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91. 发明申请

US20180080709A1 SYSTEM AND METHOD FOR CRYOGENIC PURIFICATION OF A FEED STREAM COMPRISING HYDROGEN, METHANE, NITROGEN AND ARGON 有权
公开(公告)号：US20180080709A1
公开(公告)日：2018-03-22
申请号：US15271559
申请日：2016-09-21
申请人： Henry E. Howard
发明人： Henry E. Howard
IPC分类号： F25J3/02 , F25J5/00
CPC分类号： F25J3/0223 , C01B3/506 , C01B2203/046 , C01B2203/068 , C01C1/0405 , F25J1/0015 , F25J1/0035 , F25J1/0037 , F25J1/004 , F25J1/0208 , F25J1/0237 , F25J1/0264 , F25J1/0288 , F25J3/0219 , F25J3/0233 , F25J3/0257 , F25J3/0276 , F25J3/0285 , F25J5/005 , F25J2200/30 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2200/94 , F25J2200/96 , F25J2205/02 , F25J2205/30 , F25J2205/60 , F25J2210/04 , F25J2210/20 , F25J2210/42 , F25J2210/58 , F25J2210/62 , F25J2215/04 , F25J2215/20 , F25J2215/42 , F25J2215/58 , F25J2215/60 , F25J2220/02 , F25J2230/08 , F25J2230/30 , F25J2235/60 , F25J2240/12 , F25J2240/40 , F25J2245/02 , F25J2260/20 , F25J2270/02 , F25J2270/06 , F25J2270/12 , F25J2270/16 , F25J2270/42 , F25J2270/90 , F25J2270/904
摘要： A system and method for cryogenic purification of a hydrogen, nitrogen, methane and argon containing feed stream to produce a methane free, hydrogen and nitrogen containing synthesis gas and a methane rich fuel gas, as well as to recover an argon product stream, excess hydrogen, and excess nitrogen is provided. The disclosed system and method are particularly useful as an integrated cryogenic purifier in an ammonia synthesis process in an ammonia plant. The excess nitrogen is a nitrogen stream substantially free of methane and hydrogen that can be used in other parts of the plant, recovered as a gaseous nitrogen product and/or liquefied to produce a liquid nitrogen product.

92. 发明授权

US09534837B2 Nitrogen removal with ISO-pressure open refrigeration natural gas liquids recovery 有权
标题翻译：氮气清除采用ISO压力开放制冷天然气液体回收
公开(公告)号：US09534837B2
公开(公告)日：2017-01-03
申请号：US14751562
申请日：2015-06-26
申请人： Lummus Technology Inc.
发明人： Michael Malsam
IPC分类号： F25J3/00 , F25J3/02 , C10L3/10 , F25J1/00
CPC分类号： F25J3/0242 , C10L3/10 , C10L3/105 , F25J1/0022 , F25J3/0209 , F25J3/0214 , F25J3/0233 , F25J3/0238 , F25J3/0247 , F25J3/0257 , F25J2200/04 , F25J2200/40 , F25J2200/78 , F25J2200/94 , F25J2205/40 , F25J2205/80 , F25J2215/02 , F25J2215/42 , F25J2215/60 , F25J2215/62 , F25J2220/62 , F25J2230/60 , F25J2245/02 , F25J2245/42 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2270/88
摘要： A process for recovery of natural gas liquids is disclosed, the process including: fractionating a gas stream comprising nitrogen, methane, ethane, and propane and other C3+ hydrocarbons into at least two fractions including a light fraction comprising nitrogen, methane, ethane, and propane, and a heavy fraction comprising propane and other C3+ hydrocarbons; separating the light fraction into at least two fractions including a nitrogen-enriched fraction and a nitrogen-depleted fraction in a first separator; separating the nitrogen-depleted fraction into a propane-enriched fraction and a propane-depleted fraction in a second separator; feeding at least a portion of the propane-enriched fraction to the fractionating as a reflux; recycling at least a portion of the propane-depleted fraction to the first separator. In some embodiments, the nitrogen-enriched fraction may be separated in a nitrogen removal unit to produce a nitrogen-depleted natural gas stream and a nitrogen-enriched natural gas stream.
摘要翻译：公开了回收天然气液体的方法，该方法包括：将包含氮气，甲烷，乙烷和丙烷以及其它C3 +烃的气流分馏成至少两个馏分，包括含有氮，甲烷，乙烷和丙烷的轻馏分，和包含丙烷和其它C 3+烃的重馏分; 将轻馏分在第一分离器中分离成包含富氮馏分和贫氮馏分的至少两个馏分; 将所述贫氮部分分离成富丙烷馏分和在第二分离器中的丙烷贫化馏分; 将至少一部分富含丙烷的馏分进料至作为回流的馏分; 将至少一部分丙烷贫化的馏分回收到第一分离器。在一些实施方案中，可以在除氮单元中分离富氮馏分以产生贫氮天然气流和富氮天然气流。

