Class / Patent application number | Description | Number of patent applications / Date published |
423655000 | By reacting water with carbon monoxide | 22 |
20080233045 | Catalyst for Hydrogen Production From Water Gas Shift Reaction - Fe—Al—Cu catalysts have numerous industrial applications, for example, as catalysts in a water gas shift reactor. A method of producing a Fe—Al—Cu catalyst comprises the steps of providing an organic iron precursor, dissolving the organic iron precursor in a solvent solution, adding an aqueous solution comprising aluminum nitrate and copper nitrate to the organic iron pre-cursor-solvent solution, precipitating a gel comprising Fe—Al—Cu by adding a base, and drying the gel to form the Fe—Al—Cu catalyst. | 09-25-2008 |
20100055030 | REFORMING APPARATUS AND METHOD OF OPERATING THE SAME - An object of the present invention is to provide a reforming apparatus and the like capable of uniformly mixing water (steam) and a raw material together, of preventing the precipitation of carbon without using a temperature controller, and of efficiently heating the water and the mixture by heating gas. Accordingly, the reforming apparatus has the following configuration. The reforming apparatus includes: a first vaporizer ( | 03-04-2010 |
20100074839 | HYDROGEN PRODUCTION METHOD - A method of producing a hydrogen product stream in which a steam stream is reacted with a hydrocarbon containing stream within a steam methane reformer. The resulting product stream is subjected to a water gas shift reaction and then to pressure swing adsorption to produce the hydrogen product stream. The hydrocarbon stream is alternatively formed from a first type of feed stream made up of natural gas, refinery off-gas, naphtha or synthetic natural gas or combinations thereof and a second type that is additionally made up of a hydrogen and carbon monoxide containing gas. During use of both of the types of feed streams, the flow rate of the steam stream is not substantially changed and reformer exit temperatures of both the reactant and the flue gas side are held essentially constant. | 03-25-2010 |
20100196260 | CATALYST FOR VAPOUR CONVERSION OF CARBON MONOXIDE METHODS FOR THE PRODUCTION AND FOR THE USE THEREOF - The invention relates to producing hydrogen by means of the vapour conversion of carbon monoxide and a catalyst for said process and can be used in different industries. The invention discloses an iron-chromium catalyst containing an iron-chromium hydroxyl compound phase having a goethite and/or hydrohematite structure, a method for the preparation thereof and a method for the use thereof in a process for the vapour conversion of carbon monoxide. The catalyst can also contain copper. The catalyst is obtainable by precipitating sodium and potassium, by means on solutions of carbonates or ammonia hydroxides, from solutions of mixture of iron 2+ and 3+ and chromium 3+ nitrates which are obtained by the oxidation-reduction interaction of metal iron, chromium 6+ compounds and nitric acid. A process for the vapour conversion of carbon monoxide using said catalyst according to the inventive method is carried out at a temperature greater than 250° C. Said invention makes it possible to produce a catalyst having low sulphur (equal to or less than 0.03 mass %) and chromium 6+ (equal to or less than 0.05 mass %) contents and exhibiting a high activity at temperatures of 350° C. and less. | 08-05-2010 |
20100254893 | HYDROGEN GENERATING APPARATUS USING STEAM REFORMING REACTION - The present invention provides a hydrogen generator for generating hydrogen through a steam-reforming process using hydrocarbons as a raw material and a method of operating the same, and, more particularly, provides a hydrogen generator for generating hydrogen through a steam reforming process, which can be stably operated because water is introduced into the hydrogen generator in the form of single phase vapor, and which can achieve high thermal efficiency using a proper heat exchanging method, and to a method of operating the same. According to the present invention, there is provided a heat exchanger network, in which heat necessary for a reforming reaction are obtained by the heat exchange of high-temperature exhaust gas or reformed gas, and in which, in a water gas converting reaction and a PSA reaction conducted at low temperatures compared to the reforming reaction, heat exchange is performed by low-temperature air or water, and the heat-exchanged air and the residual gas in the PSA reaction are used as a heat supply source for the reforming reactor together with fuel hydrocarbons, thereby minimizing the thermal loss of the hydrogen generator. | 10-07-2010 |
