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    • 1. 发明申请
    • A FLUIDIZED CATALYST STRIPPING UNIT FOR DISPLACING ENTRAINED GAS FROM CATALYST PARTICLES
    • 流化床催化裂化装置用于从催化剂颗粒中排出气体
    • WO2017095953A1
    • 2017-06-08
    • PCT/US2016/064260
    • 2016-11-30
    • DOW GLOBAL TECHNOLOGIES LLC.
    • PRETZ, Matthew T.
    • B01J8/00C07C5/333C07C11/06
    • B01J8/34B01J8/0055B01J2208/00991C07C5/333C10G11/08C07C11/06
    • A fluidized catalyst stripping unit for displacing entrained gas from catalyst particles comprising: a vessel housing a two stage cyclonic separation section which comprises one or more primary cyclonic separation devices and one or more secondary cyclones; a stripping section which comprises internals; and an inlet in fluid communication with a catalytic reactor to feed a particulate- fluid suspension to the two stage cyclonic separation section; wherein each primary cyclonic separation device comprises an internal cylindrical surface to separate a major fraction of the particulates from the suspension and form a vortex of reduced particulate content; a particulate discharge outlet from each secondary cyclone to the stripping section; wherein the particulate discharge outlet of the secondary cyclone is submerged in a catalyst bed located above the stripper internals, and wherein the stripping section comprises one or more bubble breaking grids within the catalyst bed and above the stripping internals is provided.
    • 一种用于从催化剂颗粒中排出夹带气体的流化催化剂汽提单元,其包括:容纳两级旋风分离部分的容器,所述两级旋风分离部分包括一个或多个主旋风分离装置和一个或多个第二旋风器; 包含内部部件的汽提部分; 以及与催化反应器流体连通的入口,以将颗粒流体悬浮液供给到两级旋风分离部分; 其中每个主旋风分离装置包括内部圆柱形表面以将大部分颗粒与悬浮液分离并形成颗粒减少的旋涡; 从每个二级旋风分离器到汽提段的颗粒排出口; 其中所述二级旋风分离器的颗粒排出口浸没在位于所述汽提塔内部上方的催化剂床中,并且其中所述汽提部分包括在所述催化剂床内并且在所述汽提内件上方的一个或多个破泡格栅。
    • 5. 发明申请
    • PROCESS FOR DEGASSING AND BUFFERING POLYOLEFIN PARTICLES OBTAINED BY OLEFIN POLYMERIZATION
    • 通过烯烃聚合获得的脱脂和缓冲聚烯烃颗粒的方法
    • WO2014090856A1
    • 2014-06-19
    • PCT/EP2013/076185
    • 2013-12-11
    • BASELL POLYOLEFINE GMBH
    • PENZO, GiuseppeMEI, GiuliaMEI, GabrieleDE LUCIA, AntonioBAITA, Pietro
    • C08F6/00C08F10/00C08L23/00
    • C08F6/005B01J8/005B01J8/1836B01J8/24B01J2208/00176B01J2208/00274B01J2208/00991B01J2219/00006B29B9/12B29B13/00B29B13/022B29B2013/005B29C47/0004B29C47/0009B29K2023/00B29L2031/772C08F10/00C08L23/00
    • Process for preparing a polyolefin polymer comprising the steps of a) forming a particulate polyolefin polymer by polymerizing one or more olefins in the presence of a polymerization catalyst system in a polymerization reactor; b) discharging the formed polyolefin particles from the polymerization reactor; c) degassing the polyolefin particles by a process comprising at least a final step of contacting the polyolefin particles with a nitrogen stream in a degassing vessel; and d) transferring the polyolefin particles from the vessel, in which the contacting of the polyolefin particles with the nitrogen stream is carried out, to a melt mixing device, in which the polyolefin particles are melted, mixed and thereafter pelletized, without passing the particles through a buffering device, wherein the degassing vessel is only partly filled with polyolefin particles and the empty volume within the degassing vessel is sufficient to take up additional polyolefin particles for at least 3 hours if the transfer of polyolefin particles of step d) from the degassing vessel to the melt mixing device is discontinued and the discharge of polyolefin particles from the polymerization reactor according to step b) is continued with unchanged rate.
