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Patent Agency Ranking
公开(公告)号：US20160108017A1
公开(公告)日：2016-04-21
申请号：US14953836
申请日：2015-11-30
Applicant: SHELL OIL COMPANY
Inventor： Timothy Michael NISBET , Garo Garbis VAPORCIYAN
IPC: C07D317/36 , B01J31/02
CPC classification number: C07D317/36 , B01J31/0268 , Y02P20/584
Abstract: The invention relates to a process for preparing an 1,2-alkylene carbonate comprising (i) contacting carbon dioxide, an 1,2-alkylene oxide and a carbonation catalyst in a reactor to produce a crude reactor effluent containing carbon dioxide, light components, 1,2-alkylene carbonate and catalyst; (ii) separating carbon dioxide and light components from the crude reactor effluent to form a bottoms stream containing 1,2-alkylene carbonate and catalyst; (iii) distilling the bottoms stream formed in step (ii) to form a first distillation overhead stream containing 1,2-alkylene carbonate and a first distillation bottoms stream containing catalyst, and recycling at least part of the first distillation bottoms stream to the reactor; and (iv) distilling the first distillation overhead stream to form a second distillation overhead stream and a second distillation bottoms stream containing 1,2-alkylene carbonate, and recycling at least part of the second distillation overhead stream to the reactor.
Abstract translation: 本发明涉及一种制备1,2-亚烷基碳酸酯的方法，其包括（i）在反应器中使二氧化碳，1,2-环氧烷烃和碳酸化催化剂接触，以生产含有二氧化碳，轻组分， 碳酸1,2-亚烷基酯和催化剂; （ii）从粗反应器流出物中分离二氧化碳和轻组分以形成含有1,2-亚烷基碳酸酯和催化剂的塔底物流; （iii）蒸馏步骤（ii）中形成的塔底物流以形成含有1,2-亚烷基碳酸酯的第一蒸馏塔顶物流和含有催化剂的第一蒸馏塔底物流，并将至少部分第一蒸馏塔底物流再循环到反应器 ; 和（iv）蒸馏第一蒸馏塔顶流以形成第二蒸馏塔顶馏出物流和含有1,2-亚烷基碳酸酯的第二蒸馏塔底物流，并将至少部分第二蒸馏塔顶馏分再循环到反应器中。
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公开(公告)号：US20180362424A1
公开(公告)日：2018-12-20
申请号：US16060221
申请日：2016-12-07
Applicant: SHELL OIL COMPANY
Inventor： Leslie Andrew CHEWTER , Jean Paul Andre Marie Joseph Ghislain LANGE , Duraisamy MUTHUSAMY , Timothy Michael NISBET , Evert VAN DER HEIDE , Pieter HUIZENGA
CPC classification number: C07C29/132 , B01J8/20 , B01J8/22 , B01J10/007 , B01J16/005 , B01J19/1881 , B01J19/2465 , B01J2208/00283 , B01J2219/0011 , C07C29/60 , C07C31/202 , C07C31/205 , C07C2521/06 , C07C2523/22 , C07C2523/26 , C07C2523/28 , C07C2523/30 , Y02P20/582
Abstract: The invention provides a continuous process for the preparation of ethylene glycol and 1, 2-propylene glycol from starting material comprising one or more saccharides, said process being carried out in a reactor system comprising a reactor vessel equipped with an external recycle loop and said process comprising the steps of: i) providing the starting material in a solvent, via an inlet, to the external recycle loop and contacting it therein with a retro-aldol catalyst composition to provide an intermediate stream; ii) then contacting said intermediate stream with hydrogen in the presence of a hydrogenation catalyst composition in the reactor vessel; iii) withdrawing a product stream comprising glycols from the reactor vessel; iv) providing a portion of said product stream, via an outlet, for separation and purification of the glycols contained therein; and v) recycling the remainder of said product stream via the external recycle loop.
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公开(公告)号：US20180362425A1
公开(公告)日：2018-12-20
申请号：US16060262
申请日：2016-12-07
Applicant: SHELL OIL COMPANY
IPC: C07C29/132 , C07C31/20 , B01J19/18 , B01J19/24 , B01J21/06 , B01J23/22 , B01J23/26 , B01J23/28 , B01J23/30
Abstract: The invention provides a continuous process for the preparation of ethylene glycol and 1,2-propylene glycol from starting material comprising one or more saccharides, said process comprising providing a feedstock comprising said one or more saccharides in a solvent to a reactor, said reactor having supported therein a heterogeneous hydrogenation catalytic composition and contacting the feedstock therein directly with said heterogeneous hydrogenation catalytic composition and concurrently with a retro-aldol catalyst composition in the presence of hydrogen, wherein said reactor operates in an essentially plug flow manner.