20110027170 | FIXED AND FLUIDIZED BED WATER GAS SHIFT REACTOR USING SYNGAS FROM WASTE GASIFICATION AND HYDROGEN PRODUCTION METHOD USING THE SAME - The water gas shift reactor includes a gas reaction tank including a reaction chamber formed in the shape of a hollow body provided with a porous plate installed therein to divide the inside of the reaction chamber into an upper reaction space and a lower collection space and a catalyst stacked on the upper surface of the porous plate to convert carbon monoxide into hydrogen, and an insulating layer provided at the outer surface of the reaction chamber, a syngas storage tank to store the syngas, a syngas supply pipe to supply the syngas to the gas reaction tank, after the syngas is heated by a preheater, a steam supply pipe to supply steam generated from a steam generator to the gas reaction tank such that the steam reacts with the syngas, after the steam is heated by a preheater, and a reaction gas discharge pipe. | 02-03-2011 |
20110110849 | METHOD OF CONVERTING A RAW MATERIAL STREAM INTO A PRODUCT STREAM USING A FLUIDIZED BED AND APPARATUS FOR USE IN SAID METHOD - The present invention relates to a method of converting a raw material stream into a product stream by passing said raw material stream through a bed of fluidized solid particles and allowing heat exchange to occur between the bed of fluidized solid particles and the raw material stream, said method being characterized in that it alternately employs a production mode and a restoration mode to control the temperature of the bed of fluidized solid particles: -said production mode comprising passing the raw material stream through the bed of fluidized solid particles and allowing the temperature of the fluidized solid particles in the bed to decrease or to increase as a result of the production energy associated with the conversion of the raw materials stream into the product stream; and -said restoration mode comprising restoring the temperature of the bed of fluidized solid particles by passing a restoration stream through the bed of fluidized solid particles to decrease the temperature of the fluidized solid particles in case the temperature of the fluidized solid particles has increased during the production mode or to increase the temperature of the fluidized solid particles in case the temperature of the fluidized solid particles has decreased during the production mode, and that -the fluidized solid particles are kept in the same reactor. The present method enables continuous operation of the fluidized bed reactor without the need of recirculating externally heated or cooled solid bed particles and/or for special heat exchange equipment placed inside or enclosing the fluidized bed reactor. | 05-12-2011 |
20110293509 | WATER GAS SHIFT PROCESS - The invention provides a water gas shift process comprising a reaction stage. The reaction stage comprises (a) providing a gas mixture comprising CO, H | 12-01-2011 |
20110305627 | PROCESSES FOR HYDROGEN PRODUCTION AND CATALYSTS FOR USE THEREIN - This invention describes a process for producing hydrogen comprising: introducing a feedstream comprising a bio-based feedstock and water into a reformer and supplying heat to the reformer; contacting the feedstream with a steam reforming catalyst disposed within the reformer to form a reformate comprising hydrogen and carbon monoxide; recovering the reformate from the reformer; contacting the reformate with steam in the presence of a water-gas shift catalyst disposed within a water-gas shift reaction zone to form a water-gas shift product stream comprising hydrogen, and the water-gas shift product stream comprises hydrogen in a greater quantity than in the reformate; heating the feedstream by heat exchange contact of the feedstream with a product stream selected from the reformate, the water-gas shift product stream or combinations thereof to transfer heat from the product stream to the feedstream prior to introducing the feedstream into the reformer. | 12-15-2011 |
20120039795 | METHOD FOR HYDROGEN PRODUCTION USING ROTATING PACKED BED - The method in accordance with the present invention has steps of: preparing a hydrogen producing device with a high gravitational rotating packed bed, initiating the device, adjusting the temperature of the device, inputting a reagent gas and a liquid vaporized for mixing with the reagent gas into a reagent mixture, and passing the reagent mixture through the device to obtain hydrogen. | 02-16-2012 |
