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公开(公告)号：US20090062495A1
公开(公告)日：2009-03-05
申请号：US12229499
申请日：2008-08-22
申请人： Eric Cheluget , Arun Sood , Rob VanAsseldonk , Ryan McCabe
发明人： Eric Cheluget , Arun Sood , Rob VanAsseldonk , Ryan McCabe
IPC分类号： C08F136/02 , C08F112/08 , C08F110/02 , C08F110/06
CPC分类号： C08F6/02 , C08C2/00 , C08F10/02 , C08F110/02 , Y10S585/95 , C08F2/06 , C08F2/01 , C08F2500/12
摘要： A process for the solution polymerization of olefins with improved on-stream time is provided. The solution polymerization process of the current invention comprises a method for the on-line removal of foulant material from one or more heat exchangers downstream of a polymerization reactor. Removal of foulant material is accomplished by deliberately applying a positive pressure differential across a heat exchanger. In the process of the current invention, reactor shut down is not required for the purpose of cleaning foulant material from a heat exchanger.
摘要翻译： 提供了一种具有改进的流动时间的烯烃溶液聚合方法。 本发明的溶液聚合方法包括从聚合反应器下游的一个或多个热交换器中直接除去污染物质的方法。 通过故意在热交换器上施加正压差来实现污垢物质的去除。 在本发明的方法中，为了从热交换器清洗污垢物质，不需要反应器关闭。
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公开(公告)号：US20090062465A1
公开(公告)日：2009-03-05
申请号：US12229062
申请日：2008-08-19
申请人： Eric Cheluget , Arun Sood
发明人： Eric Cheluget , Arun Sood
IPC分类号： C08F297/08
CPC分类号： C08F10/02 , C08F6/02 , C08F110/02 , Y02P20/124 , C08F2/01 , C08F2/06 , C08F2500/12
摘要： The current invention provides a method of improving the efficiency of one or more heat exchangers used in cooperation with a high temperature solution polymerization process. Addition of surface active agents, such as C6 to C22 carboxylic acids, to a two phase liquid-liquid polymer solution downstream of a reactor system and upstream of a heat exchanger system can increase the efficiency of heat exchange by more than 10%.
摘要翻译： 本发明提供一种提高与高温溶液聚合方法配合使用的一种或多种热交换器的效率的方法。 将表面活性剂如C6至C22羧酸加入到反应器系统下游和热交换器系统的上游的两相液 - 液聚合物溶液中，可将热交换效率提高10％以上。
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公开(公告)号：US09139784B2
公开(公告)日：2015-09-22
申请号：US13313234
申请日：2011-12-07
申请人： Philippa Hocking , Fazle Sibtain , Eric Cheluget
发明人： Philippa Hocking , Fazle Sibtain , Eric Cheluget
摘要： In the solution polymerization of ethylene co and homopolymers the solution leaving the reactor is heated to separate polymer from solvent and residual monomers. Fouling in the heat exchanger may be reduced by adding to the solution from 0.01 to 100 ppm by weight of a polyoxyalkylene compound of the formula HO—(CH2CH2O)M[CH2CH(CH3)O]N(CH2CH2O)PH wherein M, N and P each represent the average number of repeating units and M is from 0 to 20, N is from 2 to 50 and P is from 0 to 20 and passing the solution through a heat exchanger to increase its temperature by at least 20° C.
