Purifiers Patents (Class 48/128)
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Patent number: 11680474Abstract: A fracturing apparatus may include a power supply platform; a gas turbine engine; a generator; and one or more rectifiers. At least two of the gas turbine engine, the generator, and the one or more rectifiers are arranged on the power supply platform. A first end of the generator is connected to the gas turbine engine. A second end of the generator is connected to the one or more rectifiers. The generator is configured to output a voltage to the one or more rectifiers.Type: GrantFiled: August 9, 2022Date of Patent: June 20, 2023Assignee: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.Inventors: Shuzhen Cui, Rikui Zhang, Dong Liu, Jifeng Zhong, Liang Lv, Xincheng Li, Sheng Chang, Chunqiang Lan, Jian Zhang, Xiaolei Ji, Huaizhi Zhang, Ruijie Du, Dawei Zhao, Shouzhe Li
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Patent number: 11535514Abstract: A method and system for an enhanced reforming process employing a pressure swing absorber. An off-gas from the pressure swing absorber is divided with a first portion sent back into a reforming reactor and a second portion sent to a heat generator for the reforming process. The first off-gas portion from the pressure swing absorber can be pressurized by a compressor and reintroduced into a fluidized bed reactor.Type: GrantFiled: February 23, 2021Date of Patent: December 27, 2022Assignee: GAS TECHNOLOGY INSTITUTEInventors: Jeffrey A. Mays, Megan Herrera
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Patent number: 11447389Abstract: A system for production of a synthesis gas, including: a synthesis gas generation reactor arranged for producing a first synthesis gas from a hydrocarbon feed stream; a post converter including a catalyst active for catalyzing steam methane reforming, methanation and reverse water gas shift reactions; the post converter including a conduit for supplying a CO2 rich gas stream into a mixing zone of the post converter, where the CO2 rich gas stream in the conduit upstream the mixing zone is in heat exchange relationship with gas flowing over the catalyst downstream the mixing zone; a pipe combining the at least part of the first synthesis gas and the CO2 rich gas stream to a mixed gas, in a mixing zone being upstream the catalyst; wherein the post converter further includes an outlet for outletting a product synthesis gas from the post converter. Also, a corresponding process.Type: GrantFiled: November 15, 2018Date of Patent: September 20, 2022Assignee: HALDOR TOPSØE A/SInventors: Peter Mølgaard Mortensen, Kim Aasberg-Petersen
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Patent number: 11141692Abstract: Hydrogen generation assemblies, hydrogen purification devices, and their components are disclosed. In some embodiments, the devices may include a permeate frame with a membrane support structure having first and second membrane support plates that are free from perforations and that include a plurality of microgrooves configured to provide flow channels for at least part of the permeate stream. In some embodiments, the assemblies may include a return conduit fluidly connecting a buffer tank and a reformate conduit, a return valve assembly configured to manage flow in the return conduit, and a control assembly configured to operate a fuel processing assembly between run and standby modes based, at least in part, on detected pressure in the buffer tank and configured to direct the return valve assembly to allow product hydrogen stream to flow from the buffer tank to the reformate conduit when the fuel processing assembly is in the standby mode.Type: GrantFiled: May 29, 2020Date of Patent: October 12, 2021Assignee: Element 1 CorpInventor: David J. Edlund
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Patent number: 10702827Abstract: Hydrogen generation assemblies, hydrogen purification devices, and their components are disclosed. In some embodiments, the devices may include a permeate frame with a membrane support structure having first and second membrane support plates that are free from perforations and that include a plurality of microgrooves configured to provide flow channels for at least part of the permeate stream. In some embodiments, the assemblies may include a return conduit fluidly connecting a buffer tank and a reformate conduit, a return valve assembly configured to manage flow in the return conduit, and a control assembly configured to operate a fuel processing assembly between run and standby modes based, at least in part, on detected pressure in the buffer tank and configured to direct the return valve assembly to allow product hydrogen stream to flow from the buffer tank to the reformate conduit when the fuel processing assembly is in the standby mode.Type: GrantFiled: December 19, 2018Date of Patent: July 7, 2020Assignee: Element 1 Corp.Inventor: David J. Edlund
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Patent number: 9856769Abstract: A gas separation process for treating exhaust gases from combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, while simultaneously flowing a second portion of the exhaust gas stream across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate/sweep gas back to the combustor.Type: GrantFiled: March 1, 2017Date of Patent: January 2, 2018Assignee: Membrane Technology and Research, inc.Inventors: Richard W Baker, Timothy C Merkel, Johannes G Wijmans
