesirable contaminants to an extent in compliance with water quality standards set for animal waste flushing, animal washing and animal drinking water, as the case may be. | 09-03-2009 |
20100024298 | METHOD AND APPARATUS FOR PRODUCING METHANE FROM CARBONACEOUS MATERIAL - A method for producing methane ( | 02-04-2010 |
20100037521 | Novel Steam Reformer Based Hydrogen Plant Scheme for Enhanced Carbon Dioxide Recovery - A novel steam reformer unit design, a novel hydrogen PSA unit design, a novel hydrogen/nitrogen enrichment unit design, and novel processing scheme application are presented. The result of these innovations results in re-allocating most of the total hydrogen plant CO2 emissions load to high pressure syngas stream exiting the water gas shift reactor while minimizing the CO2 emissions load from the reformer furnace flue gas. As compared to the conventional 60/40 split of total CO2 emissions in syngas/flue gas streams for steam reformer based conventional hydrogen plant designs, the present invention results in 85/15 or better CO2 split. This will permit about 85% or better of the total CO2 emissions load to be captured from the syngas stream, using the conventional, well proven and cost effective amine scrubbing technology. Such 85% or better CO2 capture is much greater than the 55% to 60% maximum possible using conventional steam reformer based hydrogen plant technology. As CO2 recovery from high pressure syngas stream is much easier and cost effective as compared to that from low pressure reformer furnace flue gases, a major cost benefit for equivalent CO2 recovery results with the present invention. | 02-18-2010 |
20100050519 | Energy gas producing process and energy gas storage material - There is provided a process for producing an energy gas at a lower temperature and in a larger amount, as well as an energy gas storage material capable of easily taking out the energy gas. A process for producing an energy gas including a MG processing step of co-grinding a mixture of a carbon-, hydrogen-, and oxygen-containing compound, an alkali metal or compound thereof, and an alkaline earth metal or a compound thereof, thereby obtaining a MG processing product and a heating step of heating the MG processing product in an inert atmosphere, as well as an energy storage material obtained by the MG processing described above. The MG processing step preferably including adding a transition metal or a compound thereof to the mixture and co-grinding the mixture. | 03-04-2010 |
20100287835 | Processes for Hydromethanation of a Carbonaceous Feedstock - The present invention relates to processes for preparing gaseous products, and in particular methane, via the hydromethanation of a carbonaceous feedstock in the presence of steam, syngas, a hydromethanation catalyst and an oxygen-rich gas stream. | 11-18-2010 |
20110067305 | HYDROCARBON SYNTHESIZER - A hydrocarbon synthesizer system for the production of petroleum fractions from a feedstock. Methods of synthesizing hydrocarbons from a feedstock. | 03-24-2011 |
20110179714 | PROCESS FOR THE PURIFICATION-SWEETENING OF NATURAL GAS BY MEANS OF CONTROLLED DISSOCIATION OF HYDRATES AND USE THEREOF AS SEPARATORS - The invention concerns a process for reducing and/or removing sour gases, such as carbon dioxide and hydrogen sulfide, from natural gas or from gas associated with oil reservoirs, by means of the formation of mixed hydrates, wherein a selective separation is carried out both during the hydrates decomposition, under pressure conditions close to atmospheric pressure and temperatures little below zero, and, preferably, during a preliminary step, with pressures and temperatures close to the equilibrium values. | 07-28-2011 |
20110185633 | SYSTEM AND METHOD FOR REMOVING HYDROGEN SULFIDE FROM A NATURAL GAS STREAM - A refining system for refining a feed gas comprising hydrocarbons and hydrogen sulfide having a first concentration of hydrogen sulfide includes a first part for producing a stream of a first processed feed gas, a second part for producing a second stream of a second processed feed gas from the stream of the first processed feed gas using a separation process for H2S removal. The second part includes a cyclonic separator ( | 08-04-2011 |
20110239542 | APPARATUS AND METHOD FOR EFFECTING PLASMA-BASED REACTIONS - There is provided a reactor system comprising a plasma generator and a reaction vessel. The plasma generator is configured for effecting a plasma discharge into a reaction zone to produce a plasma plume. The reaction vessel defines the reaction zone. The reaction vessel includes a reactant flow inlet configured for flowing and discharging gaseous reactant flow into the reaction zone, and a stabilizing gaseous flow inlet configured for introducing and effecting vortical flow of a stabilizing gaseous fluid into the reaction vessel. The vortical flow of the stabilizing gaseous fluid effects a spatial disposition of the plasma plume such that at least a fraction of the gaseous reactant flow intersects the plasma plume. | 10-06-2011 |