摘要翻译： 在乙烯共聚物和均聚物的溶液聚合中，离开反应器的溶液被加热以从溶剂和残余单体中分离出聚合物。 通过向溶液中加入0.01至100重量ppm的式HO-（CH 2 CH 2 O）M [CH 2 CH（CH 3）O] N（CH 2 CH 2 O）PH的聚氧化烯化合物，可以减少热交换器中的结垢，其中M，N和 P表示重复单元的平均数，M为0〜20，N为2〜50，P为0〜20，使溶液通过热交换器使其温度升高至少20℃。
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公开(公告)号：US20160002370A1
公开(公告)日：2016-01-07
申请号：US14771355
申请日：2014-03-04
发明人： Terri A Price , Fazle Sibtain , Eric Cheluget
IPC分类号： C08F10/02
CPC分类号： C08F10/02 , C08F6/003 , C08F6/02 , C08J11/02 , C08L23/04 , C08F2/01 , C08F2/06 , C08F210/16 , C08F210/14
摘要： An improved solution polymerization process wherein energy consumption is reduced comprising: i) injecting ethylene, solvent, catalyst, α-olefins and hydrogen into at least one reactor to produce a polyethylene in a single liquid phase solution; ii) deactivating the single liquid phase solution; iii) passing the deactivated solution into a vapor/liquid separator forming a bottom stream of polyethylene rich solvent and a gaseous overhead stream; iv) passing not more than 40% of the gaseous overhead stream to distillation; v) condensing the remainder of the gaseous overhead stream to form a recycle stream, while generating low pressure steam; vi) passing the recycle stream through a means for oligomer removal; vii) passing the recycle stream through a lights separator; viii) passing the recycle stream through a purification step; ix) collecting the recycle stream in a recycle drum, passing the recycle stream through a pump and injecting a high pressure recycle stream into said reactors.
摘要翻译： 改进的溶液聚合方法，其中能量消耗降低，包括：i）将乙烯，溶剂，催化剂，α-烯烃和氢气注入至少一个反应器中以在单一液相溶液中制备聚乙烯; ii）使单一液相溶液失活; iii）将失活的溶液通入形成富含聚乙烯的溶剂和气态塔顶液流的底部流的气/液分离器; iv）将不超过40％的塔顶气流送入蒸馏; v）冷凝剩余的气态塔顶物流以形成循环流，同时产生低压蒸汽; vi）使再循环流通过用于低聚物去除的装置; vii）使循环流通过灯分离器; viii）使循环流通过净化步骤; ix）在再循环鼓中收集循环物流，使循环流通过泵并将高压循环物流注入所述反应器。
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公开(公告)号：US07919568B2
公开(公告)日：2011-04-05
申请号：US12229062
申请日：2008-08-19
申请人： Eric Cheluget , Arun Sood
发明人： Eric Cheluget , Arun Sood
CPC分类号： C08F10/02 , C08F6/02 , C08F110/02 , Y02P20/124 , C08F2/01 , C08F2/06 , C08F2500/12
摘要： The current invention provides a method of improving the efficiency of one or more heat exchangers used in cooperation with a high temperature solution polymerization process. Addition of surface active agents, such as C6 to C22 carboxylic acids, to a two phase liquid-liquid polymer solution downstream of a reactor system and upstream of a heat exchanger system can increase the efficiency of heat exchange by more than 10%.
摘要翻译： 本发明提供一种提高与高温溶液聚合方法配合使用的一种或多种热交换器的效率的方法。 将表面活性剂如C6至C22羧酸加入到反应器系统下游和热交换器系统的上游的两相液 - 液聚合物溶液中，可将热交换效率提高10％以上。
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公开(公告)号：US07650930B2
公开(公告)日：2010-01-26
申请号：US12229499
申请日：2008-08-22
申请人： Eric Cheluget , Arun Sood , Rob VanAsseldonk , Ryan McCabe
发明人： Eric Cheluget , Arun Sood , Rob VanAsseldonk , Ryan McCabe
CPC分类号： C08F6/02 , C08C2/00 , C08F10/02 , C08F110/02 , Y10S585/95 , C08F2/06 , C08F2/01 , C08F2500/12
摘要： A process for the solution polymerization of olefins with improved on-stream time is provided. The solution polymerization process of the current invention comprises a method for the on-line removal of foulant material from one or more heat exchangers downstream of a polymerization reactor. Removal of foulant material is accomplished by deliberately applying a positive pressure differential across a heat exchanger. In the process of the current invention, reactor shut down is not required for the purpose of cleaning foulant material from a heat exchanger.