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Patent number: 9657941Abstract: The gasifier operates to mix a start up heat source with crude syngas combustion for driving gasification of waste. Combustion flue gas can be maintained above 650° C. until reaching a quench to prevent formation of dioxins. Excess heat is liberated through a heat recovery unit. The gasifier can operate in a batch mode to process small batches of waste efficiently for small installations, such as ships, apartment buildings, hospitals and residences.Type: GrantFiled: April 19, 2010Date of Patent: May 23, 2017Assignee: PROTERRGO INC.Inventors: Panayotis Tsantrizos, Stephan Lavigne
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Patent number: 9505076Abstract: A shielding gas filter assembly for a welding apparatus. The filter assembly includes a filter housing having a filter disposed therein. The filter assembly also includes a filter guard coupled to the filter housing and configured to receive shielding gas. The filter guard includes a tamper resistant portion configured to inhibit an object from contacting the filter when the object is inserted into the filter guard.Type: GrantFiled: January 25, 2012Date of Patent: November 29, 2016Assignee: ILLINOIS TOOL WORKS INC.Inventors: Thomas Don Lahti, Jeffery Ray Ihde, James Francis Rappl
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Patent number: 9028568Abstract: A system includes a carbon dioxide treatment system that includes a catalyst configured to treat carbon dioxide to produce a treated carbon dioxide. The system also includes a gasifier injector configured to inject the treated carbon dioxide, a fuel, and oxygen into a gasifier. The gasifier injector may be coupled to or located inside the gasifier.Type: GrantFiled: September 2, 2010Date of Patent: May 12, 2015Assignee: General Electric CompanyInventors: Raymond Douglas Steele, Pradeep Stanley Thacker
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Patent number: 9000056Abstract: 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.Type: GrantFiled: September 14, 2010Date of Patent: April 7, 2015Assignee: Enn Science & Technology Development Co., Ltd.Inventors: Jicheng Bi, Rong Zhang, Yixin Chen, Zhiqiang Sun, Jinlai Li, Zhongxue Gan
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Publication number: 20150075072Abstract: Devices for a three-stage scrubbing system for treatment of hot crude gases and liquid slag by an entrained flow gasification. Crude gas and slag are conducted downward into a water bath in a central tube. The upper part of the central tube consists of a double-threaded tube screen welded in a gas-tight manner, in which water is injected directly as the first scrubbing and cooling stage in the interior thereof. In the water bath, a bubble column is formed, which simultaneously constitutes the second scrubbing and cooling stage. Surface bodies arranged in three layers increase the scrubbing effect. After leaving the bubble column, the crude gas is again sprayed with water in a cavity, wherein one or more nozzle rings are disposed. This forms the third scrubbing stage. The crude gas then leaves the quenching and scrubbing apparatus in steam-saturated form at 200-220° C. and is sent to further treatment.Type: ApplicationFiled: September 19, 2014Publication date: March 19, 2015Inventors: Frank HANNEMANN, André HERKLOTZ, Horst HOPPE, Tino JUST, Manfred SCHINGNITZ, Darek SCHMAUCH
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Publication number: 20150059246Abstract: A three-stage quenching and scrubbing system for treatment of hot crude gases and liquid slag after an entrained flow gasification. In the first primary stage, cooling and scrubbing water is injected such that slag can no longer adhere to the wall of the central tube and the conversion reaction of the carbon monoxide with water vapor to give hydrogen can proceed to close to the equilibrium. A secondary quenching and scrubbing stage takes the form of a bubble column, and further cooling and the deposition of coarse dust and slag are effected in a water bath. The rest of the treatment is through intensive spraying in a tertiary quenching and scrubbing the gas stage, nozzle rings for deposition of fine slag and partly of fine dust. All three quenching and scrubbing stages enable cooling of the crude gas down to the water vapor dew point determined by the plant pressure.Type: ApplicationFiled: September 2, 2014Publication date: March 5, 2015Inventors: Norbert FISCHER, Frank HANNEMANN, Tino JUST, Manfred SCHINGNITZ, Guido SCHULD
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Patent number: 8969422Abstract: 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.Type: GrantFiled: March 7, 2011Date of Patent: March 3, 2015Assignee: Quzhou City Guangyuan Domestic Garbage Liquefy Technology InstituteInventor: Kaigen Zhou
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Publication number: 20150033627Abstract: A multistage gas washing system is applied for dust separation from crude gases of entrained flow gasification of pulverized fuels under pressures up to 10 MPa and temperatures which are greater than the melting point of the fuel ash. A first stage comprises a modified quenching system and a downstream washing column, which operates as a bubble column. A second washing stage comprises one or more Venturi washers connected in series. A third washing stage comprises multiple high-pressure atomization units of washing water, a partial condenser for cooling the crude gas by 1 to 15° C. with condensate formation, and a separation column, which is equipped with washing surfaces and a plastic-coated demister.Type: ApplicationFiled: August 1, 2014Publication date: February 5, 2015Inventors: Frank HANNEMANN, Manfred SCHINGNITZ
