公开(公告)号：EP2249948A1

公开(公告)日：2010-11-17

申请号：EP09716244.0

申请日：2009-02-17

申请人： Uhde GmbH

发明人： VON TROTHA, Thilo ,  LIU, Vincent ,  WYSCHOFSKY, Michael

IPC分类号： B01D53/047 ,  C01B3/56

CPC分类号： B01D53/0476 ,  B01D2256/16 ,  B01D2257/504 ,  C01B3/34 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/043 ,  C01B2203/044 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/0495 ,  C01B2203/0838 ,  C01B2203/0883 ,  C01B2203/148 ,  C01B2203/84 ,  Y02C10/08 ,  Y02P20/152 ,  Y02P30/30

摘要： The invention relates to a method for purifying synthesis gas in a pressure swing adsorption installation (9) which is desorbed with a vacuum that is generated via a so-called ejector (12) operated with vapor, said vapor being generated in a heat exchanger 6, (7) that uses the heat in the waste gas duct or in the useful gas duct for vapor generation. The pressure swing installation is advantageously operated alternating between adsorption at excessive pressure, pressure swing desorption and vacuum desorption and the gas desorbed by the ejector is cooled in a cooler (13) so that the vapor contained therein can be condensed and withdrawn or is advantageously returned to the starting gas for synthesis gas generation and the foreign gas (9b) desorbed from the pressure swing installation, which contains at least some not-consumed heating gas, is returned to the heating gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate reservoir (11) and is applied to the pressure swing adsorption unit when it is in the cycle of vacuum desorption. The invention also relates to a device for carrying out said method.

公开(公告)号：EP1648817B1

公开(公告)日：2006-10-25

申请号：EP04763481.1

申请日：2004-07-24

申请人： Uhde GmbH

发明人： BLUMENFELD, Michael ,  LIU, Vincent ,  MIELKE, Bernd ,  MICHEL, Marcus

IPC分类号： C01B3/38 ,  C01B3/48 ,  C01B3/56 ,  B01D53/047

CPC分类号： B01D53/04 ,  B01D53/047 ,  B01D2256/16 ,  B01D2257/7022 ,  C01B3/384 ,  C01B3/48 ,  C01B3/56 ,  C01B2203/00 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0288 ,  C01B2203/0415 ,  C01B2203/043 ,  C01B2203/0475 ,  C01B2203/0811 ,  C01B2203/0822 ,  C01B2203/0827 ,  C01B2203/1241 ,  C01B2203/143 ,  C01B2203/146 ,  Y02C10/08 ,  Y02C20/20 ,  Y02E60/324 ,  Y02E60/364 ,  Y02P20/128 ,  Y02P20/152

摘要： The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow (8) by gas washing (7), and the washed hydrogen-rich gas flow (10) is subsequently divided in a pressure-swing adsorption system (11) into a product gas flow (12) made of hydrogen and a waste gas flow (13). The waste gas flow (13) is introduced with hydrogen (14), which is separated from the gas flow (10) after gas washing, into a reformer (4) which is essentially a carbon-free combustible gas, and is combusted there. The invention also relates to a system for carrying out said method.

公开(公告)号：EP1648817A1

公开(公告)日：2006-04-26

申请号：EP04763481.1

申请日：2004-07-24

申请人： Uhde GmbH

发明人： BLUMENFELD, Michael ,  LIU, Vincent ,  MIELKE, Bernd ,  MICHEL, Marcus

IPC分类号： C01B3/38 ,  C01B3/48 ,  C01B3/56 ,  B01D53/047

CPC分类号： B01D53/04 ,  B01D53/047 ,  B01D2256/16 ,  B01D2257/7022 ,  C01B3/384 ,  C01B3/48 ,  C01B3/56 ,  C01B2203/00 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0288 ,  C01B2203/0415 ,  C01B2203/043 ,  C01B2203/0475 ,  C01B2203/0811 ,  C01B2203/0822 ,  C01B2203/0827 ,  C01B2203/1241 ,  C01B2203/143 ,  C01B2203/146 ,  Y02C10/08 ,  Y02C20/20 ,  Y02E60/324 ,  Y02E60/364 ,  Y02P20/128 ,  Y02P20/152

摘要： The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow (8) by gas washing (7), and the washed hydrogen-rich gas flow (10) is subsequently divided in a pressure-swing adsorption system (11) into a product gas flow (12) made of hydrogen and a waste gas flow (13). The waste gas flow (13) is introduced with hydrogen (14), which is separated from the gas flow (10) after gas washing, into a reformer (4) which is essentially a carbon-free combustible gas, and is combusted there. The invention also relates to a system for carrying out said method.