20120121500 | ULTRA HIGH TEMPERATURE SHIFT CATALYST WITH LOW METHANATION - A water gas shift catalyst for use at temperatures above about 450° C. up to about 900° C. or so comprising rhenium deposited on a support, preferably without a precious metal, wherein the support is prepared from a high surface area material, such as a mixed metal oxide, particularly a mixture of zirconia and ceria, to which may be added one or more of a high surface area transitional alumina, an alkali or alkaline earth metal dopant and/or an additional dopant selected from Ga, Nd, Pr, W, Ge, Fe, oxides thereof and mixtures thereof. | 05-17-2012 |
20120128579 | PROCESS TO PREPARE A HYDROGEN RICH GAS MIXTURE - The invention is directed to a process to prepare a hydrogen rich gas mixture from a solid sulphur- and halogen-containing carbonaceous feedstock. The process involves the following steps. Step (a): gasification of the solid carbonaceous feedstock with an oxygen-containing gas to obtain a gas mixture comprising halogen compounds, sulphur compounds, hydrogen and at least 50 vol. % carbon monoxide, on a dry basis. Step (b): contacting the gas mixture with a quench gas or quench liquid to reduce the temperature of the gas mixture to below 900° C. Step (c) contacting the gas mixture with water having a temperature of between 150 and 250° C. to obtain a gas mixture comprising between 50 and 1000 ppm halogen and having a steam to carbon monoxide molar ratio of between 0.2:1 and 0.9:1. Step (d): subjecting the gas mixture obtained in step (c) to a water gas shift reaction wherein part or all of the carbon monoxide is converted with the steam to hydrogen and carbon dioxide in the presence of a catalyst as present in one fixed bed reactor or in a series of more than one fixed bed reactors and wherein the temperature of the gas mixture as it enters the reactor or reactors is between 190 and 230° C. Step (e): carbon dioxide and sulphur compounds are separated from the shifted gas mixture obtained in step (d) by contacting the shifted gas mixture with a solvent comprising dialkyl ethers of polyethylene glycol. | 05-24-2012 |
20120195824 | PROCESS TO PREPARE A DILUTED HYDROGEN GAS MIXTURE - Process to prepare a diluted hydrogen gas mixture starting from a gas mixture comprising hydrogen and carbon monoxide by (i) converting part of the carbon monoxide in said gas mixture to hydrogen and carbon dioxide by means of a catalysed water gas shift reaction to obtain a shifted gas and (ii) separating hydrogen from said shifted gas by means of a membrane to obtain the hydrogen comprising gas at the permeate side of the membrane and a carbon dioxide comprising gas at the retentate side of the membrane, wherein at the permeate side of the membrane a sweep gas is provided; (iii) cooling the carbon dioxide comprising gas to obtain liquid carbon dioxide and a gas mixture of non-condensable gasses and (iv) separating the liquid carbon dioxide from the non-condensable gasses; wherein the non-condensable gasses are fed into the hydrogen comprising gas. | 08-02-2012 |
20130028834 | PROCESS FOR THE GASIFICATION OF HEAVY RESIDUAL OIL WITH PARTICULATE COKE FROM A DELAYED COKING UNIT - A process for the production of a synthesis gas containing hydrogen and carbon monoxide utilizes ground coke having a predetermined ash content in combination with a refinery residual hydrocarbon oil feedstream for gasification in the combustion chamber of a tubular wall membrane partial oxidation gasification reactor in the presence of a predetermined amount of oxygen; the coke and residual oil can be mixed to form a single feedstream or introduced into the reactor as separate feeds. Optionally, the product synthesis gas is introduced as the feedstream to a water-gas shift reactor to enhance the hydrogen content of the final product stream. | 01-31-2013 |
20130129610 | HYDROGEN/SYNGAS GENERATOR - The present invention relates to a compact, concentric auto thermal hydrogen/syngas generator for production of hydrogen/syngas without any external heating. Further, the auto thermal hydrogen/syngas generator of the present invention involves combination of reactions such as partial oxidation, steam reforming, dry reforming, auto thermal reforming, dry autothermal reforming, water gas shift, preferential oxidation or methanation that takes place without external heating, for converting air, steam and fuel into a reformate mainly containing CO, CO | 05-23-2013 |