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Patent number: 8900334Abstract: The goal of the invention consists in making available a method for supplying fuel to a pressurized gasification system, which ensures, in economically efficient manner, that the emission of pollutants from the coal transfer and the transport is minimized or completely avoided. This is achieved in that a gas that contains at least 10 ppm vol. CO is used for transfer and/or conveying, whereby a gas that contains oxygen is mixed into this gas, and that this gas mixture is heated to a temperature that oxidizes at least 10% of the pollutants contained in the gas.Type: GrantFiled: December 23, 2009Date of Patent: December 2, 2014Assignee: ThyssenKrupp UHDE GmbHInventors: Johannes Kowoll, Stefan Hamel, Michael Rieger
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Patent number: 8888873Abstract: A method for generating and purifying syngas and to an apparatus for generating and purifying syngas is presented.Type: GrantFiled: July 23, 2009Date of Patent: November 18, 2014Assignee: L'air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Natacha Haik-Beraud, Antoine Hernandez, Pascal Marty, Bernd Polster
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Publication number: 20140305043Abstract: A method of gasification of biomass using a gasification island. The gasification island includes: a biomass pre-treatment and storage unit, a biomass feeder, an external heat source, a gasifier, a crude syngas cooling unit, a crude syngas washing unit, a fresh syngas storage unit, and an ash and wastewater treatment unit. The method includes: pre-treating and storing biomass, gasifying the biomass in the gasifier, cooling a crude syngas, washing and removing dust from the crude syngas, and storing fresh syngas.Type: ApplicationFiled: June 26, 2014Publication date: October 16, 2014Inventors: Yanfeng ZHANG, Minggui XIA, Hongtao NIE, Wenyan LIU, Liang ZHANG
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Publication number: 20140305044Abstract: A method for cooling and washing biomass syngas, the method including the following steps: 1) introducing biomass syngas having a temperature of between 1000 and 1100° C., a dust content of less than 20 g/Nm3, and a tar content of less than 3 g/Nm3 to a quench tower for condensing a slag; 2) introducing the biomass syngas after slag condensation to a waste heat boiler for recovering waste heat and condensing a heavy tar in the syngas; 3) introducing the biomass syngas from the waste heat boiler to a scrubbing-cooling tower for removing dust and decreasing a temperature of the syngas; and 4) introducing the biomass syngas after dust removal and temperature decrease from the scrubbing-cooling tower to an electro-precipitator for further removal of the dust and the tar.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Inventors: Yanfeng ZHANG, Wenyan LIU, Minggui XIA, Liang ZHANG
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Publication number: 20140259924Abstract: Methods and systems for gasifier system are provided. The system includes a two-stage particulate separator having a side draw-off connector configured as a first virtual impactor, the first virtual impactor configured to separate a substantially particulate free flow of a reaction product from a particulate laden flow of the reaction product. The two-stage particulate separator also includes a transfer line coupled downstream of said draw-off connector, a second virtual impactor coupled downstream of the transfer line, and a quench chamber coupled downstream from the second virtual impactor, such that the quench chamber is configured to receive at least the particulate laden flow of the reaction product.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: GENERAL ELECTRIC COMPANYInventor: Thomas Frederick Leininger
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Publication number: 20140250785Abstract: A system is set forth for the exothermic generation of soot depleted syngas comprising (i) reacting a hydrocarbon-containing fuel with an oxygen containing gas in a first reactor to produce the syngas and byproducts comprising CO2, H2O and soot; and (ii) introducing the syngas and byproducts into a second reactor containing a non-carbonaceous material that traps the soot for a sufficient time such that the majority of the byproduct soot is gasified via reaction with the byproduct CO2 and/or H2O to produce a syngas stream that is depleted in the soot. The system is particularly suitable for the practice of heat exchange reforming therein a portion of the heat is recovered from the soot depleted syngas stream and used as at least a portion of the heat to facilitate the additional production of syngas via the (endothermic) catalytic reforming of natural gas and steam.Type: ApplicationFiled: May 23, 2014Publication date: September 11, 2014Inventors: William Robert Licht, Shankar Nataraj, Xiang-Dong Peng, John Michael Repasky