93. 发明申请

US20160377341A1 HYDROCARBON GAS PROCESSING FEATURING A COMPRESSED REFLUX STREAM FORMED BY COMBINING A PORTION OF COLUMN RESIDUE GAS WITH A DISTILLATION VAPOR STREAM WITHDRAWN FROM THE SIDE OF THE COLUMN 审中-公开
标题翻译：通过将柱状残留气体与蒸馏塔流出的压缩气流组合而成的压缩式回流流化床的气体加工特征
公开(公告)号：US20160377341A1
公开(公告)日：2016-12-29
申请号：US15259891
申请日：2016-09-08
申请人： ORTLOFF ENGINEERS, LTD.
发明人： Tony L. Martinez , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/30 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2200/90 , F25J2200/92 , F25J2200/94 , F25J2205/04 , F25J2210/06 , F25J2210/60 , F25J2215/60 , F25J2230/08 , F25J2235/60 , F25J2240/02 , F25J2240/40 , F25J2270/02 , F25J2270/12 , F25J2290/12 , F25J2290/40
摘要： A process and an apparatus are disclosed for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and divided into first and second portions. The first and second portions are expanded to the fractionation tower pressure and supplied to the fractionation tower at upper mid-column feed positions, with the expanded second portion being heated before it enters the tower. The second stream is expanded to the tower pressure and supplied to the column at a mid-column feed position. A distillation vapor stream is withdrawn from the column above the feed point of the second stream, combined with a portion of the tower overhead vapor stream, compressed to higher pressure, and directed into heat exchange relation with the remaining tower overhead vapor stream and the expanded second portion to cool the compressed combined vapor stream and condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is expanded to the tower pressure and directed to the fractionation tower as its top feed. The quantities and temperatures of the feeds to the fractionation tower are effective to maintain the overhead temperature of the fractionation tower at a temperature whereby the major portion of the desired components is recovered.
摘要翻译：公开了一种用于从烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法和装置。将流冷却并分成第一和第二流。第一流进一步冷却以基本上将其全部冷凝并分成第一和第二部分。将第一和第二部分扩展到分馏塔压力，并在上部中间塔进料位置处供应到分馏塔，其中扩展的第二部分在其进入塔之前被加热。将第二流扩展到塔压力，并在中间列进料位置供给塔。将蒸馏蒸气物流从第二物流进料点上方的塔抽出，与一部分塔顶塔顶蒸汽流合并，压缩至更高的压力，并导向与剩余的塔顶塔顶蒸气流和扩展的塔顶蒸气流的热交换关系第二部分以冷却压缩的组合蒸气流并冷凝其至少一部分，形成冷凝流。冷凝物流的至少一部分膨胀至塔压，并作为顶部进料引导至分馏塔。进入分馏塔的进料的量和温度对于将分馏塔的塔顶温度维持在所需组分的主要部分被回收的温度是有效的。