20140105814 | METHOD FOR HYDROGEN PRODUCTION - The present invention relates to a method for hydrogen production and to a method of hydrogen and/or carbon dioxide production from syngas. The method comprises the steps of: (i) providing a gas stream comprising hydrogen and carbon monoxide, (ii) separating at least part of hydrogen from the stream yielding a hydrogen-depleted stream, (iii) subjecting the hydrogen-depleted stream to a water-gas shift reaction, and (iv) separating hydrogen from the stream resulting from step (iii). The method according to the invention improves the conversion of carbon monoxide in the water gas shift reaction and allows to increase the hydrogen production by 10-15% and to increase the overall energy efficiency of the system by 5-7%. The invention further relates to a plant for hydrogen and/or carbon dioxide production suitable for the method of the invention. | 04-17-2014 |
20180022605 | Operation Method for Hydrogen Production Apparatus, and Hydrogen Production Apparatus | 01-25-2018 |
423656000 | Utilizing metal oxide catalyst | 5 |
20110081291 | MULTI WATER-GAS SHIFT MEMBRANE REACTOR FOR PRODUCING HIGH CONCENTRATION HYDROGEN AND METHOD FOR PRODUCING HYDROGEN USING THE SAME - Disclosed are a multi water-gas shift membrane reactor for producing high-concentration hydrogen and a method for producing hydrogen using the same. More specifically, disclosed are a multi water-gas shift membrane reactor wherein high-concentration carbon monoxide, obtained by dry-gasification performed by reacting dry bituminous coal with water and oxygen, reacts with water gas in the presence of catalysts in a single reactor, to produce hydrogen and carbon dioxide and separate highly pure hydrogen and carbon dioxide through a separation membrane arranged in a low region, and a method for producing hydrogen. | 04-07-2011 |
20110200520 | CALCIUM LOOPING PROCESS FOR HIGH PURITY HYDROGEN PRODUCTION INTEGRATED WITH CAPTURE OF CARBON DIOXIDE, SULFUR AND HALIDES - A process for producing hydrogen comprising the steps of: (i) gasifying a fuel into a raw synthesis gas comprising CO, hydrogen, steam, sulfur and halide contaminants in the form of H | 08-18-2011 |
20120020874 | PROCESS FOR PRODUCING HYDROGEN FROM METHANOL - The invention is directed to a process for producing hydrogen from methanol, comprising providing at least one flow of methanol and (1) catalytically converting part of the methanol or a fuel gas with air oxygen to carbon dioxide and water, while generating heat and (2) catalytically converting the methanol or the remaining part of the methanol at elevated temperature to hydrogen and carbon monoxide, followed by conversion of the carbon monoxide with water to hydrogen and carbon dioxide, wherein the heat generated in step (1) is sufficient to produce the elevated temperature required in step (2), wherein both steps (1) and (2) are carried out in a bed of sintered metal particles, the bed of sintered metal in step (2) having a surface that is catalytically active for the conversion of methanol to hydrogen, and wherein the beds of sintered metal particles are in heat exchanging relationship. | 01-26-2012 |
20120070367 | Process for the production of hydrogen from ethanol - Using the process described in the present invention, a gas is produced that is rich in methane and hydrogen and has a content of olefins below 1% v/v, which fully meets the necessary requirements for raw materials used for large-scale production of hydrogen or synthesis gas, in steam reforming units that already exist in a great many oil refineries and petrochemical units. Starting from ethanol, steam, nickel-based catalysts and the use of appropriate conditions of temperature, and H | 03-22-2012 |
20130309165 | METAL STRUCTURE CATALYST AND PREPARATION METHOD THEREOF - Provided are a metal structure catalyst and a method of preparing the same. Particularly, the method includes forming a metal precipitate on a metal support by contact of a mixed solution including a precursor of a metal catalyst and a precipitating agent with the metal support, and forming metal particles by thermally treating and reducing the metal precipitate formed on the metal support. The metal structure catalyst includes a metal support, a metal oxide layer formed on the metal support, and metal nanoparticles formed on the metal oxide layer. In addition, the metal nanoparticles are uniform and have enhanced binding strength. | 11-21-2013 |