20120073199 | Pyrobiomethane process - A method for enhancing the treatment of lignocellulose-containing materials by biotreatment wherein such lignocellulose-containing materials, normally resistant to biotreatment, are first subjected to a low-temperature, long-residence time pyrolysis at about 175° C. to about 325° C. for about 0.1 hour to about 2.0 hours, wherein a substantial portion of the incoming material is distilled into water-soluble compounds amenable to anaerobic biotreatment. Exemplary applications of the method include pyrolytic pre-treatment of wastewater sludges, cellulosic wastes, wood, peat, plant residues, low-grade coal, and the like to enhance methane gas production in anaerobic digestion and/or oxygen-limited or oxygen-starved fermentation to produce ethanol. | 03-29-2012 |
20130019530 | METHOD AND AN APPARATUS FOR SWEETENING AND DEHYDRATING A HYDROCARBON GAS, IN PARTICULAR A NATURAL GAS - A method and an apparatus for removing acid compounds (sweetening) and moisture (dehydration) from a hydrocarbon gas, in particular from a natural gas or from a refinery gas fraction or a gas of synthesis, by subsequent absorption operations using a sweetening liquid and a dehydration liquid. The method comprises a step of prearranging a sweetening chamber ( | 01-24-2013 |
20130192138 | METHODS FOR DEACTIVATING BIOMASS - A method of deactivating biomass is set forth. The method includes two stages, a disrupting stage and a rupture stage. The disrupting stage includes the steps of injecting an oxidizer gas into the biomass with minimal or significant elevated pressure and then a depressurizing of the biomass. The steps cause a disruption of cellular membranes of cells present in the biomass. The rupture stage includes the step of injecting the biomass with a rupture gas sufficient to pressurize the biomass to a second elevated pressure following by the depressurizing of the biomass. The injecting and depressurizing steps of the rupture stage can be repeated at least two times in order to rupture the cell membranes and expose residual cell contents. | 08-01-2013 |
20130326952 | Renewable Blended Natural Gas and Rock Wool Production from a Plasma-Based System - A method and system for cost effectively converting a feedstock using thermal plasma or other styles of gassifiers, into an energy transfer medium using a blended gaseous fuel. The feedstock can be any organic material or inorganic combination to generate a syngas. The syngas is blended with any fuel of a higher thermal content (BTU) than the syngas. The resulting blended high thermal content fuel is used on site or reinjected into the fuel supply pipe line. Rock wool and accessory heat are produced to increase the efficiency of the plant. | 12-12-2013 |
20130333289 | CAUSTIC SCRUBBER SYSTEM AND METHOD FOR BIOGAS TREATMENT - The present invention provides a method and apparatus for the treatment of process gas from an anaerobic digestion system or a landfill gas system. In one embodiment, the system comprises a caustic scrubber including a vertical column having a top and a bottom and including a counter current flow system, wherein a process gas stream flows up vertically through the column in counter current flow to a caustic liquid solution that flows downward through the column. The caustic liquid solution removes at least one acid from the process gas stream, wherein treated gas that is substantially free of acids bubbles out through an opening at the top of the vertical column | 12-19-2013 |
20140196370 | Co-Fired Syngas System - A method of generating a blended syngas as a primary product from renewable feedstock, fossil fuels, or hazardous waste with the use of a gassifier arrangement. The generated syngas is blended with natural gas to form a blended fuel product that is delivered to a manufacturing facility or a natural gas power plant. | 07-17-2014 |
20150027056 | SEPARATION OF HYDROGEN SULFIDE FROM NATURAL GAS - A process for increasing the selectivity of an alkanolamine absorption process for selectively removing hydrogen sulfide (H | 01-29-2015 |
20150322357 | SYSTEM AND METHOD FOR PROCESSING AN INPUT FUEL GAS AND STEAM TO PRODUCE CARBON DIOXIDE AND AN OUTPUT FUEL GAS - A method and system for processing an input fuel gas and steam to produce separate CO | 11-12-2015 |
048127700 | Catalytic | 40 |