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Publication number: 20140250786Abstract: The present invention includes: a char feeding hopper body that feeds separated char toward a coal gasifier; a char communicating tube that communicates with a bottom portion of the char feeding hopper body and extends in a vertical axis direction; fluid gas feeding means that is provided at a bottom portion side of the char feeding hopper body and feeds fluid gas to an inside thereof; a radiation source section that emits ?-rays toward an inside of the char communicating tube in which a level of the char reaches a level H2 which is the same level as a level H1 of the char in the char feeding hopper as a result of feeding of the fluid gas; and a ?-ray detector that is provided along a vertical axis direction of the char communicating tube and detects the emitted ?-rays.Type: ApplicationFiled: August 10, 2012Publication date: September 11, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Koyama, Yasunari Shibata, Osamu Shinada, Katsuhiko Yokohama, Taketoshi Sakae, Koji Nishimura, Naoto Nakayama
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Publication number: 20140248492Abstract: The invention is directed to an adsorbent comprising: a) 20-30% porous carbon with incorporated organic nitrogen species; and b) 70-80% inorganic matter. The invention is directed to a method of making an adsorbent which comprises: a) thermally drying dewatered sewage sludge to form granulated organic fertilizer; and b) pyrolyzing said the organic fertilizer at temperatures between 600 and 1000° C. The invention is additionally directed to the process of removing acidic gases from wet air streams comprising putting an adsorbent in contact with the wet air stream and allowing the adsorbent to adsorb the acidic gases.Type: ApplicationFiled: May 12, 2014Publication date: September 4, 2014Applicant: Research Foundation of the City University of New YorkInventors: Teresa J. Bandosz, Andriy Bahryeyev, David C. Locke
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Patent number: 8802052Abstract: 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.Type: GrantFiled: March 21, 2011Date of Patent: August 12, 2014Inventors: Wei-Hsin Chen, Yu-Jhih Syu
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Patent number: 8801813Abstract: A gasification apparatus for solid fuel, especially an apparatus for producing syngas by pressurized gasification of coal powder, including a gasification chamber (II) and a syngas cooling and purification chamber (III). The inner wall of the gasification chamber is a water-cooling wall (4). The inner side of the water-cooled wall is evenly coated with a layer of fire-resistant material (16). There is an annular cavity between the water-cooling wall of the gasification chamber and the furnace body. A syngas quencher, a vertical pipe (22), a gas distribution device (24), a defoaming device, and a dewatering and deashing device (21) are provided in the syngas cooling and purification chamber. The apparatus has a simple structure and is easy to operate. A high temperature gasification method for dry powder of carbonaceous material comprises spraying the combustible material and oxygen into the furnace and followed by ignition.Type: GrantFiled: December 25, 2009Date of Patent: August 12, 2014Assignee: Changzheng Engineering Co., Ltd.Inventors: Zhengtao Lu, Mingkun Wang, Congbin Jiang, Wei Xin, Ruiheng Gao, Honghai Li
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Publication number: 20140206778Abstract: A system and method for providing an integrated indirectly fired reactor and steam generator are disclosed. According to one embodiment, the reactor comprises an indirect heating zone heating water and generating steam, a mixing zone mixing feedstock and the steam and providing a mixture of the feedstock and the steam, and a reaction zone comprising a first reactor and a second reactor. The first reactor converts the mixture to a first syngas at a first temperature. The second reactor converts the first syngas to a second syngas at a second temperature, the second temperature being higher than the first temperature.Type: ApplicationFiled: March 19, 2014Publication date: July 24, 2014Applicant: Enventix, Inc.Inventor: Abdelmonem Hussein Alyaser
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Patent number: 8784516Abstract: This invention relates to a process for the production of hydrogen from a hydrocarbon feedstock and water vapor comprising: A stage for the production of a synthetic gas in a vapor reforming unit of the hydrocarbon feedstock in the presence of water vapor, with a fuel that provides the heat that is necessary to the reaction, A stage for conversion to vapor of the synthetic gas that is obtained in the preceding stage producing a hydrogen stream that contains methane and carbon dioxide, A stage for recovering carbon dioxide that is present in the stream that is obtained in the stage for conversion to vapor, making it possible to separate the carbon dioxide from the hydrogen stream, A stage for recovery and recycling to the vapor reforming stage of impurities that are present in the hydrogen stream, comprising a decompression phase.Type: GrantFiled: July 21, 2011Date of Patent: July 22, 2014Assignee: IFP Energies NouvellesInventors: Beatrice Fischer, Fabrice Giroudiere, Jean-Louis Ambrosino, Michel Thomas