94. 发明申请

US20160258675A1 SPLIT FEED ADDITION TO ISO-PRESSURE OPEN REFRIGERATION LPG RECOVERY 审中-公开
标题翻译：分开进料加压开式制冷液化石油气回收
公开(公告)号：US20160258675A1
公开(公告)日：2016-09-08
申请号：US15027648
申请日：2014-10-08
申请人： LUMMUS TECHNOLOGY INC.
发明人： Ayyalasomayajula Kumar , Robert Huebel , Michael Malsam
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , C10L3/12 , C10L2290/06 , C10L2290/46 , C10L2290/48 , C10L2290/541 , C10L2290/543 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J3/0247 , F25J3/0257 , F25J2200/02 , F25J2200/30 , F25J2200/40 , F25J2200/70 , F25J2200/76 , F25J2200/78 , F25J2200/94 , F25J2205/02 , F25J2210/06 , F25J2210/12 , F25J2215/62 , F25J2260/60 , F25J2270/02 , F25J2270/12 , F25J2270/60
摘要： A process is disclosed herein for recovery of natural gas liquids from a feed gas stream, comprising forming a first portion of the feed gas stream and a second portion of the feed gas stream, wherein the mass ratio of the first portion to the second portion is in the range of 95:5 to 5:95, cooling the first portion in a heat exchanger and at least partially condensing the first portion, and feeding the second portion and the cooled and at least partially condensed first portion to a distillation column wherein lighter components are removed from the distillation column as an overhead vapor stream and heavier components are removed from the distillation column in the bottoms as a product stream, and wherein the second portion is fed into the distillation column at a point one or more vapor-liquid equilibrium stages below the first portion, thereby allowing mass transfer exchange between liquids of the cooled second portion and vapors of the second portion within the column. A corresponding apparatus is also disclosed.
摘要翻译：本文公开了一种从进料气流中回收天然气液体的方法，包括形成进料气流的第一部分和进料气流的第二部分，其中第一部分与第二部分的质量比为在95:5至5:95的范围内，在热交换器中冷却第一部分并且至少部分地冷凝第一部分，并将第二部分和冷却并且至少部分冷凝的第一部分供给到蒸馏塔，其中更轻组分作为塔顶蒸气流从蒸馏塔中除去，较重的组分作为产物流从塔底馏出物中除去，其中第二部分在一个或多个气液平衡点在第一部分之下的阶段，从而允许冷却的第二部分的液体和塔内的第二部分的蒸气之间的传质交换。还公开了相应的装置。

95. 发明授权

US09074815B2 Nitrogen removal with ISO-pressure open refrigeration natural gas liquids recovery 有权
标题翻译：氮气清除采用ISO压力开放制冷天然气液体回收
公开(公告)号：US09074815B2
公开(公告)日：2015-07-07
申请号：US14141064
申请日：2013-12-26
申请人： Lummus Technology Inc.
发明人： Michael Malsam
IPC分类号： F25J3/00 , F25J3/02 , C10L3/10 , F25J1/00
CPC分类号： F25J3/0242 , C10L3/10 , C10L3/105 , F25J1/0022 , F25J3/0209 , F25J3/0214 , F25J3/0233 , F25J3/0238 , F25J3/0247 , F25J3/0257 , F25J2200/04 , F25J2200/40 , F25J2200/78 , F25J2200/94 , F25J2205/40 , F25J2205/80 , F25J2215/02 , F25J2215/42 , F25J2215/60 , F25J2215/62 , F25J2220/62 , F25J2230/60 , F25J2245/02 , F25J2245/42 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2270/88
摘要： A process for recovery of natural gas liquids is disclosed, the process including: fractionating a gas stream comprising nitrogen, methane, ethane, and propane and other C3+ hydrocarbons into at least two fractions including a light fraction comprising nitrogen, methane, ethane, and propane, and a heavy fraction comprising propane and other C3+ hydrocarbons; separating the light fraction into at least two fractions including a nitrogen-enriched fraction and a nitrogen-depleted fraction in a first separator; separating the nitrogen-depleted fraction into a propane-enriched fraction and a propane-depleted fraction in a second separator; feeding at least a portion of the propane-enriched fraction to the fractionating as a reflux; recycling at least a portion of the propane-depleted fraction to the first separator. In some embodiments, the nitrogen-enriched fraction may be separated in a nitrogen removal unit to produce a nitrogen-depleted natural gas stream and a nitrogen-enriched natural gas stream.
摘要翻译：公开了回收天然气液体的方法，该方法包括：将包含氮气，甲烷，乙烷和丙烷以及其它C3 +烃的气流分馏成至少两个馏分，包括含有氮，甲烷，乙烷和丙烷的轻馏分，和包含丙烷和其它C 3+烃的重馏分; 将轻馏分在第一分离器中分离成包含富氮馏分和贫氮馏分的至少两个馏分; 将所述贫氮部分分离成富丙烷馏分和在第二分离器中的丙烷贫化馏分; 将至少一部分富含丙烷的馏分进料至作为回流的馏分; 将至少一部分丙烷贫化的馏分回收到第一分离器。在一些实施方案中，可以在除氮单元中分离富氮馏分以产生贫氮天然气流和富氮天然气流。