20080282612 | Process and Apparatus for the Purification of Methane Rich Gas Streams - The invention is directed to processes and apparatuses for gas treatment, in particular for the purification of methane rich gas streams, such as gas obtained from the conversion from organic matter (“biogas”). In accordance with the present invention there is provided an apparatus and a process for producing a purified methane comprising gas stream (P) from a methane containing gas stream (A), comprising the steps of: (a) pressurising said methane containing gas stream (A) and subsequently cooling it, whereby a stream comprising condensed contaminants (C) and a methane comprising stream (B) are obtained; (b) optionally feeding said methane comprising stream (B) to an adsorption unit and/or a catalytic conversion unit, whereby the concentration of contaminants in stream (B) is further decreased; and (c) cooling the methane comprising stream (B) to a temperature which is sufficient to condensate CO2 from said stream (B), whereby said purified methane comprising gas stream (P) is obtained. | 11-20-2008 |
20090013600 | DUAL MODE REACTOR SMR INTEGRATION - The present invention relates to systems and processes for producing syngas in steam methane reformer (SMR)-based plants, particularly to the use of a high space velocity, dual mode catalytic reactor to pre-reform plant feedstock. The dual mode reactor has the capability to operate in two modes: either without oxygen addition in a reforming mode or with oxygen addition in a partial oxidation-reforming mode. The dual mode reactor allows the syngas production rate of the plant to be manipulated without the added capital expense of a reheat coil and with reduced impact on export steam production. | 01-15-2009 |
20090019770 | CATALYTIC ELEMENT - A catalytic element useful for promoting catalytic gas phase reactions is provided, comprising a porous ceramic body comprising a multiplicity of open pores having a coating comprising a basic oxide material and a catalyst material selected from transition metal and noble metal compounds | 01-22-2009 |
20090090055 | Compositions for Catalytic Gasification of a Petroleum Coke - The present invention relates to particulate compositions of a lower ash type petroleum coke containing at least two preselected components (alkali metal and iron) that exhibit an efficient, enhanced-yielding gasification to value added gaseous products, particularly when used in a steady-state integrated gasification process. The compositions of the present invention are particularly useful for catalytic gasification of petroleum coke at moderate temperatures ranging from about 450° C. to about 900° C. Advantageously, the compositions can be readily incorporated into fluidized bed gasification units, and can result in a cost-effective, high-yielding production of methane gas from petroleum coke. | 04-09-2009 |
20090090056 | Compositions for Catalytic Gasification of a Petroleum Coke - The present invention relates to particulate compositions of a lower ash type petroleum coke containing at least two preselected components (alkali metal and calcium) that exhibit an efficient, enhanced-yielding gasification to value added gaseous products, particularly when used in a steady-state integrated gasification process. The compositions of the present invention are particularly useful for catalytic gasification of petroleum coke at moderate temperatures ranging from about 450° C. to about 900° C. Advantageously, the compositions can be readily incorporated into fluidized bed gasification units, and can result in a cost-effective, high-yielding production of methane gas from petroleum coke. | 04-09-2009 |
20090107044 | THERMOCHEMICAL SYNTHESIS OF FUELS FOR STORING THERMAL ENERGY - The present invention provides a method for storing thermal energy, such as solar energy, as a fuel, by heating a reactive oxide substrate to a first temperature, such that the reactive oxide substrate is reduced, wherein the reactive oxide substrate includes a cerium oxide. The method also includes contacting the reduced reactive oxide substrate at a second temperature with a gas mixture including carbon dioxide, wherein the first temperature is greater than the second temperature, thereby preparing the fuel. The present invention also provides a method for preparing the reactive oxide substrates by heating a mixture including a doped cerium oxide and a pore-forming agent, such that pores are formed in the doped cerium oxide, thereby forming the reactive oxide substrate. | 04-30-2009 |
20090126274 | Process for Generating Methane and/or Methane Hydrate From Biomass - To generate methane from biomass, a biomass pulp is produced from the biomass with a desired dry mass content being set, and the biomass pulp is placed under pressure. The biomass pulp is heated under pressure in order to liquefy the solid organic components of the biomass pulp. The pressurized and heated biomass pulp is heated further to at least the critical temperature of the biomass pulp. Solids precipitated under pressure and increased temperature are separated from the fluid phase. At least a part of the remaining fluid phase is gasified under pressure and increased temperature by means of a reactor to form a methane-rich gas. | 05-21-2009 |