    • 制备聚烯烃聚合物的方法,包括以下步骤:a)通过在聚合反应器中在聚合催化剂体系存在下聚合一种或多种烯烃来形成颗粒聚烯烃聚合物; b)从聚合反应器中排出形成的聚烯烃颗粒; c)通过包括至少最后步骤的聚烯烃颗粒脱气,所述最后步骤使聚烯烃颗粒与脱气容器中的氮气流接触; 和d)将聚烯烃颗粒与氮气流的接触进行的容器中的聚烯烃颗粒转移到熔融混合装置中,其中聚烯烃颗粒被熔化,混合并随后造粒,而不通过颗粒 通过缓冲装置,其中脱气容器仅部分地填充有聚烯烃颗粒,并且如果步骤d)的聚烯烃颗粒从脱气转移,则脱气容器内的空体积足以吸收另外的聚烯烃颗粒至少3小时 中断熔融混合装置的容器,并且按照步骤b)从聚合反应器排出的聚烯烃颗粒以不变的速率继续进行。
    • 8. 发明申请
    • REGENERATOR
    • 再生器
    • WO02008359A1
    • 2002-01-31
    • PCT/EP2001/008291
    • 2001-07-17
    • C10G11/18
    • C10G11/182B01J8/0025B01J8/003B01J8/0055B01J8/1809B01J8/1827B01J8/1872B01J8/26B01J2208/00752B01J2208/00761B01J2208/00849B01J2208/00902B01J2208/00938B01J2208/00991
    • Regenerator vessel provided with means to supply catalyst particles, means to supply an oxygenate gas, means to discharge regenerated catalyst, means to discharge combustion gases from the vessel and means to separate entrained catalyst from the combustion gases, which vessel also comprises, in use, a fluidised bed zone of catalyst at its lower end, wherein in the fluidised bed zone a vertically extending partition, which partition is provided with one or more openings, is present dividing the fluidised bed zone in a dense phase fluidised bed zone and a fast-fluidised bed zone, the dense phase fluidised bed zone provided with the means to supply catalysts and the fast-fluidised bed zone provided with the means to supply an oxygenate gas at its lower end.
    • 提供了提供催化剂颗粒的装置的再生器容器,用于提供含氧气体的装置,用于排出再生催化剂的装置,用于从容器排放燃烧气体的装置以及将来自燃烧气体的夹带催化剂分离的装置,该容器在使用中还包括, 催化剂在其下端的流化床区域,其中在流化床区域中具有垂直延伸的隔板,该隔板设置有一个或多个开口,其将致密相流化床区域中的流化床区域分开, 流化床区,密相流化床区带有提供催化剂的装置和快速流化床区,其具有在其下端供应含氧气体的装置。
    • 9. 发明申请
    • PROCESS FOR THE POLYMERIZATION OF OLEFINS
    • 烯烃聚合方法
    • WO2017025331A1
    • 2017-02-16
    • PCT/EP2016/067903
    • 2016-07-27
    • SABIC GLOBAL TECHNOLOGIES B.V.
    • BANAT, YahyaALSHAIBAN, Ahmad, AbdullahAL-HUMAIDAN, Osamah
    • C08F2/01B01J8/08C08F110/02C08F210/02C08F2/34C08F10/02C08F110/06C08F210/06C08F10/06
    • C08F2/34B01J8/08B01J8/1818B01J8/1827B01J8/1836B01J2208/00176B01J2208/00274B01J2208/00991C08F2/01C08F10/02C08F10/06C08F110/02C08F110/06C08F210/02C08F210/06
    • The present invention relates to a process for the continuous preparation of a polyolefin in a reactor from one or more α-olefin monomers of which at least one is ethylene or propylene, wherein the reactor comprises a fluidized bed, an expanded section located at or near the top of the reactor, a distribution plate located at the lower part of the reactor and an inlet for a recycle stream located under the distribution plate, wherein the process comprises - feeding a polymerization catalyst to the fluidized bed in the area above the distribution plate - feeding the one or more α-olefin monomers to the reactor - withdrawing the polyolefin from the reactor - circulating fluids from the top of the reactor to the bottom of the reactor, wherein the circulating fluids are cooled using a heat exchanger, resulting in a cooled recycle stream comprising liquid, and wherein the cooled recycle stream is introduced into the reactor using the inlet for the recycle stream wherein a stream comprising a thermal run away reducing agent (TRRA-containing stream) is introduced into the expanded section during at least part of the polymerization process, wherein said TRRA-containing stream is brought into contact with at least part of the interior surface of the expanded section.
    • 本发明涉及一种在反应器中从一种或多种α-烯烃单体连续制备聚烯烃的方法,其中至少一种是乙烯或丙烯,其中反应器包括流化床,位于或接近 反应器的顶部,位于反应器下部的分配板和位于分配板下方的再循环流的入口,其中该方法包括 - 在分配板上方的区域中向流化床供入聚合催化剂 - 将一种或多种α-烯烃单体进料到反应器中 - 从反应器中取出聚烯烃 - 将反应器的顶部循环流体循环到反应器的底部,其中循环流体使用热交换器冷却,得到 包括液体的冷却循环物流,并且其中将冷却的循环物流引入反应器中,使用用于再循环流的入口, 在聚合过程的至少一部分期间,将热去除还原剂(含TRRA的物流)引入到扩展部分中,其中所述含TRRA的物流与扩展部分的内表面的至少一部分接触。