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    • 6. 发明授权
    • Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons
    • 从包含C4烯烃,二甲醚和C5 +烃的产物流中回收C4烯烃
    • US07060865B2
    • 2006-06-13
    • US10292232
    • 2002-11-12
    • Zhong Yi DingJames Richardson Lattner
    • Zhong Yi DingJames Richardson Lattner
    • C07C7/04C07C7/11C07C41/42C07C41/38
    • C07C41/38C07C41/42Y02P30/464C07C43/043
    • Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first stream is separated into a second stream comprising the C4 olefins and the DME and a third stream comprising the C5+ hydrocarbons and the methanol. The second stream is directed to a DME absorption unit, wherein the second stream contacts water under conditions effective to separate the C4 olefins from the DME. Also disclosed is a process including contacting the first stream with water in a methanol removal unit under conditions effective to separate remove the methanol therefrom; distilling the methanol-depleted stream to remove C5+ hydrocarbon components, and contacting the stream with water in a DME removal unit under conditions effective to form an overhead stream comprising the C4 olefins and a bottoms stream comprising the DME.
    • 公开了从含有C4烯烃的流中除去DME的方法。 该方法包括提供包含C4烯烃,C5 +烃,DME和甲醇的第一流。 将第一流分离成包含C4烯烃和DME的第二料流和包含C5 +烃和甲醇的第三料流。 第二流被引导到DME吸收单元,其中第二流在有效地将C 4烯烃与DME分离的条件下与水接触。 还公开了一种方法,包括在有效分离除去甲醇的条件下,使第一流与甲醇去除单元中的水接触; 蒸馏除去甲醇的流以除去C5 +烃组分,并在有效形成包含C 4烯烃的塔顶物流和包含DME的塔底物流的条件下,在DME去除单元中使该物流与水接触。
    • 10. 发明授权
    • Monomer recycle process for fluid phase in-line blending of polymers
    • 用于流体相在线共混聚合物的单体循环过程
    • US08080610B2
    • 2011-12-20
    • US12074496
    • 2008-03-04
    • Gabor KissAlan Anthony GaluskaJames Richardson Lattner
    • Gabor KissAlan Anthony GaluskaJames Richardson Lattner
    • C08F2/04C08F2/06
    • C08F6/003C08F10/06C08F110/06C08F210/06C08F2/001C08F2500/15C08F2500/03C08F2500/12C08F2500/20C08F210/16
    • A monomer recycle process for fluid phase in-line blending of polymers is provided. In one form, the monomer recycle process includes providing a first group (G1) of one or more reactor trains and a second group (G2) of one or more reactor trains and one or more separators fluidly connected to G1 and one separator fluidly connected to G2; polymerizing in each reactor train of G1 and G2 olefin monomers to form homogenous fluid phase polymer-monomer mixtures wherein each of the G1 and G2 reactor trains have at least one common monomer; passing the reactor effluents from the one or more G1 reactor trains through the one or more G1 separators to separate a monomer-rich phase from a polymer-enriched phase; passing the polymer-enriched phase and the reactor effluents from the one or more G2 reactor trains into the G2 separator (separator-blender) to separate another monomer-rich phase from a polymer-rich blend; recycling to one or more G1 reactor trains the separated monomer-rich phase from the one or more G1 separators; and recycling to one or more G2 reactor trains the separated monomer-rich phase from the G2 separator. The polymer-rich blend is conveyed to a downstream finishing stage for further monomer stripping, drying and/or pelletizing to form a polymer product blend.
    • 提供了用于聚合物的流体相在线共混的单体再循环方法。 在一种形式中,单体再循环方法包括提供一个或多个反应器列的第一组(G1)和一个或多个反应器列的第二组(G2)和与G1流体连接的一个或多个分离器和一个流体连接到 G2; 在G1和G2烯烃单体的每个反应器序列中聚合以形成均相流体相聚合物 - 单体混合物,其中每个G1和G2反应器列具有至少一个共同的单体; 使来自一个或多个G1反应器列的反应器流出物通过一个或多个G1分离器以将富含单体的相与富集聚合相分离; 将聚合物富集相和反应器流出物从一个或多个G2反应器列车通入G2分离器(分离器 - 共混器)中,以从富含聚合物的共混物中分离另一富含单体的相; 将一个或多个G1反应器再循环到一个或多个G1分离器中,从而分离出富含单体的相。 并循环到一个或多个G2反应器中,从G2分离器中将分离的富含单体的相进行培养。 将富含聚合物的共混物输送到下游整理阶段,以进一步进行单体汽提,干燥和/或造粒以形成聚合物产物混合物。