摘要翻译： 本发明涉及从含有甲烷，特别是天然气的气体中提取氢的方法。 包含在气体中的碳氢化合物在重整器（4）中通过蒸汽催化分解以形成氢气，一氧化碳和二氧化碳。 所获得的一氧化碳与蒸汽的催化转化发生在下游转化步骤中以形成一氧化碳和水。 通过气体洗涤（7）从转化气流（8）中除去二氧化碳，然后将经洗涤的富氢气流（10）随后在变压吸附系统（11）中分成产品气流（12） ）由氢气和废气流（13）制成。 废气流（13）在气体洗涤后与从气流（10）分离的氢气（14）一起引入基本上为无碳可燃气体的重整器（4）中，并在那里燃烧。 本发明还涉及用于执行所述方法的系统。

公开(公告)号：EP1372821B1

公开(公告)日：2006-01-18

申请号：EP02740447.4

申请日：2002-04-05

申请人： Uhde GmbH

发明人： WYSCHOFSKY, Michael ,  LIU, Vincent

IPC分类号： B01D53/14 ,  C01C1/04 ,  B01D53/22

CPC分类号： C01B3/501 ,  B01D53/1425 ,  B01D53/1493 ,  B01D53/229 ,  C01B3/025 ,  C01B3/52 ,  C01B2203/0405 ,  C01B2203/0415 ,  C01B2203/0465 ,  C01B2203/048 ,  C01B2203/146 ,  C01C1/0476 ,  Y02C20/20 ,  Y02P20/129 ,  Y02P20/52

摘要： The invention relates to a method for the absorptive outward transfer of NH3 and CH4 out of a gas under high pressure, which at least contains NH3, H2, N2 and CH4, by using a high-boiling, physically active and regenerable solvent, which contains homologues of alkylene glycol-alkyl-ether and can also contain water. According to the invention, the absorbed constituents NH3, H2, N2 and CH4 can be expelled once again from the loaded solvent in at least two additional method steps at different pressures, whereby at least one NH3-rich and at least one CH4-rich gas fraction are withdrawn from the solvent. The method is particularly suited as part of a system for producing ammonia.

公开(公告)号：EP1372821A2

公开(公告)日：2004-01-02

申请号：EP02740447.4

申请日：2002-04-05

申请人： Uhde GmbH

发明人： WYSCHOFSKY, Michael ,  LIU, Vincent

IPC分类号： B01D53/14 ,  C01C1/04 ,  B01D53/22

CPC分类号： C01B3/501 ,  B01D53/1425 ,  B01D53/1493 ,  B01D53/229 ,  C01B3/025 ,  C01B3/52 ,  C01B2203/0405 ,  C01B2203/0415 ,  C01B2203/0465 ,  C01B2203/048 ,  C01B2203/146 ,  C01C1/0476 ,  Y02C20/20 ,  Y02P20/129 ,  Y02P20/52

摘要： The invention relates to a method for the absorptive outward transfer of NH3 and CH4 out of a gas under high pressure, which at least contains NH3, H2, N2 and CH4, by using a high-boiling, physically active and regenerable solvent, which contains homologues of alkylene glycol-alkyl-ether and can also contain water. According to the invention, the absorbed constituents NH3, H2, N2 and CH4 can be expelled once again from the loaded solvent in at least two additional method steps at different pressures, whereby at least one NH3-rich and at least one CH4-rich gas fraction are withdrawn from the solvent. The method is particularly suited as part of a system for producing ammonia.