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Publication number: 20140190074Abstract: A method for treating coal includes drying coal in an initial drying step. The dried coal is pyrolyzed in a pyrolysis step to form coal char and evolved gases. The coal char is eventually cooled and blended. The evolved gases are condensed in at least two, preferably three or more, distinct zones at different temperatures to condense coal-derived liquids (CDLs) from the evolved coal gas. Noncondensable gases may be returned to the pyrolysis chamber as a heat-laden sweep gas, or further processed as a fuel stream. The CDLs may optionally be centrifuged and/or filtered or otherwise separated from remaining particulate coal sludge. The sludge may be combined with coal char, optionally for briquetting; while the CDLs are stored. Precise control of the condensing zone temperatures allows control of the amount and consistency of the condensate fractions collected.Type: ApplicationFiled: January 9, 2014Publication date: July 10, 2014Applicant: C2O Technologies, LLCInventors: Franklin G. Rinker, Timothy J. Kuhn
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Patent number: 8741181Abstract: This invention relates to a method and apparatus for treating a raw product stream (raw synthesis gas/raw syngas) generated by underground coal gasification (UCG). In one aspect, the invention concerns a method and apparatus for cooling and initial cleaning of raw syngas gas, so that the treated UCG product stream is suitable for downstream applications such as for energy or chemical production. In another aspect, the invention concerns a method and apparatus for isolating, treating and handling a raw UCG product stream that is generated either when igniting or decommissioning an underground coal gasifier and, due to its consistency, is generally unsuitable for energy or chemical production.Type: GrantFiled: December 23, 2011Date of Patent: June 3, 2014Assignee: Linc Energy LtdInventors: Grant Bollaert, Ernest Du Toit
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Patent number: 8728181Abstract: The inventive stage system for producing hydrogen consists of at least two upstream/downstream stages, respectively, each of which comprises, optionally, a catalytic reactor (C1 to C5) followed by a separator comprising a space (E1 to E4) for circulation of a gaseous mixture contacting at least one oxygen extracting membrane and a hydrogen collecting space, wherein the reactor (C1) of the upstream stage is connected to a reaction gaseous mixture source, the circulation stage (E1) of the upstream stage separator is connected to the reactor (C2) of the downstream stage and the spaces for extracting/collecting oxygen from two separators are connected to a hydrogen collecting circuit (TC, 8) which is common for two stages.Type: GrantFiled: January 19, 2011Date of Patent: May 20, 2014Assignee: Compagnie Europeenne des Technologies de l'Hydrogene (C.E.T.H.)Inventors: Eric Gernot, Arnaud Deschamps
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Patent number: 8722003Abstract: A system and method of capturing carbon dioxide from a flow of raw synthesis gas generated in a gasification system are provided. The carbon capture system includes an acid gas removal subsystem configured to generate a flow of reduced acid gas content syngas, a flow of hydrogen sulfide (H2S) lean gas, and a first flow of H2S-rich gas from a stream of particulate-free raw syngas, an H2S selective membrane separator, said H2S selective membrane separator configured to separate the flow of H2S-lean gas from the AGR into a second flow of H2S-rich gas and a flow of CO2 gas, and a sulfur recovery unit (SRU) coupled in flow communication with said H2S membrane separator downstream of said membrane separator, said SRU configured to generate a flow of elemental sulfur and a flow of tail gas from the first flow of H2S-rich gas and the second flow of H2S-rich gas.Type: GrantFiled: February 13, 2013Date of Patent: May 13, 2014Assignee: General Electric CompanyInventors: Aaron John Avagliano, John Saunders Stevenson
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Publication number: 20140127105Abstract: In accordance with one aspect, the present invention provides a composition which contains the amino-siloxane structures I, or III, as described herein. The composition is useful for the capture of carbon dioxide from process streams. In addition, the present invention provides methods of preparing the amino-siloxane composition. Another aspect of the present invention provides methods for reducing the amount of carbon dioxide in a process stream employing the amino-siloxane compositions of the invention, as species which react with carbon dioxide to form an adduct with carbon dioxide.Type: ApplicationFiled: January 13, 2014Publication date: May 8, 2014Applicant: General Electric CompanyInventors: Robert James Perry, Michael Joseph O'Brien
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Publication number: 20140093446Abstract: Methods, systems, and/or devices for synthesis gas recapture are provided, which may include methods, systems, and/or devices for filtering a synthesis gas stream. In some cases, tars, particulates, water, and/or heat may be removed from the synthesis gas stream through the filtering of the synthesis gas stream. The filtered synthesis gas stream may then be captured and/or utilized in a variety of different ways. Some embodiments utilizing a C—O—H compound to filter a synthesis gas stream. In some embodiments, the C—O—H compound utilized to filter the synthesis gas stream may be utilized to produce additional synthesis gas. The additional synthesis gas may be filtered by additional C—O—H compound.Type: ApplicationFiled: March 13, 2013Publication date: April 3, 2014Applicant: Proton Power, Inc.Inventor: Proton Power, Inc.