96. 发明申请

US20140090416A1 Cryogenic Separation of Synthesis Gas 审中-公开
标题翻译：合成气体的低温分离
公开(公告)号：US20140090416A1
公开(公告)日：2014-04-03
申请号：US14101628
申请日：2013-12-10
申请人： AIR PRODUCTS AND CHEMICALS, INC.
发明人： Brian Alfred McNeil , Andrew Weaver , David Graham Winter
IPC分类号： F25J3/08
CPC分类号： F25J3/0223 , C01B3/506 , C01B2203/0415 , C01B2203/046 , C01B2203/047 , C01B2203/048 , C01B2203/145 , C01B2203/146 , C01B2203/147 , F25J3/0233 , F25J3/0252 , F25J3/0257 , F25J3/0261 , F25J3/0271 , F25J3/08 , F25J2200/74 , F25J2200/76 , F25J2200/94 , F25J2205/04 , F25J2205/30 , F25J2215/02 , F25J2245/02 , F25J2270/02 , F25J2270/04 , F25J2270/24
摘要： A process and apparatus for separating a feed containing hydrogen, carbon monoxide, methane, and optionally nitrogen to form a product gas having a desired H2:CO molar ratio and optionally a hydrogen product gas and a carbon monoxide product gas. The feed is partially condensed to form a hydrogen-enriched vapor fraction and a carbon monoxide-enriched liquid fraction. The hydrogen-enriched vapor fraction and carbon monoxide-enriched liquid fraction are combined in a regulated manner to form an admixture, which is cryogenically separated to form the product mixture having the desired H2:CO molar ratio.
摘要翻译：用于分离含有氢气，一氧化碳，甲烷和任选的氮气的进料以形成具有所需H 2 :CO摩尔比的产物气体和任选的氢气产物气体和一氧化碳产物气体的方法和装置。进料部分冷凝以形成富氢蒸气馏分和富含一氧化碳的液体馏分。将富氢蒸气馏分和富含一氧化碳的液体馏分以调节的方式组合以形成混合物，其被低温分离以形成具有所需H 2 :CO摩尔比的产物混合物。

97. 发明申请

US20110067442A1 Hydrocarbon Gas Processing 有权
标题翻译：烃气处理
公开(公告)号：US20110067442A1
公开(公告)日：2011-03-24
申请号：US12869007
申请日：2010-08-26
申请人： Tony L. Martinez , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
发明人： Tony L. Martinez , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/08
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/30 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2200/90 , F25J2200/92 , F25J2200/94 , F25J2205/04 , F25J2210/06 , F25J2210/60 , F25J2215/60 , F25J2230/08 , F25J2235/60 , F25J2240/02 , F25J2240/40 , F25J2270/02 , F25J2270/12 , F25J2290/12 , F25J2290/40
摘要： A process and an apparatus are disclosed for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and divided into first and second portions. The first and second portions are expanded to the fractionation tower pressure and supplied to the fractionation tower at upper mid-column feed positions, with the expanded second portion being heated before it enters the tower. The second stream is expanded to the tower pressure and supplied to the column at a mid-column feed position. A distillation vapor stream is withdrawn from the column above the feed point of the second stream, combined with a portion of the tower overhead vapor stream, compressed to higher pressure, and directed into heat exchange relation with the remaining tower overhead vapor stream and the expanded second portion to cool the compressed combined vapor stream and condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is expanded to the tower pressure and directed to the fractionation tower as its top feed. The quantities and temperatures of the feeds to the fractionation tower are effective to maintain the overhead temperature of the fractionation tower at a temperature whereby the major portion of the desired components is recovered.
摘要翻译：公开了一种用于从烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法和装置。将流冷却并分成第一和第二流。第一流进一步冷却以基本上将其全部冷凝并分成第一和第二部分。将第一和第二部分扩展到分馏塔压力，并在上部中间塔进料位置处供应到分馏塔，其中扩展的第二部分在其进入塔之前被加热。将第二流扩展到塔压力，并在中间列进料位置供给塔。将蒸馏蒸气物流从第二物流进料点上方的塔抽出，与一部分塔顶塔顶蒸汽流合并，压缩至更高的压力，并导向与剩余的塔顶塔顶蒸气流和扩展的塔顶蒸气流的热交换关系第二部分以冷却压缩的组合蒸气流并冷凝其至少一部分，形成冷凝流。冷凝物流的至少一部分膨胀至塔压，并作为顶部进料引导至分馏塔。进入分馏塔的进料的量和温度对于将分馏塔的塔顶温度维持在所需组分的主要部分被回收的温度是有效的。