摘要翻译： 提供了一种具有改进的流动时间的烯烃溶液聚合方法。 本发明的溶液聚合方法包括从聚合反应器下游的一个或多个热交换器中直接除去污染物质的方法。 通过故意在热交换器上施加正压差来实现污垢物质的去除。 在本发明的方法中，为了从热交换器清洗污垢物质，不需要反应器关闭。
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公开(公告)号：US20130149657A1
公开(公告)日：2013-06-13
申请号：US13313234
申请日：2011-12-07
申请人： Philippa Hocking , Fazle Sibtain , Eric Cheluget
发明人： Philippa Hocking , Fazle Sibtain , Eric Cheluget
IPC分类号： F23L15/04
摘要： In the solution polymerization of ethylene co and homopolymers the solution leaving the reactor is heated to separate polymer from solvent and residual monomers. Fouling in the heat exchanger may be reduced by by adding to the solution from 0.01 to 100 ppm by weight of a polyoxyalkylene compound of the formula HO—(CH2CH2O)M[CH2CH(CH3)O]N(CH2CH2O)PH wherein M, N and P each represent the average number of repeating units and M is from 0 to 20, N is from 2 to 50 and P is from 0 to 20 and passing the solution through a heat exchanger to increase its temperature by at least 20° C.
摘要翻译： 在乙烯共聚物和均聚物的溶液聚合中，离开反应器的溶液被加热以从溶剂和残余单体中分离出聚合物。 通过向溶液中加入0.01至100重量ppm的式HO-（CH 2 CH 2 O）M [CH 2 CH（CH 3）O] N（CH 2 CH 2 O）PH的聚氧化烯化合物，可以减少热交换器中的结垢，其中M，N P表示重复单元的平均数，M为0〜20，N为2〜50，P为0〜20，使溶液通过热交换器使其温度升高至少20℃。
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公开(公告)号：US08431096B2
公开(公告)日：2013-04-30
申请号：US12931939
申请日：2011-02-15
申请人： Eric Cheluget , Arun Sood
发明人： Eric Cheluget , Arun Sood
CPC分类号： C08F4/6592 , B01J8/1836 , B01J2208/00637 , C08F6/02 , C08F10/02 , C08F110/02 , C08F210/16 , Y02P20/124 , C08L23/04 , C08F2/01 , C08F2/06 , C08F2500/12 , C08F210/14
摘要： The current invention provides a method of improving the efficiency of one or more heat exchangers used in cooperation with a high temperature solution polymerization process. Addition of surface active agents, such as C6 to C22 carboxylic acids, to a two phase liquid-liquid polymer solution downstream of a reactor system and upstream of a heat exchanger system can increase the efficiency of heat exchange by more than 10 %.
摘要翻译： 本发明提供一种提高与高温溶液聚合方法配合使用的一种或多种热交换器的效率的方法。 将表面活性剂如C6至C22羧酸加入到反应器系统下游和热交换器系统的上游的两相液 - 液聚合物溶液中，可将热交换效率提高10％以上。
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公开(公告)号：US20110144254A1
公开(公告)日：2011-06-16
申请号：US12931939
申请日：2011-02-15
申请人： Eric Cheluget , Arun Sood
发明人： Eric Cheluget , Arun Sood
CPC分类号： C08F4/6592 , B01J8/1836 , B01J2208/00637 , C08F6/02 , C08F10/02 , C08F110/02 , C08F210/16 , Y02P20/124 , C08L23/04 , C08F2/01 , C08F2/06 , C08F2500/12 , C08F210/14
摘要： The current invention provides a method of improving the efficiency of one or more heat exchangers used in cooperation with a high temperature solution polymerization process. Addition of surface active agents, such as C6 to C22 carboxylic acids, to a two phase liquid-liquid polymer solution downstream of a reactor system and upstream of a heat exchanger system can increase the efficiency of heat exchange by more than 10%.
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