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Patent number: 8685148Abstract: The present invention relates to a process and a plant for the treatment of the vented gas mixture from a deaerator of a steam production process associated with a hydrocarbon-reforming syngas production process.Type: GrantFiled: December 17, 2009Date of Patent: April 1, 2014Assignee: L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Pascal Marty, Marie-Pascal Victor, Alain Briglia
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Publication number: 20140069011Abstract: Disclosed are a hydrogen sulfide and carbonyl sulfide removal apparatus using microwave plasma and a method thereof. More particularly, in the apparatus and the method, poisonous gases, such as hydrogen sulfide (H2S) and carbonyl sulfide (COS), contained in natural gas, refined crude oil refinery gas, gasified synthetic gas, etc. are removed by using microwave plasma, and elemental sulfur and hydrogen are generated from the gases.Type: ApplicationFiled: October 24, 2013Publication date: March 13, 2014Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sang Jun Yoon, Jae Goo Lee, Yong Ku Kim
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Patent number: 8636828Abstract: Hydrogen-producing fuel processing systems, hydrogen purification membranes, hydrogen purification devices, fuel processing and fuel cell systems that include hydrogen purification devices, and methods for operating the same. In some embodiments, operation of the fuel processing system is initiated by heating at least the reforming region of the fuel processing system to at least a selected hydrogen-producing operating temperature. In some embodiments, an electric heater is utilized to perform this initial heating. In some embodiments, use of the electric heater is discontinued after startup, and a burner or other combustion-based heating assembly combusts a fuel to heat at least the hydrogen producing region, such as due to the reforming region utilizing an endothermic catalytic reaction to produce hydrogen gas.Type: GrantFiled: August 29, 2012Date of Patent: January 28, 2014Assignee: DCNS SAInventors: David J. Edlund, William A. Pledger, R. Todd Studebaker
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Patent number: 8617265Abstract: A method and apparatus for generation of hydrogen. The apparatus includes a hydrogen reactor chamber (99) and a plurality of catalysts within the chamber (99) forming distinct zones or portions (200, 202, and 204), each zone or portion comprising a distinct catalyst or combination thereof. The plurality of catalysts include at least one of a high-activity steam reformation catalyst, coke resistant steam reformation catalyst and steam reformation catalyst that promotes a water gas shift reaction.Type: GrantFiled: April 12, 2005Date of Patent: December 31, 2013Assignee: Intelligent Energy, Inc.Inventor: Anand Chellappa
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Publication number: 20130320258Abstract: The use of a composition that includes a metal salt and an oil soluble amine formaldehyde reaction product scavenges H2S that is present in aqueous fluids (e.g. produced water liquid streams), natural gas and in oil and mixtures thereof (e.g. mixed production streams that contain all three phases) better than either component when used alone. The resulting scavenger combination significantly increases the reaction rate and the overall scavenging efficiency, i.e. capacity over each component when used alone, in the same total amount. Non-limiting examples of the metal salt include zinc or iron carboxylates, and a non-limiting example of an oil soluble amine formaldehyde reaction product is the reaction product of dibutylamine with formaldehyde.Type: ApplicationFiled: May 22, 2013Publication date: December 5, 2013Applicant: Baker Hughes IncorporatedInventors: Scott E. Lehrer, Sunder Ramachandran, Vladimir Jovancicevic
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Publication number: 20130291437Abstract: The present invention relates to a method and apparatus (10) for use in rarefying a syngas so as to improve a calorific value of the syngas through the reduction of a concentration of tar from the syngas. The apparatus (10) comprises a gasification/pyrolysis means (12) such as a kiln (11), for generation of a flow of syngas from a raw material, and a cracking means (14). The cracking means (14) comprising a body (42) having an insulated internal volume (44) adapted to hold a heated bed of char. The flow of syngas from the kiln (11) is directed through the cracking means (14) where it comes into contact with the heated bed of char. Heavy long-chained carbon based molecules within the syngas undergo a cracking reaction and are broken into constituent lighter carbon based molecules. The method and apparatus of the present invention provides a rarefied output flow of syngas having an improved calorific quality and a substantially reduced concentration of tar.Type: ApplicationFiled: May 13, 2011Publication date: November 7, 2013Applicant: ANSAC PTY LTDInventors: Michael Joseph Martella, Dongke Zhang
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Patent number: 8551416Abstract: A method and system for recovering CO2 from gasification gas, prevents the recovered CO2 from being contaminated with COS, without repeating cooling and heating operations and without increasing the steam consumption. Gasification gas being produced in a gasifier 10 and containing CO, CO2, COS and H2S is subjected to dust removal in a scrubber 20. Then, a part of the gas is subjected to a CO shift reaction, in which CO is converted into CO2, in a CO shift reactor 30. In one embodiment, part of the gasification gas is not subjected to the CO shift reaction by means of a bypass 34, and is mixed with the gas after the CO shift reaction. Thereby, the temperature of the mixture gas is set at 180° C. to 300° C., and COS in the mixture gas is converted into H2S in a COS converter 40.Type: GrantFiled: October 22, 2009Date of Patent: October 8, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Fumiaki Sato, Shinji Ogino, Motonari Aihara, Yudai Kato, Kazuo Ishida, Seiji Kakesako
