公开(公告)号：US20130172645A1

公开(公告)日：2013-07-04

申请号：US13727877

申请日：2012-12-27

Applicant: SHELL OIL COMPANY

Inventor： Leslie Andrew CHEWTER ,  Rajaram RAMESH ,  Jeroen VAN WESTRENEN

IPC: C07C1/22

CPC classification number: C07C1/22 ,  C07C1/20 ,  C07C7/08 ,  C07C41/06 ,  C07C2529/40 ,  C07C2529/70 ,  Y02P30/42 ,  C07C11/08 ,  C07C43/046 ,  C07C11/02

Abstract: The invention relates to a process for preparing lower olefins from an oxygenate, the process comprising subjecting C4 hydrocarbons obtained in an oxygenate-to-olefins conversion step to extractive distillation to obtain a stream enriched in unsaturated C4 hydrocarbons comprising isobutene and n-butenes, and a stream enriched in saturated C4 hydrocarbons; converting the isobutene in the stream enriched in unsaturated C4 hydrocarbons into an alkyl tertiary butyl ether to obtain an isobutene-depleted unsaturated C4 hydrocarbon stream and alkyl tertiary-butyl ether; and recycling at least part of the isobutene-depleted unsaturated C4 hydrocarbon stream and/or at least part of the alkyl tertiary-butyl ether, optionally after conversion into tertiary butanol and/or isobutene, to the oxygenate-to-olefins conversion step.

Abstract translation: 本发明涉及从含氧化合物制备低级烯烃的方法，该方法包括将在含氧化合物 - 烯烃转化步骤中获得的C4烃进行萃取蒸馏以获得富含不饱和C 4烃的物流，其包含异丁烯和正丁烯，以及 富含饱和C4烃的物流; 将富含不饱和C4烃的物流中的异丁烯转化为烷基叔丁基醚，得到异丁烯贫化的不饱和C 4烃物流和烷基叔丁基醚; 并且任选地在转化成叔丁醇和/或异丁烯之后将至少部分异丁烯贫化的不饱和C4烃流和/或至少部分烷基叔丁基醚再循环到含氧化合物 - 烯烃转化步骤中。

公开(公告)号：US20130172627A1

公开(公告)日：2013-07-04

申请号：US13727863

申请日：2012-12-27

Applicant: Shell Oil Company

Inventor： Leslie Andrew CHEWTER ,  Rajaram RAMESH ,  Jeroen VAN WESTRENEN

IPC: C07C1/22 ,  C07C41/06 ,  C07C4/04

CPC classification number: C07C1/22 ,  C07C1/20 ,  C07C4/04 ,  C07C41/06 ,  C07C2529/40 ,  C10G3/49 ,  C10G7/08 ,  C10G9/36 ,  C10G55/04 ,  C10G2400/20 ,  Y02P30/42 ,  C07C11/02 ,  C07C43/046

Abstract: The invention is a process for preparing lower olefins comprising: a) steam cracking a paraffinic feedstock to obtain a cracker effluent comprising olefins and saturated and unsaturated C4 hydrocarbons; b) contacting an oxygenate feedstock with a molecular sieve-comprising catalyst, at a temperature in the range of from 350 to 1000° C. to obtain an oxygenate conversion effluent comprising olefins and saturated and unsaturated C4 hydrocarbons; c) subjecting the cracker effluent and the oxygenate conversion effluent to one or more separation steps such that an olefin product stream comprising ethylene and/or propylene, and a stream comprising saturated and unsaturated C4 hydrocarbons are obtained; and d) subjecting part of the stream comprising C4 hydrocarbons from both the cracker effluent and the oxygenate conversion effluent to extractive distillation to obtain a stream enriched in unsaturated C4 hydrocarbons and a stream enriched in saturated C4 hydrocarbons.

Abstract translation: 本发明是一种制备低级烯烃的方法，包括：a）蒸汽裂解链烷烃原料以获得包含烯烃和饱和和不饱和C4烃的裂化器流出物; b）使含氧化合物原料与含分子筛的催化剂在350至1000℃的温度下接触，以获得包含烯烃和饱和和不饱和C4烃的含氧化合物转化流出物; c）使裂解液流出物和含氧化合物转化流出物经历一个或多个分离步骤，使得获得包含乙烯和/或丙烯的烯烃产物流和包含饱和和不饱和C4烃的物流; 和d）使来自裂化器流出物和含氧化合物转化流出物的包含C4烃的部分物流进行萃取蒸馏，以获得富含不饱和C 4烃的物流和富含饱和C 4烃的物流。

公开(公告)号：US20130096352A1

公开(公告)日：2013-04-18

申请号：US13653149

申请日：2012-10-16

Applicant: SHELL OIL COMPANY

Inventor： Leslie Andrew CHEWTER ,  Hervé HENRY ,  Pieter OLDENHOVE ,  Rajaram RAMESH ,  Jeroen VAN WESTRENEN

IPC: C07C29/132

CPC classification number: C07C29/132 ,  C07C1/20 ,  C07C2521/12 ,  C07C2523/42 ,  Y02P30/42 ,  C07C31/04 ,  C07C9/12

Abstract: The invention relates to a process for converting an alkyl tert-alkyl ether into an alkanol and an iso-alkane wherein the alkyl tert-alkyl ether is contacted with a hydrocracking catalyst in the presence of hydrogen under hydrocracking process conditions.