98. 发明申请

US20100223950A1 NITROGEN REMOVAL WITH ISO-PRESSURE OPEN REFRIGERATION NATURAL GAS LIQUIDS RECOVERY 有权
标题翻译：用ISO压力进行氮气去除打开制冷天然气液体回收
公开(公告)号：US20100223950A1
公开(公告)日：2010-09-09
申请号：US12397837
申请日：2009-03-04
申请人： Michael Malsam
发明人： Michael Malsam
IPC分类号： F25J1/00
CPC分类号： F25J3/0242 , C10L3/10 , C10L3/105 , F25J1/0022 , F25J3/0209 , F25J3/0214 , F25J3/0233 , F25J3/0238 , F25J3/0247 , F25J3/0257 , F25J2200/04 , F25J2200/40 , F25J2200/78 , F25J2200/94 , F25J2205/40 , F25J2205/80 , F25J2215/02 , F25J2215/42 , F25J2215/60 , F25J2215/62 , F25J2220/62 , F25J2230/60 , F25J2245/02 , F25J2245/42 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2270/88
摘要： A process for recovery of natural gas liquids is disclosed, the process including: fractionating a gas stream comprising nitrogen, methane, ethane, and propane and other C3+ hydrocarbons into at least two fractions including a light fraction comprising nitrogen, methane, ethane, and propane, and a heavy fraction comprising propane and other C3+ hydrocarbons; separating the light fraction into at least two fractions including a nitrogen-enriched fraction and a nitrogen-depleted fraction in a first separator; separating the nitrogen-depleted fraction into a propane-enriched fraction and a propane-depleted fraction in a second separator; feeding at least a portion of the propane-enriched fraction to the fractionating as a reflux; recycling at least a portion of the propane-depleted fraction to the first separator. In some embodiments, the nitrogen-enriched fraction may be separated in a nitrogen removal unit to produce a nitrogen-depleted natural gas stream and a nitrogen-enriched natural gas stream.
摘要翻译：公开了回收天然气液体的方法，该方法包括：将包含氮气，甲烷，乙烷和丙烷以及其它C3 +烃的气流分馏成至少两个馏分，包括含有氮，甲烷，乙烷和丙烷的轻馏分，和包含丙烷和其它C 3+烃的重馏分; 将轻馏分在第一分离器中分离成包含富氮馏分和贫氮馏分的至少两个馏分; 将所述贫氮部分分离成富丙烷馏分和在第二分离器中的丙烷贫化馏分; 将至少一部分富含丙烷的馏分进料至作为回流的馏分; 将至少一部分丙烷贫化的馏分回收到第一分离器。在一些实施方案中，可以在除氮单元中分离富氮馏分以产生贫氮天然气流和富氮天然气流。

