公开(公告)号：US07214846B2

公开(公告)日：2007-05-08

申请号：US10635410

申请日：2003-08-06

申请人： Cornelis F. Van Egmond ,  David Jon Duhon ,  John Ernest Asplin

发明人： Cornelis F. Van Egmond ,  David Jon Duhon ,  John Ernest Asplin

IPC分类号： C07C1/20

CPC分类号： C07C7/11 ,  C10G3/49 ,  C10G2300/1092 ,  C10G2400/20 ,  Y02P30/20 ,  Y02P30/40 ,  Y02P30/42 ,  Y02P30/464 ,  C07C11/02

摘要： The present invention provides new highly-efficient separation processes and systems for separating polymerization-grade ethylene and propylene from an initial effluent stream comprising ethane, ethylene, propylene, dimethyl ether, and one or more of propane, acetylene, methyl acetylene, propadiene, methane, hydrogen, carbon monoxide, carbon dioxide and C4+ components. In one embodiment, the initial effluent stream is provided from a methanol-to-olefin reaction system. It has been discovered that an efficient separation of these components is realized when DME is partially removed in a first separation step comprising methanol and water washing steps, followed by separation of the remaining components in additional separation steps.

公开(公告)号：US6069287A

公开(公告)日：2000-05-30

申请号：US73085

申请日：1998-05-05

申请人： Paul K. Ladwig ,  John Ernest Asplin ,  Gordon F. Stuntz ,  William A. Wachter ,  Brian Erik Henry

发明人： Paul K. Ladwig ,  John Ernest Asplin ,  Gordon F. Stuntz ,  William A. Wachter ,  Brian Erik Henry

IPC分类号： C07C4/04 ,  C07C4/06 ,  C07C11/02 ,  C10G11/02 ,  C10G11/04 ,  C10G11/05 ,  C10G35/02 ,  C10G35/04 ,  C10G35/06 ,  C10G35/095 ,  C10G51/02 ,  C10G51/04 ,  C10G57/02

CPC分类号： C10G57/02 ,  C10G51/023 ,  C10G2400/20

摘要： A process for selectively producing C.sub.2 -C.sub.4 olefins from a catalytically cracked or thermally cracked naphtha stream. The naphtha stream is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures from about 500 to 650.degree. C. and a hydrocarbon partial pressure from about 10 to 40 psia.

摘要翻译： 从催化裂化或热裂解的石脑油流中选择性生产C2-C4烯烃的方法。 将石脑油流与含有约10至50wt。 ％的平均孔径小于约0.7纳米的结晶沸石在包括约500至650℃的温度和约10至40psia的烃分压的反应条件下进行。

公开(公告)号：US6118035A

公开(公告)日：2000-09-12

申请号：US072632

申请日：1998-05-05

申请人： Shun C. Fung ,  Tan-Jen Chen ,  Marcel J. G. Janssen ,  William A. Wachter ,  Brian Eric Henry ,  John Ernest Asplin

发明人： Shun C. Fung ,  Tan-Jen Chen ,  Marcel J. G. Janssen ,  William A. Wachter ,  Brian Eric Henry ,  John Ernest Asplin

IPC分类号： C07C4/02 ,  C07B61/00 ,  C07C11/06 ,  C10G9/26 ,  C10G11/00 ,  C10G11/05 ,  C10G57/02 ,  C07C4/06

CPC分类号： C10G57/02 ,  C10G2400/20

摘要： A process for selectively producing C.sub.2 -C.sub.4 olefins from a catalytically cracked or thermally cracked naphtha stream is disclosed. A mixture of the naphtha stream and a stream of steam is feed into a reaction zone where it is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures from about 500 to 650.degree. C. and a hydrocarbon partial pressure from about 10 to 40 psia.

摘要翻译： 公开了一种从催化裂化或热裂解石脑油流中选择性生产C2-C4烯烃的方法。 将石脑油流和蒸汽流的混合物进料到反应区，在反应区中与含有约10至50wt。 ％的平均孔径小于约0.7纳米的结晶沸石在包括约500至650℃的温度和约10至40psia的烃分压的反应条件下进行。

公开(公告)号：US6093867A

公开(公告)日：2000-07-25

申请号：US73083

申请日：1998-05-05

申请人： Paul K. Ladwig ,  John Ernest Asplin ,  Gordon F. Stuntz ,  Tan-Jen Chen

发明人： Paul K. Ladwig ,  John Ernest Asplin ,  Gordon F. Stuntz ,  Tan-Jen Chen

IPC分类号： C07C4/02 ,  C07C4/06 ,  C07C11/02 ,  C10G11/02 ,  C10G11/04 ,  C10G11/05 ,  C10G57/02

CPC分类号： C10G57/02 ,  C10G2400/20

摘要： A process for selectively producing C.sub.3 olefins from a catalytically cracked or thermally cracked naphtha stream. The naphtha stream is introduced into a process unit comprised of a reaction zone, a stripping zone, a catalyst regeneration zone, and a fractionation zone. The naphtha feedstream is contacted in the reaction zone with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures ranging from about 500.degree. to 650.degree. C. and a hydrocarbon partial pressure from about 10 to 40 psia. Vapor products are collected overhead and the catalyst particles are passed through the stripping zone on the way to the catalyst regeneration zone. Volatiles are stripped with steam in the stripping zone and the catalyst particles are sent to the catalyst regeneration zone where coke is burned from the catalyst, which is then recycled to the reaction zone. Overhead products from the reaction zone are passed to a fractionation zone where a stream of C.sub.3 's is recovered and a stream rich in C.sub.4 and/or C.sub.5 olefins is recycled to the stripping zone.

摘要翻译： 从催化裂化或热裂解的石脑油流中选择性生产C3烯烃的方法。 将石脑油流引入由反应区，汽提区，催化剂再生区和分馏区构成的工艺单元中。 石脑油原料流在反应区中与含有约10至50wt。 ％的平均孔径小于约0.7纳米的结晶沸石在包括约500℃至650℃的温度和约10至40psia的烃分压的反应条件下进行。 蒸气产物被顶部收集，催化剂颗粒在通向催化剂再生区的途中通过汽提区。 挥发物在汽提区中用蒸汽汽提，并将催化剂颗粒送入催化剂再生区，其中焦炭从催化剂燃烧，然后再循环到反应区。 来自反应区的高架物质被送入分馏区，其中回收C3的物流，富含C4和/或C5烯烃的物流被循环到汽提区。