20090158660 | Process to Maximize Methane Content in Natural Gas Stream - The present invention relates to a hydrogenolysis process and catalyst for conversion of ethane to methane in a natural gas stream when such streams contain large quantities of ethane. Such natural gas streams include the product of the in situ treatment of oil shale to produce oil and gas. Hydrogenolysis catalysts have been identified that produce high yields of ethane at low light-off temperatures. | 06-25-2009 |
20090165378 | FRACTIONAL CATALYTIC PYROLYSIS OF BIOMASS - Methods for fractional catalytic pyrolysis which allow for conversion of biomass into a slate of desired products without the need for post-pyrolysis separation are described. The methods involve use of a fluid catalytic bed which is maintained at a suitable pyrolysis temperature. Biomass is added to the catalytic bed, preferably while entrained in a non-reactive gas such as nitrogen, causing the biomass to become pyrolyzed and forming the desired products in vapor and gas forms, allowing the desired products to be easily separated. | 07-02-2009 |
20090165379 | Coal Compositions for Catalytic Gasification - Particulate compositions are described comprising an intimate mixture of a coal and a gasification catalyst in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products. | 07-02-2009 |
20090165380 | Petroleum Coke Compositions for Catalytic Gasification - Particulate compositions are described comprising an intimate mixture of a petroleum coke and an alkali metal gasification catalyst, where the alkali metal gasification catalyst comprises a combination of an alkali metal hydroxide and one or more other alkali metal compounds are loaded onto coke for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products. | 07-02-2009 |
20090165381 | Processes for Making Syngas-Derived Products - The present invention provides processes for making syngas-derived products. For example, one aspect of the present invention provides a process for making a syngas-derived product, the process comprising (a) providing a carbonaceous feedstock; (b) converting the carbonaceous feedstock in a syngas formation zone at least in part to a synthesis gas stream comprising hydrogen and carbon monoxide; (c) conveying the synthesis gas stream to a syngas reaction zone; (d) reacting the synthesis gas stream in the syngas reaction zone to form the syngas-derived product and heat energy, a combustible tail gas mixture, or both; (e) recovering the syngas-derived product; and (f) recovering the heat energy formed from the reaction of the synthesis gas stream, burning the combustible tail gas mixture to form heat energy, or both. | 07-02-2009 |
20090165382 | Catalytic Gasification Process with Recovery of Alkali Metal from Char - Processes for extracting and recycling alkali metal compounds present in the char produced from the catalytic gasification of carbonaceous materials are provided involving at least contacting the char with and alkali metal hydroxide followed by carbon dioxide. Both the alkali metal hydroxide and carbon dioxide treatments serve to convert at least a portion of the insoluble alkali metal compounds in the char into soluble species which can be recovered and recycled. | 07-02-2009 |
20090188164 | METHOD AND SYSTEM FOR HYDROGEN SULFIDE REMOVAL - A method and system for hydrogen sulfide removal from a sour gas mixture including hydrogen sulfide includes providing an aqueous solution comprising a transition metal oxide, sulfide or carbonate compound, wherein a transition metal of the transition metal oxide is at a first valence and has at least one reduction state from the first valence. The sour gas mixture is reacted with the transition metal compound and the aqueous solution in a reactor, wherein sulfide from the hydrogen sulfide is oxidized to form elemental sulfur and the transition metal is reduced to form a reduced state transition metal compound. An electrochemical redox reaction is performed including the reduced state transition metal compound to regenerate the transition metal compound in an electrolyzer comprising an anode, a cathode, and an electrolyte membrane between the anode and cathode, wherein an oxygen including gas is added to the cathode during the electrochemical redox reaction. The transition metal compound that is regenerated in the electrochemical redox reaction is then returned to the reactor for the reacting. | 07-30-2009 |
20090205254 | Method And System For Converting A Methane Gas To A Liquid Fuel - A method for converting a methane gas to liquid fuel forms a non-thermal plasma with radicals and directs the plasma over a catalyst to convert the radicals to higher hydrocarbons in liquid form. The method can be performed in a reactor such as a microwave plasma reactor, or a pulsed corona discharge plasma reactor. A system for performing the method includes a methane gas source, a reactant gas source, a reactor and a catalyst. | 08-20-2009 |
