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公开(公告)号：WO2010053598A1
公开(公告)日：2010-05-14
申请号：PCT/US2009/046736
申请日：2009-06-09
Applicant: LUMMUS TECHNOLOGY INC. , DE HAAN, Stephen , KUZMA, Peter, Daniel., Jr.
Inventor： DE HAAN, Stephen , KUZMA, Peter, Daniel., Jr.
CPC classification number: C07C7/08 , C07C1/20 , C07C7/04 , C07C7/14858 , C07C2529/06 , Y02P20/127 , Y02P20/52 , Y02P30/42 , C07C11/04
Abstract: A process for conversion of methanol to olefins (MTO), including: contacting methanol and air in a methanol-to-olefins reactor; recovering an effluent from the methanol- to-olefins reactor comprising methanol, ethylene, and nitrogen oxides; separating the effluent via one or more reactive distillation and/or distillation stages using a hydrocarbon absorbent to recover a first fraction comprising ethylene and a second fraction comprising methane; wherein the separating comprises operating the one or more extractive distillation and/or distillation stages at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N 2 O 3 .
Abstract translation: 一种将甲醇转化为烯烃（MTO）的方法，包括：将甲醇与空气在甲醇 - 烯烃反应器中接触; 回收包含甲醇，乙烯和氮氧化物的甲醇至乙烯反应器的流出物; 通过一个或多个反应蒸馏和/或蒸馏步骤使用烃吸收剂分离出流出物以回收包含乙烯的第一馏分和包含甲烷的第二馏分; 其中所述分离包括在足以防止氮氧化物大量转化为N 2 O 3的温度和压力下操作所述一个或多个萃取蒸馏和/或蒸馏级。
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公开(公告)号：WO2012071120A2
公开(公告)日：2012-05-31
申请号：PCT/US2011/057278
申请日：2011-10-21
Applicant: LUMMUS TECHNOLOGY INC. , STANLEY, Stephen, J. , DE HAAN, Stephen , KUZMA, Peter, Daniel, Jr.
Inventor： STANLEY, Stephen, J. , DE HAAN, Stephen , KUZMA, Peter, Daniel, Jr.
CPC classification number: C07C7/08 , C07C7/1485 , C10G9/00 , C10G9/36 , C10G11/18 , C10G21/06 , C10G25/05 , C10G53/08 , C10G2300/4081 , C10G2400/20 , Y02P30/40 , Y02P30/42 , Y02P30/446 , Y02P30/462 , C07C11/04
Abstract: A process for recovering ethylene is disclosed, the process including: recovering a ethylene-containing stream comprising methane, ethylene, and nitrogen oxides from at least one of an ethylene production process and an ethylene recovery process; separating the ethylene-containing stream via extractive distillation using at least one C 2 + hydrocarbon absorbent to produce an overheads fraction comprising methane and nitrogen oxides and a bottoms fraction comprising the at least one C 2+ hydrocarbon absorbent and ethylene; wherein the separating comprises operating the extractive distillation at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N 2 0 3 .
Abstract translation: 公开了回收乙烯的方法，该方法包括：从乙烯生产方法和乙烯回收方法中的至少一种回收包含甲烷，乙烯和氮氧化物的含乙烯料流; 通过萃取蒸馏使用至少一种C2 +烃吸收剂分离含乙烯流，以产生包含甲烷和氮氧化物的塔顶馏分和包含至少一种C 2 +烃吸收剂和乙烯的塔底馏分; 其中所述分离包括在足以防止氮氧化物大量转化为N 2 O 3的温度和压力下进行萃取蒸馏。
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公开(公告)号：WO2012071120A3
公开(公告)日：2012-07-19
申请号：PCT/US2011057278
申请日：2011-10-21
Applicant: LUMMUS TECHNOLOGY INC , STANLEY STEPHEN J , DE HAAN STEPHEN , KUZMA PETER DANIEL JR
Inventor： STANLEY STEPHEN J , DE HAAN STEPHEN , KUZMA PETER DANIEL JR
CPC classification number: C07C7/08 , C07C7/1485 , C10G9/00 , C10G9/36 , C10G11/18 , C10G21/06 , C10G25/05 , C10G53/08 , C10G2300/4081 , C10G2400/20 , Y02P30/40 , Y02P30/42 , Y02P30/446 , Y02P30/462 , C07C11/04
Abstract: A process for recovering ethylene is disclosed, the process including: recovering a ethylene-containing stream comprising methane, ethylene, and nitrogen oxides from at least one of an ethylene production process and an ethylene recovery process; separating the ethylene-containing stream via extractive distillation using at least one C2+ hydrocarbon absorbent to produce an overheads fraction comprising methane and nitrogen oxides and a bottoms fraction comprising the at least one C2+ hydrocarbon absorbent and ethylene; wherein the separating comprises operating the extractive distillation at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N203.
Abstract translation: 公开了回收乙烯的方法，该方法包括：从乙烯生产方法和乙烯回收方法中的至少一种回收包含甲烷，乙烯和氮氧化物的含乙烯料流; 通过萃取蒸馏使用至少一种C2 +烃吸收剂分离含乙烯流，以产生包含甲烷和氮氧化物的塔顶馏分和包含至少一种C 2 +烃吸收剂和乙烯的塔底馏分; 其中所述分离包括在足以防止氮氧化物大量转化为N 2 O 3的温度和压力下进行萃取蒸馏。
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