在​聚合​化​設備​中​最小化​從​一​聚合物​級​至​另一​聚合物​級​之​過渡​時間​的​方法

源语言标题
(TW201613983) 在​聚合​化​設備​中​最小化​從​一​聚合物​級​至​另一​聚合物​級​之​過渡​時間​的​方法
公开号/公开日
TW201613983 A 2016-04-16 [TW201613983] / 2016-04-16
申请号/申请日
2015TW-0129626 / 2015-09-08
发明人
COSTA LIBORIO IVANO;CODARI FABIO;
申请人
SULZER;
主分类号
IPC分类号
C08F-002/01
摘要
(TW201613983) 本​發明​係​關於,降低​聚合​化​設備​中​進行​之​連續​聚合​製程​中​從​第一​聚合物​級​至​第二​聚合物​級​之​改變​過程​中​過渡​時間​及/或​超出​規範​之​聚合物​廢物​的​方法,其中- 該​聚合​化​設備​係​包含​至少​一​個​逆​混合​反應器,- 於​聚合​製程​之前​及/或​過程​中,將​至少​一種​單體​及至​少​一種​選​自​催化劑、助​催化劑、聚合​起始​劑、共​單體、鏈​轉移​劑、分支​劑、溶劑、及​兩​種​或​更​多種​前述​劑​之​任意​組合​所​組成​群組​之​處理​劑​加入​該​至少​一​個​逆​混合​反應器​中,其中,引入​該​至少​一​個​逆​混合​反應器​中​之​饋​料​內​該​至少​一種​所加​處理​劑​之​一者​或​多者​的​濃度,此​濃度​係​作為​時間​之​函數​從​與​第一​聚合物​級​相關​之​第一​值​變化​為​與​第二​聚合物​級​相關​之​最​終值,- 該​第一​聚合物​級​與​該​第二​聚合物​級​係​一​個​或​多個​與​待​製造​之​聚合物​分子量​相關​的​參數,及/或​一​個​或​多個​與​待​製造​之​聚合物​組成​相關​的​參數,及/或​一​個​或​多個​與​待​製造​之​聚合物​結構​相關​的​參數,及/或​一​個​或​多個​與​待​製造​之​聚合物​量​相關​的​參數,其中,於​該​至少​一種​所加​處理​劑​之​濃度​從​第一​值​至​最​終值​變化​的​過程​中,一​個​或​多個​中間值​係​被​調節,其中,該​一​個​或​多個​中間值​的​至少​一​個,較佳​大部分​且​更佳​全部​係​更​接近​最​終值​而非​第一​值,其中,該​一​個​或​多個​中間值​的​至少​一​個,較佳​大部​分之​每一​個​且​更佳​全部​之​每一​個,與​該​第一​值​的​絕對​差​係​大於​該​最​終值​與​第一​值​的​絕對​差,其中,該​一​個​或​多個​中間值​係​維持​一定​時間,該​時間​係​基於​僅​於​該​至少​一​個​逆​混合​反應器​中​之​滯留​時間​及​輸入​與​輸出​該​反應器​及/或​聚合​化​設備​之間​的​穩態​相關性​而​計算,以及,該​方法​係​不需​動態​建模​而​施行。 The present invention relates to a method for reducing the transition time and/or the polymer waste being out of the specification during the change from a first polymer grade to a second polymer grade in a continuous polymerization process conducted in a polymerization plant, wherein - the polymerization plant comprises at least one back-mixing reactor, - at least one monomer and at least one processing agent selected from the group consisting of catalysts, co-catalysts, polymerization initiators, co-monomers, chain-transfer agents, branching agents, solvents and arbitrary combinations of two or more of the aforementioned agents are added be-fore and/or during the polymerization process into the at least one back-mixing reactor, wherein the concentration of one or more of the at least one added processing agent in the feed introduced into the at least one back-mixing reactor is varied as a function of time from a first value associated with the first polymer grade to a final value associated with the second pol-ymer grade, - the first polymer grade and the second polymer grade are one or more parameters related to the molecular weight of the polymer to be produced and/or one or more parameters related to the composition of the polymer to be produced and/or one or more parameters related to the structure of the polymer to be produced and/or one or more parameters related to the amount of the polymer to be produced, wherein during the variation of the concentration of the at least one added pro-cessing agent from the first value to the final value one or more intermediate val-ues are adjusted, wherein at least one, preferably the majority and more preferably all of the one or more intermediate values are closer to the final value than to the first value, wherein the absolute difference between the at least one, preferably each of the majority and more preferably each of all of the one or more intermedi-ate values from the first value is greater than the absolute difference between the final and the first value, wherein the one or more intermediate values are main-tained for a time which is calculated on the basis of only residence time in the at least one back-mixing reactor and steady-state correlations between input and output of the reactor and/or of the polymerization plant, and wherein the method is performed without performing dynamic modelling.
地址
代理人
代理机构
;
优先权号
2014EP-0184404 2014-09-11
主权利要求

        
法律状态
(TW201613983) LEGAL DETAILS FOR TW201613983  Actual or expected expiration date=2035-09-08    Legal state=ALIVE    Status=PENDING     Event publication date=2015-09-08  Event code=TW/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=TW TW104129626  Application date=2015-09-08  Standardized application number=2015TW-0129626     Event publication date=2016-04-16  Event code=TW/A  Event indicator=Pos  Event type=Examination events  Laid open application for patent or patent of addition  Publication country=TW  Publication number=TW201613983  Publication stage Code=A  Publication date=2016-04-16  Standardized publication number=TW201613983
专利类型码
A
国别省市代码
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