Abstract translation: 本发明涉及一种将烷基叔烷基醚转化为链烷醇和异烷烃的方法，其中烷基叔烷基醚在加氢裂化工艺条件下在氢气存在下与加氢裂化催化剂接触。

公开(公告)号：US20130172644A1

公开(公告)日：2013-07-04

申请号：US13727869

申请日：2012-12-27

Applicant: SHELL OIL COMPANY

Inventor： Leslie Andrew CHEWTER ,  Rajaram RAMESH ,  Jeroen VAN WESTRENEN

IPC: C07C1/22

CPC classification number: C07C1/22 ,  C07C1/20 ,  C07C7/08 ,  C07C41/06 ,  C07C41/42 ,  C07C2529/40 ,  C07C2529/70 ,  Y02P30/42 ,  C07C11/02 ,  C07C43/046 ,  C07C11/08

Abstract: The invention relates to a process for preparing lower olefins from an oxygenate, the process comprising: subjecting C4 hydrocarbons obtained in an oxygenate-to-olefins conversion step to extractive distillation to an etherification step to convert isobutene into an alkyl tertiary butyl ether to obtain an isobutene-depleted C4 hydrocarbon stream and alkyl tertiary-butyl ether;subjecting the isobutene-depleted C4 hydrocarbon stream to extractive distillation to obtain a stream enriched in unsaturated C4 hydrocarbons and a stream enriched in saturated C4 hydrocarbons; and recycling at least part of the stream enriched in unsaturated C4 hydrocarbons and/or at least part of the alkyl tertiary-butyl ether to the oxygenate-to-olefins conversion step.

Abstract translation: 本发明涉及一种从含氧化合物制备低级烯烃的方法，该方法包括：将在含氧化合物 - 烯烃转化步骤中获得的C4烃进行萃取蒸馏至醚化步骤，将异丁烯转化为烷基叔丁基醚，得到 异丁烯耗尽的C4烃流和烷基叔丁基醚; 使异丁烯贫化的C4烃流进行萃取蒸馏以获得富含不饱和C4烃的流和富含饱和C 4烃的流; 以及将富含不饱和C4烃和/或至少部分烷基叔丁基醚的至少一部分物流循环到含氧化合物 - 烯烃转化步骤。

公开(公告)号：US20130096329A1

公开(公告)日：2013-04-18

申请号：US13653135

申请日：2012-10-16

Applicant: SHELL OIL COMPANY

Inventor： Leslie Andrew CHEWTER ,  Hervé HENRY ,  Pieter OLDENHOVE ,  Rajaram RAMESH ,  Jeroen VAN WESTRENEN

IPC: C07D301/19

CPC classification number: C07D301/19 ,  Y02P20/125

Abstract: The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the oxygenate is converted into a lower olefin and the lower olefin is subsequently epoxidised, and wherein isobutane obtained after hydrogenation and subsequent normal/iso separation of C4 hydrocarbons obtained as by-product of the oxygenate conversion, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide.

Abstract translation: 本发明涉及从含氧化合物制备环氧化物的综合方法，其中将含氧化合物转化为低级烯烃，随后将低级烯烃环氧化，并且其中在氢化之后获得的异丁烷和随后的正如/ - 含氧化合物转化率的产物转化成用于将低级烯烃转化成相应的环氧化物的氢过氧化物。

公开(公告)号：US20130096328A1

公开(公告)日：2013-04-18

申请号：US13653116

申请日：2012-10-16

Applicant: SHELL OIL COMPANY

Inventor： Leslie Andrew CHEWTER ,  Hervé HENRY ,  Pieter OLDENHOVE ,  Rajaram RAMESH ,  Jeroen VAN WESTRENEN

IPC: C07D301/19

CPC classification number: C07D301/19 ,  Y02P20/125

Abstract: The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the production of a lower olefin from the oxygenate and the subsequent epoxidation of the lower olefin is combined and wherein isobutene, a by-product of the lower olefin production, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide.

Abstract translation: 本发明涉及从含氧化合物制备环氧化物的综合方法，其中从含氧化合物制备低级烯烃和随后的低级烯烃环氧化合并，其中异丁烯是较低烯烃生产的副产物是 转化为用于将低级烯烃转化成相应的环氧化物的氢过氧化物。