20090217584 | Steam Generation Processes Utilizing Biomass Feedstocks - Integrated catalytic gasification processes are provided involving generating steam for converting carbonaceous materials to combustible gases, such as methane. Generally, steam generated from the combustion of a biomass is provided to a catalytic gasifier, wherein under appropriate temperature and pressure conditions, a carbonaceous feedstock is converted into a plurality of product gases, including, but not limited to, methane, carbon monoxide, hydrogen, and carbon dioxide. | 09-03-2009 |
20090217585 | Reduced Carbon Footprint Steam Generation Processes - Processes for the generation of steam are provided for use in an integrated catalytic gasification process for converting carbonaceous materials to combustible gases, such as methane. Generally, the exhaust gas from a steam generating reactor is provided along with steam, a carbonaceous feedstock, and a gasification catalyst, to a catalytic gasifier, wherein under appropriate temperature and pressure conditions, the carbonaceous feedstock is converted into a plurality of product gases, including, but not limited to, methane, carbon monoxide, hydrogen, and carbon dioxide. As substantially all the carbon dioxide produced from the steam generation process and the gasification process are subsequently directed though gas purification and separation processes, substantially all the carbon dioxide may be recovered, yielding a process having a near zero carbon footprint. | 09-03-2009 |
20090217586 | Coal Compositions for Catalytic Gasification - Particulate compositions are described comprising an intimate mixture of a coal and a gasification catalyst. The particulate compositions are gasified in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia and other higher hydrocarbons. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products. | 09-03-2009 |
20090217587 | Biomass Compositions for Catalytic Gasification - Particulate compositions are described comprising an intimate mixture of a biomass, such as switchgrass or hybrid poplar, a non-biomass carbonaceous material, such as petroleum coke or coal, and a gasification catalyst, where the gasification catalyst is loaded onto at least one of the biomass or non-biomass for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products. | 09-03-2009 |
20090260287 | Process and Apparatus for the Separation of Methane from a Gas Stream - Processes for conversion of a carbonaceous composition into a gas stream comprising methane are provided, where an energy-efficient process and/or apparatus is used to separate methane out of a gas stream comprising methane, carbon monoxide, and hydrogen. Particularly, methane can be separated from hydrogen and carbon monoxide using novel processes and/or apparatuses that generate methane hydrates. Because hydrogen and carbon monoxide do not readily form hydrates, the methane is separated from a gas stream. The methane can be captured as a substantially pure stream of methane gas by dissociating the methane from the hydrate and separating out any residual water vapor. | 10-22-2009 |
20090293359 | PROCESS FOR UPGRADING A CARBONACEOUS MATERIAL USING MICROCHANNEL PROCESS TECHNOLOGY - This invention relates to a process for converting a carbonaceous material to a desired product comprising one or more hydrocarbons or one or more alcohols, the process comprising: (A) gasifying the carbonaceous material at a temperature in excess of about 700° C. to form synthesis gas; and (B) flowing the synthesis gas in a microchannel reactor in contact with a catalyst to convert the synthesis gas to the desired product. | 12-03-2009 |
20100071262 | Processes for Gasification of a Carbonaceous Feedstock - The present invention relates to processes and continuous processes for preparing gaseous products, and in particular, methane via the catalytic gasification of carbonaceous feedstocks in the presence of steam. In one aspect of the invention, the processes comprise at least partially combusting a first carbonaceous feedstock with an oxygen-rich gas stream in an oxygen-blown gasifier, under suitable temperature and pressure, to generate a first gas stream comprising hydrogen, carbon monoxide and superheated steam; and reacting a second carbonaceous feedstock and the first gas stream in a catalytic gasifier in the presence of a gasification catalyst under suitable temperature and pressure to form a second gas stream comprising a plurality of gaseous products comprising methane, carbon dioxide, hydrogen, carbon monoxide and hydrogen sulfide. The processes can comprise using at least one catalytic methanator to convert carbon monoxide and hydrogen in the gaseous products to methane and in certain embodiments do not recycle carbon monoxide or hydrogen to the gasifier. | 03-25-2010 |