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公开(公告)号：US20150336857A1
公开(公告)日：2015-11-26
申请号：US14412692
申请日：2013-07-01
Applicant: SHELL OIL COMPANY
Inventor： Leslie Andrew CHEWTER , Ye-Mon CHEN , Timothy Michael NISBET , Sivakumar SADASIVAN VIJAYAKUMARI , Jeroen VAN WESTRENEN
CPC classification number: C07C1/24 , B01J8/02 , B01J8/1845 , B01J2208/00362 , B01J2208/00752 , B01J2208/00902 , C07C1/20 , C07C2529/85 , Y02P30/42 , C07C11/04 , C07C11/06
Abstract: The present invention provides a process for preparing ethylene and/or propylene, wherein an oxygenate feedstock is contacted with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 500° C. to obtain a reactor effluent comprising ethylene and/or propylene and the oxygenate feedstock is contacted with the catalyst in a riser reactor having a reactor wall defining a flow trajectory towards a downstream outlet for reactor effluent, wherein at least oxygenate feedstock and catalyst are provided at one or more upstream inlets of the riser reactor and wherein a water quench medium is admitted to the riser reactor at one or more of locations along the length of the flow trajectory through a plurality of inlets distributed along the periphery of the reactor wall. The invention further provides a reaction system suitable for preparing ethylene and propylene.
Abstract translation: 本发明提供一种制备乙烯和/或丙烯的方法，其中在350-500℃的温度下，含氧化合物原料与含分子筛的催化剂接触，以获得包含乙烯和/ 或丙烯，并且含氧化合物原料在具有反应器壁的提升管反应器中与催化剂接触，所述反应器壁限定朝向下游出口进行反应器流出物的流动轨迹，其中在提升管反应器的一个或多个上游入口处提供至少含氧化合物原料和催化剂 并且其中水骤冷介质通过沿着反应器壁的周边分布的多个入口沿着流动轨迹的长度的一个或多个位置进入提升管反应器。 本发明还提供了适用于制备乙烯和丙烯的反应体系。
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公开(公告)号：US20150307411A1
公开(公告)日：2015-10-29
申请号：US14368547
申请日：2012-12-21
Inventor： Ye Mon CHEN , Timothy Michael NISBET , Sivakumar SADASIVAN VIJAYAKUMARI , Jeroen WESTRENEN
Abstract: The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of providing an oxygenate feed comprising oxygenate and C4 olefins to a first reaction zone; contacting the oxygenate feed with a first zeolite-comprising catalyst and retrieving from the first reaction zone a first effluent stream comprising at least C2 to C5 olefins; separating the first effluent stream into at least: a first product stream comprising C2 and/or C3 olefins; a second fraction comprising C4 olefins; a third fraction comprising C5 olefins; and recycling at least part of the second fraction to the first reaction zone as part of the oxygenate feed; providing an olefinic feed comprising C5 olefins to a second reaction zone, wherein the olefinic feed comprises at least part of the third fraction; and contacting in the second reaction zone the olefinic feed with a second zeolite-comprising catalyst at a temperature in the range of from 500 to 700° C. and retrieving from the second reaction zone a second effluent stream comprising at least C2 to C3 olefins.
Abstract translation: 本发明提供一种制备乙烯和/或丙烯的方法，包括以下步骤：向第一反应区提供含氧化合物和C 4烯烃的含氧化合物进料; 使含氧化合物进料与第一含沸石催化剂接触并从第一反应区回收包含至少C 2 -C 5烯烃的第一流出物流; 将第一流出物流分离成至少：包含C2和/或C3烯烃的第一产物流; 包含C4烯烃的第二级分; 包含C5烯烃的第三级分; 并且将至少部分第二级分再循环到第一反应区作为含氧化合物进料的一部分; 向第二反应区提供包含C5烯烃的烯烃进料，其中所述烯烃进料包含所述第三馏分的至少一部分; 并且在第二反应区中使烯属进料与第二含沸石催化剂在500-700℃的温度下接触，并从第二反应区回收包含至少C2-C3烯烃的第二流出物流。
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