99. 发明申请

US20100011810A1 NGL Recovery Methods and Configurations 审中-公开
标题翻译： NGL恢复方法和配置
公开(公告)号：US20100011810A1
公开(公告)日：2010-01-21
申请号：US11917383
申请日：2006-02-07
申请人： John Mak , Richard B. Nielsen , Curt Graham
发明人： John Mak , Richard B. Nielsen , Curt Graham
IPC分类号： F25J3/00
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/04 , F25J2200/74 , F25J2200/76 , F25J2200/80 , F25J2200/94 , F25J2205/04 , F25J2210/06 , F25J2215/62 , F25J2220/66 , F25J2230/08 , F25J2230/60 , F25J2240/02 , F25J2245/02 , F25J2260/02 , F25J2270/12 , F25J2270/60 , F25J2280/02 , F25J2290/40
摘要： Contemplated plants and methods for NGL recovery from feed gases having a carbon dioxide content equal or greater than about 2% employ temperature control configurations that allow high-level and flexible recovery of ethane and heavier components while avoiding freezing of the carbon dioxide in the process. Where the feed gas has a significant fraction of C3+ components and moderate carbon dioxide content, a single column configuration with an intermediate reflux condenser may be used, while two-column configurations may be used for feed gases with high carbon dioxide content and relatively low C3+ component concentration.
摘要翻译：使用二氧化碳含量等于或大于2％的进料气体进行NGL回收的考虑的工厂和方法采用允许高水平和灵活回收乙烷和较重组分的温度控制结构，同时避免过程中二氧化碳的冻结。当进料气体具有显着部分的C3 +组分和适度的二氧化碳含量时，可以使用具有中间回流冷凝器的单塔构型，而双柱构型可用于具有高二氧化碳含量的较高的进料气体和较低的C3 + 组分浓度。

100. 发明申请

US20070151291A1 Method and installation for producing carbon monoxide by cryogenic distillation 审中-公开
标题翻译：通过低温蒸馏生产一氧化碳的方法和安装
公开(公告)号：US20070151291A1
公开(公告)日：2007-07-05
申请号：US10572668
申请日：2004-09-21
申请人： Daniele Fauroux
发明人： Daniele Fauroux
IPC分类号： F25J3/00
CPC分类号： F25J3/0261 , C01B32/40 , F25J3/0223 , F25J3/0233 , F25J3/0252 , F25J2200/70 , F25J2200/74 , F25J2200/94 , F25J2205/04 , F25J2215/04 , F25J2270/02 , F25J2270/04 , F25J2270/24
摘要： The invention relates to a method for producing carbon monoxide by cryogenic distillation. Said method comprises the following steps: a gaseous mixture (1) containing carbon monoxide, hydrogen and nitrogen is cooled and partially condensed to produce a cooled and partially condensed gaseous mixture; the cooled and partially condensed gaseous mixture (5) is separated in order to produce a gas enriched with hydrogen and a liquid enriched with carbon monoxide (11); a flow of the liquid enriched with carbon monoxide is sent to a product stripper (17) in order to produce hydrogen-depleted liquid carbon monoxide (19) and hydrogen-enriched gaseous carbon monoxide (RSD); a flow of the hydrogen-depleted carbon monoxide is sent to a first intermediate level of a distillation column (23); a liquid flow enriched with methane (27) compared to the flow supplied to the distillation column is drawn off from the bottom of the distillation column; a flow (29) enriched with carbon monoxide is drawn off at a second intermediate point above the first intermediate point; and a flow (RSDN2) enriched with nitrogen and optionally hydrogen compared to the flow supplied to the distillation column is drawn off from the top of the distillation column.
摘要翻译：本发明涉及通过低温蒸馏生产一氧化碳的方法。所述方法包括以下步骤：将含有一氧化碳，氢气和氮气的气体混合物（1）冷却并部分冷凝以产生冷却和部分冷凝的气态混合物; 分离冷却和部分冷凝的气体混合物（5）以产生富含氢气和富含一氧化碳的液体（11）的气体; 将富含一氧化碳的液体流送入产品汽提器（17），以产生贫氢液体一氧化碳（19）和富氢气态一氧化碳（RSD）; 将贫氢一氧化碳流送入蒸馏塔（23）的第一中间水平; 从提供给蒸馏塔的流量相比，富含甲烷（27）的液体流从蒸馏塔的底部排出; 富含一氧化碳的流（29）在第一中间点上方的第二中间点被排出; 并且从蒸馏塔的顶部排出富含氮气和任选氢气的流量（RSDN2）。

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