20100139166 | Dynamic Composition for the Removal of Sulfur from a Gaseous Stream - The present invention relates to a method of making a chemical compound comprising nickel, aluminum, oxygen and sulfur having a general formula Ni | 06-10-2010 |
20100199559 | PROCESS FOR THE CONVERSION OF ORGANIC MATERIAL TO METHANE RICH FUEL GAS - The present disclosure relates to a process for the conversion of organic material to methane rich gas. In particular, the process comprises heating vaporized organic material in the presence of an excess amount of hydrogen gas and superheated steam to produce a methane rich fuel gas at pressures greater than 0 atmospheres gauge up to about 2 atmosphere gauge. | 08-12-2010 |
20100205863 | Process to Produce a Methane Rich Gas Mixture From Gasification Derived Sulphur Containing Synthesis Gases - A method for converting a raw gas into a methane-rich and/or hydrogen-rich gas includes the following steps: a) providing the raw gas stemming from a coal and/or biomass gasification process, thereby the raw gas comprising beside a methane and hydrogen content carbon monoxide, carbon dioxide, alkanes, alkenes, alkynes, tar, especially benzole and naphthalene, COS, hydrogen sulfide and organic sulfur compounds, especially thiophenes; thereby the ratio of hydrogen to carbon monoxide ranges from 0.3 to 4; b) bringing this raw gas into contact with a catalyst in a fluidized bed reactor at temperatures above 200° C. and at pressures equal or greater than 1 bar in order to convert the raw gas into a first product gas, thereby simultaneously converting organic sulfur components into hydrogen sulfide, reform tars, generate water/gas shift reaction and generate methane from the hydrogen/carbon monoxide content; c) bringing the first product gas into a sulfur absorption process to generate a second product gas, thereby reducing the content of hydrogen sulfur and COS from 100 to 1000 ppm down to 1000 ppb or less; d) optionally bringing the second product gas into a carbon dioxide removal process to generate a third product gas at least almost free of carbon dioxide; e) bringing the third product gas into a second methanation process to generate a fourth product gas having a methane content above 5 vol %; f) optionally bringing the fourth product gas into a carbon dioxide removal process to generate a fifth product gas at least almost free of carbon dioxide g) bringing the fifth product gas into an hydrogen separation process in order to separate a hydrogen rich gas from a remaining methane-rich gas, called substitute natural gas. | 08-19-2010 |
20100251615 | METHOD FOR PRODUCING METHANE FROM BIOMASS - A multi-stage method and apparatus for producing methane from biomass in which the biomass is hydropyrolyzed in a reactor vessel containing molecular hydrogen and a deoxygenating catalyst, the output of which is hydrogenated using a hydroconversion catalyst. The output from the hydroconversion step is provided to a water-gas-shift process providing a mixture of H | 10-07-2010 |
20100287836 | Processes for Hydromethanation of a Carbonaceous Feedstock - The present invention relates to processes for preparing gaseous products, and in particular methane, via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen and a hydromethanation catalyst. | 11-18-2010 |
20110265380 | PROCESS FOR PRODUCING PURIFIED NATURAL GAS - The present invention provides a process for purifying natural gas, comprising removing mercaptans from a natural gas stream by a combination of an amine-based separation unit and a selective oxidation unit to obtain a purified natural gas stream, wherein at least part of the mercaptans are converted into at least elemental sulphur in the selective oxidation unit by selective catalytic oxidation. | 11-03-2011 |
20120060417 | HYDROMETHANATION OF A CARBONACEOUS FEEDSTOCK - The present invention relates to processes for hydromethanating a carbonaceous feedstock to a fines-depleted methane-enriched synthesis gas, with recycle of recovered particulate fines back into a specified portion of a hydromethanation reactor. | 03-15-2012 |
20120060418 | CATALYTIC GASIFICATION OF ORGANIC MATTER IN SUPERCRITICAL WATER - A catalyst system including at least one metal and an oxide support, said oxide support including at least one of Al | 03-15-2012 |
20120102836 | Hydromethanation Of A Carbonaceous Feedstock - The present invention relates to processes for hydromethanating a carbonaceous feedstock to a methane-enriched synthesis gas, where an oxygen-rich gas stream and the carbonaceous feedstock are fed into a fluidized-bed hydromethanation reactor at a specified zone in order to assist in heat management within the hydromethanation reactor. | 05-03-2012 |
