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公开(公告)号：US08889941B2
公开(公告)日：2014-11-18
申请号：US13727877
申请日：2012-12-27
Applicant: Shell Oil Company
Inventor： Leslie Andrew Chewter , Rajaram Ramesh , Jeroen Van Westrenen
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。
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公开(公告)号：US09732011B2
公开(公告)日：2017-08-15
申请号：US14412697
申请日：2013-07-01
Applicant: SHELL OIL COMPANY
Inventor： Rajaram Ramesh
CPC classification number: C07C1/20 , C07C4/04 , C07C7/08 , C07C2529/40 , C10G3/49 , C10G3/52 , C10G9/36 , C10G2300/1081 , C10G2400/20 , C10G2400/22 , Y02P20/125 , Y02P30/42 , C07C11/04 , C07C11/06 , C07C11/167
Abstract: The present invention provides an integrated process for the preparation of olefins, which process comprises the steps of: (a) reacting an oxygenate and/or olefinic feed in a reactor to form an effluent which comprises olefins; (b) fractionating at least part of the effluent into two olefinic product fractions; (c) subjecting a hydrocarbon feedstock in a reactor to a steam cracking process to form an effluent which comprises olefins including butadiene; (d) combining at least part of the first olefinic product fraction as obtained in step (b) and at least part of the second effluent which comprises olefins as obtained in step (c) to form a combined olefinic product stream comprising at least ethylene, propylene and butadiene; and (e) separating at least part of the combined olefinic product stream as obtained in step (d) to form a fraction comprising ethylene and/or propylene and a fraction that comprises butadiene.
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3.发明授权Process for converting an alkyl tert-alkyl ether into an alkanol and an iso-alkane 有权将烷基叔烷基醚转化成链烷醇和异烷烃的方法公开(公告)号：US09067860B2
公开(公告)日：2015-06-30
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: C07C29/00 , C07C29/132 , C07C1/20
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。
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Patent Agency Ranking
公开(公告)号：US20150158783A1
公开(公告)日：2015-06-11
申请号：US14412697
申请日：2013-07-01
Applicant: SHELL OIL COMPANY
Inventor： Rajaram Ramesh
CPC classification number: C07C1/20 , C07C4/04 , C07C7/08 , C07C2529/40 , C10G3/49 , C10G3/52 , C10G9/36 , C10G2300/1081 , C10G2400/20 , C10G2400/22 , Y02P20/125 , Y02P30/42 , C07C11/04 , C07C11/06 , C07C11/167
Abstract: The present invention provides an integrated process for the preparation of olefins, which process comprises the steps of:(a) reacting an oxygenate and/or olefinic feed in a reactor to form an effluent which comprises olefins; (b) fractionating at least part of the effluent into two olefinic product fractions; (c) subjecting a hydrocarbon feedstock in a reactor to a steam cracking process to form an effluent which comprises olefins including butadiene; (d) combining at least part of the first olefinic product fraction as obtained in step (b) and at least part of the second effluent which comprises olefins as obtained in step (c) to form a combined olefinic product stream comprising at least ethylene, propylene and butadiene; and (e) separating at least part of the combined olefinic product stream as obtained in step (d) to form a fraction comprising ethylene and/or propylene and a fraction that comprises butadiene.
Abstract translation: 本发明提供了一种用于制备烯烃的综合方法，该方法包括以下步骤：（a）在反应器中使含氧化合物和/或烯烃进料反应以形成包含烯烃的流出物; （b）将至少部分流出物分馏成两个烯属产物馏分; （c）使反应器中的烃原料进行蒸汽裂解过程以形成包含丁烯的烯烃的流出物; （d）将步骤（b）中获得的至少部分第一烯属产物级分与至少部分包含在步骤（c）中获得的烯烃的第二流出物混合形成至少包含乙烯， 丙烯和丁二烯; 和（e）分离步骤（d）中获得的至少部分组合的烯烃产物流，以形成包含乙烯和/或丙烯的馏分和包含丁二烯的馏分。
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公开(公告)号：US08946496B2
公开(公告)日：2015-02-03
申请号：US13727869
申请日：2012-12-27
Applicant: Shell Oil Company
Inventor： Leslie Andrew Chewter , Rajaram Ramesh , Jeroen Van Westrenen
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。
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公开(公告)号：US08822710B2
公开(公告)日：2014-09-02
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: C07D301/02 , 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。
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公开(公告)号：US08822709B2
公开(公告)日：2014-09-02
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: C07D301/03 , 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: 本发明涉及一种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。
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公开(公告)号：US20150112107A1
公开(公告)日：2015-04-23
申请号：US14368649
申请日：2012-12-21
Applicant: SHELL OIL COMPANY
Inventor： Rajaram Ramesh , Jeroen Van Westrenen
CPC classification number: C07C7/11 , C07C1/20 , C07C1/22 , C07C7/005 , C07C7/152 , C07C2529/40 , C07C2529/70 , Y02P30/42 , Y02P30/48 , C07C11/02
Abstract: The present invention relates to a process for the preparation of an olefinic product, such as one or both of ethylene and propylene, from an oxygenate feedstock, such as methanol, and an apparatus therefore, said process comprising: treating an effluent stream with a carbonyl compound absorbent stream comprising an aqueous solution of bisulphite having a pH in the range of from 4 to 8, to provide an olefinic product stream comprising olefin and a loaded carbonyl compound absorbent stream comprising an aqueous solution of at least one carbonyl adduct comprising one or both of C2+ aldehyde adduct and ketone adduct and optionally unreacted bisulphite, said liquid absorbent stream and loaded carbonyl compound absorbent stream in a carbonyl compound absorbent circuit separate from the effluent separation circuit.
Abstract translation: 本发明涉及由含氧化合物原料如甲醇制备烯烃产物如乙烯和丙烯中的一种或两种的方法，因此，所述方法包括：用羰基处理流出物流 包含pH为4-8的亚硫酸氢盐水溶液的复合吸收剂流，以提供包含烯烃的烯烃产物流和负载的羰基化合物吸收剂流，其包含至少一种羰基加合物的水溶液，其包含一种或两种 的C2 +醛加合物和酮加合物和任选的未反应的亚硫酸氢盐，所述液体吸收剂流和负载的羰基化合物吸收剂流在羰基化合物吸收剂回路中与流出物分离回路分离。
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