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Publication number: 20130255153Abstract: Disclosed is a method of gas purification, a coal gasification plant, and a shift catalyst, each of which enables an inexpensive treatment of condensed water derived from steam used in a CO shift reaction. A CO shift reaction is performed using a shift catalyst less causing side reactions (e.g., a P—Mo—Ni-supported shift catalyst), and condensed water derived from steam used in the CO shift reaction is reused or treated. The method includes a cleaning step of removing water-soluble substances from a gasified gas containing CO and H2S; a CO shift step of allowing CO in a gas after the cleaning step to react with steam by the catalysis of the shift catalyst to convert CO into CO2 and H2; and a recovery step of removing CO2 and H2S from a gas after the CO shift step, in which post-shift condensed water formed after the CO shift step is recycled.Type: ApplicationFiled: February 20, 2013Publication date: October 3, 2013Applicant: HITACHI, LTD.Inventors: Takashi SASAKI, Tomoko AKIYAMA
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Patent number: 8535613Abstract: A method and an apparatus for separating acidic gases from syngas are capable of reducing the necessary power and are capable of obtaining high-purity CO2 at a high recovery ratio. A purification method and a purification system of coal gasification gas using the method and the apparatus are also provided. An apparatus for separating acidic gases from syngas containing acidic gases of C02 and H2S, in order, converts CO in the syngas into C02, removes H2S contained in the syngas by using a solvent for physical absorption, removes physical solvent from the syngas followed by heating in a heat exchanger using the converted syngas heat, and removes C02 from the heated syngas by using a solvent for chemical absorption.Type: GrantFiled: October 22, 2009Date of Patent: September 17, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shinji Ogino, Fumiaki Sato, Yudai Kato, Motonari Aihara, Kazuo Ishida, Seiji Kakesako
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Patent number: 8512444Abstract: With a method and a system for treatment of a hot crude gas generated by an entrained flow gasification system, removal of the compounds that contain sulfur and carbon is supposed to be undertaken in such a manner that hot gas is made available for further use. This is achieved in that a desulfurization (7) follows the gasifier (2), in series, in the flow path of the hot gas, followed by a solid separation (8, 9), whereby behind the solid separation (8, 9), a partial stream (13) of the gas is provided downstream by way of a water quench (14), a Venturi scrubber (15), a crude gas cooler (16), as well as an H2O separation (17) and a compressor (18), the flow path (19) of which is passed back, cooled, into the circuit, behind the gasification (2) and ahead of the desulfurization system.Type: GrantFiled: September 9, 2009Date of Patent: August 20, 2013Assignee: ThyssenKrupp Uhde GmbHInventors: Ralf Abraham, Michael Rieger, Domenico Pavone, Olaf Von Morstein
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Publication number: 20130205665Abstract: A combustible gas enrichment system includes an adsorption unit charged therein with an adsorbent for selectively adsorbing a combustible gas, a source gas feeding means capable of feeding source gas containing the combustible gas into the adsorption unit from the outside, a suctioning means capable of suctioning the gas from the inside of the adsorption unit and a controlling means for executing an adsorption process for feeding the source gas into the adsorption unit for adsorption of the combustible gas to the adsorbent and a desorption process for desorbing the combustible gas from the adsorbent under the suction force of the suctioning means after the adsorption process and taking the desorbed combustible gas to the outside. The controlling means operates the suctioning means such that the suction force of the suctioning means when no desorption process is effected is smaller than the suction force when the desorption process is effected.Type: ApplicationFiled: January 24, 2011Publication date: August 15, 2013Applicant: OSAKA GAS CO., LTD.Inventors: Hajime Morioka, Takahisa Utaki
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Patent number: 8506917Abstract: In a circulating fluidized-bed gasification system, an ammonia-off gas 30 from an ammonia remover 25 is fed to a catalytic denitrator 15 with a flow rate regulated such that a molar ratio of the ammonia in the ammonia off-gas 30 from the ammonia recover 25 to nitrogen oxides in an exhaust gas 6 from a combustion furnace 1 is kept within a setting range, and a reminder of the ammonia off-gas 30 is fed to the combustion furnace 1.Type: GrantFiled: October 14, 2010Date of Patent: August 13, 2013Assignee: IHI CorporationInventors: Hiroaki Ohara, Koki Hamada