20120102837 | Hydromethanation Of A Carbonaceous Feedstock - The present invention relates to processes for hydromethanating a carbonaceous feedstock to a methane-enriched synthesis gas, where an oxygen-rich gas stream and the carbonaceous feedstock are fed into a fluidized-bed hydromethanation reactor, and where the carbonaceous feedstock as fed into the hydromethanation reactor has an elevated moisture content in order, for example, to assist in heat management within the hydromethanation reactor. | 05-03-2012 |
20120240467 | PROCESS FOR THE CONVERSION OF MIXED LOWER ALKANES TO AROMATIC HYDROCARBONS - A process for the conversion of mixed lower alkanes into aromatics which comprises first reacting a mixed lower alkane feed comprising at least propane and ethane in the presence of an aromatization catalyst under reaction conditions which maximize the conversion of propane into first stage aromatic reaction products, separating ethane from the first stage aromatic reaction products, reacting ethane in the presence of an aromatization catalyst under reaction conditions which maximize the conversion of ethane into second stage aromatic reaction products, and optionally separating ethane from the second stage aromatic reaction products. | 09-27-2012 |
20120304539 | PRODUCTION OF A MIXTURE OF HYDROGEN AND NATURAL GAS - The present subject matter relates to a process of reforming a natural gas stream by steam. The reforming is carried out at a temperature within a predetermined range to form a substantially carbon monoxide free product mixture of hydrogen and natural gas. The reforming is carried out in presence of a nickel-based catalyst. The temperature is controlled in a range of about 350° C. to about 390° C. The reforming can be started or stopped or its rate can be varied, based on an outflow demand of the product mixture of hydrogen and natural gas. | 12-06-2012 |
20140130416 | Imidazole-Containing Polymer Membranes and Methods of Use - Imidazole-containing polymer membranes are described herein. Methods of their preparation and use are also described herein. The methods of using the membranes include capturing and reducing volatile compounds from gas streams. | 05-15-2014 |
20140208650 | Metal-Organic Framework Extrudates With High Packing Density And Tunable Pore Volume - The present invention relates to extruded shaped bodies containing at least one metal-organic framework (MOF), methods for their preparation and their use. | 07-31-2014 |
20150040479 | METHOD AND SYSTEM FOR COGENERATING GAS-STEAM BASED ON GASIFICATION AND METHANATION OF BIOMASS - A method for cogenerating gas-steam based on gasification and methanation of biomass. The method includes: 1) mixing oxygen and water vapor with biomass, transporting the resulting mixture via a nozzle to a gasifier, gasifying the biomass to yield crude gasified gas, and transporting superheated steam having a pressure of 5-6 MPa resulting from sensible heat recovery to a steam turbine; 2) adjusting the hydrogen/carbon ratio of the crude gasified gas generated from step 1) to 3:1, and eluting the crude gasified gas whereby yield purified syngas; 3) introducing the purified syngas from step 2) to a methanation unit and transporting intermediate pressure superheated steam generated in the methanation unit to the steam turbine; and 4) concentrating methane of synthetic natural gas containing trace nitrogen and water vapor obtained from step 3) through pressure swing adsorption. | 02-12-2015 |
20150096231 | CONFIGURATIONS, SYSTEMS, AND METHODS FOR RECOVERY OF ELEMENTAL SULFUR USING A SOLVENT - Elemental sulfur carrying capacity of a hydrocarbonaceous solvent is improved by first loading the solvent with sulfur and subsequent hydrotreatment under conditions that convert at least some of the elemental sulfur in the sulfur loaded solvent to hydrogen sulfide while preserving at least 95% of the monoaromatic and polyaromatic components in the solvent. | 04-09-2015 |
20150299597 | PROCESS FOR PRODUCING DRY SYNTHETIC NATURAL GAS (SNG) - A process for producing dry synthetic natural gas (SNG, Synthetic Natural Gas) from solid or liquid, carbonaceous fuel, substantially consisting of the following process steps:
| 10-22-2015 |
20160130516 | REFINING ASSEMBLIES AND REFINING METHODS FOR RICH NATURAL GAS - Refining assemblies and methods for refining rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas are disclosed. In some embodiments, the assemblies may include a methane-producing assembly configured to receive at least one liquid-containing feed stream that includes water and rich natural gas and to produce an output stream therefrom by (a) converting at least a substantial portion of the other hydrocarbons of the rich natural gas with the water to a second methane gas, a lesser portion of the water, and other gases, and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas to pass through the methane-producing assembly unconverted. The assemblies may additionally include a purification assembly configured to receive the output stream and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream. | 05-12-2016 |