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Patent number: 8475546Abstract: A reactor vessel includes a dipleg connecting a tubular syngas collection chamber and a quench chamber. The collection chamber connects to the dipleg via a slag tap having a frusto-conical part starting from the lower end of the collection chamber and diverging to an opening connected to an interior of the dipleg. The slag tap has a first tubular part connected to the opening of the frusto-conical part and extending in the direction of the dipleg. A second tubular part connects to the frusto-conical part or to the tubular part and extends toward the dipleg. The second tubular part is spaced away from the dipleg to provide an annular space having a discharge conduit. The discharge conduit has a discharge opening located to direct water along the inner wall of the dipleg. At least half of the vertical length of the first tubular part extends below the discharge opening.Type: GrantFiled: December 2, 2009Date of Patent: July 2, 2013Assignee: Shell Oil CompanyInventors: Benedict Ignatius Maria Ten Bosch, Thomas Ebner, Wouter Koen Harteveld, Hans Joachim Heinen, Manfred Heinrich Schmitz-Goeb
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Publication number: 20130152470Abstract: A system and method of reducing NOx emissions from a lean burn combustion source is provided. The system includes at least one injection lance having a elongated shaft with distal and proximal ends, a metering valve positioned at the distal end, an atomization chamber positioned between the metering valve and the distal end, a storage chamber for containing a reagent fluidly connected to the metering valve, an injection tip positioned at the proximal end for delivering the reagent, and at least one air port for supplying air to the atomization chamber. The injection lance is positioned in the combustion source, and the reagent is supplied from the storage chamber to the injection lance at an inlet pressure. The reagent is then injected into the combustion source via the injection lance, wherein a temperature of the reagent prior to the injection is maintained below a hydrolysis temperature of the reagent.Type: ApplicationFiled: February 14, 2013Publication date: June 20, 2013Inventors: Scott H. Lindemann, Bruce E. Hartel, John N. Dale, Jeffrey Michael Broderick, James M. Valentine
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Patent number: 8425636Abstract: In certain embodiments, a system includes a gasification system configured to output grey water. The system also includes a grey water zero liquid discharge (ZLD) system configured to receive the grey water and to generate a first stream of distillate. The grey water ZLD system comprises an ammonia stripping system. An amount of water into and out of the grey water ZLD system is approximately equal.Type: GrantFiled: November 12, 2009Date of Patent: April 23, 2013Assignee: General Electric CompanyInventors: Sampath K. Bommareddy, Dinh-Cuong Vuong, James Scott Kain, Anil Dhansukh Amlani, Robert Henry Weed
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Method and system for wasteless processing and complete utilization of municipal and domestic wastes
Patent number: 8419902Abstract: Proposed are a system and method for wasteless pyrolytic processing and complete utilization of municipal and domestic wastes. The wastes are sequentially passed through units of sorting, grinding, drying, accumulating, and sending to a pyrolysis reactor for pyrolytic treatment. The syngas produced in the pyrolysis is passed through dry cleaning, dust catching, a first wet cleaning with water, a second wet cleaning with alkali, and a floatation unit for separation of water which is purified to an extent sufficient for technical use. The purified syngas is also passed through an absorber and is then used as a working medium for a power generation unit such as a gas turbine co-generator that generates electricity. Solid products of the pyrolysis reaction, such as coke, are returned to the reactor for afterburning, and the heat of the reaction can be utilized in a dryer, or the like.Type: GrantFiled: May 19, 2009Date of Patent: April 16, 2013Assignee: Greenlight Energy Solutions, LLCInventors: Arkady Feerer, Marat Hasbulatovich Kulakov, Denis Zagorsky -
Patent number: 8404007Abstract: 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 (05) that is cylindrically shaped and includes a first flow passage; a second vaporizer (06) that is cylindrically shaped and includes a second flow passage; a duct (027) that connects an outlet of the first flow passage to an inlet of the second flow passage; a raw-material mixing portion (028) formed at a certain point of the duct. The first vaporizer and the second vaporizer are concentrically disposed. An interstice between the first vaporizer and the second vaporizer serves as a heating-gas flow passage (024).Type: GrantFiled: November 26, 2007Date of Patent: March 26, 2013Assignee: JX Nippon Oil & Energy CorporationInventors: Naohiko Matsuda, Katsuki Yagi, Keiji Tanizaki, Akira Goto
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Patent number: 8398729Abstract: Methods and systems for a gasifier having a partial moderator bypass are provided. The gasifier includes a partial oxidation reactor including an inlet and an outlet and a primary reaction zone extending therebetween, the partial oxidation reactor configured to direct a flow of products of partial oxidation including fuel gases, gaseous byproducts of partial oxidation, and unburned carbon, and a secondary reaction chamber coupled in flow communication with the partial oxidation reactor, the secondary reaction chamber is configured to mix a flow of moderator with the flow of gaseous byproducts of partial oxidation and unburned carbon such that a concentration of fuel gases is increased.Type: GrantFiled: August 25, 2011Date of Patent: March 19, 2013Assignee: General Electric CompanyInventor: Paul Steven Wallace