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公开(公告)号：WO2018081796A3
公开(公告)日：2018-05-03
申请号：PCT/US2017/059287
申请日：2017-10-31
摘要： Described herein are systems and methods for delivering catalyst to a reaction vessel. The methods include the use of a positive displacement reciprocating piston system having a catalyst delivery housing that contains a piston system. The piston system includes a top section, a bottom section, and a catalyst holding space between the top and bottom section such that the piston system is movable between a first and a second position to inject catalyst from the catalyst holding space into the reaction vessel when the piston system is in the second position and fill the catalyst holding space with catalyst from a catalyst feed supply when the piston system is in the first position.
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公开(公告)号：WO2019133324A1
公开(公告)日：2019-07-04
申请号：PCT/US2018/065983
申请日：2018-12-17
摘要： Processes for controlling temperature in polymerization reactions are described as including a monomer recovery system. Monomer vapor is removed from pressurized head space of a horizontally disposed reaction vessel, condensed to a liquid and recycled back to the polymerization reaction in multiple streams that are fed to the reactor at multiple introduction points. The introduction feed points of recycle monomer can be spaced along the horizontal reactor to inject cool liquid monomer to allow for control of the temperature, pressure and viscosity of the mixture in the reaction chamber of the reactor.
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公开(公告)号：WO2019133338A1
公开(公告)日：2019-07-04
申请号：PCT/US2018/066219
申请日：2018-12-18
摘要： Processes for carrying out a bulk polymerization are described as including the combination of an organic solvent with a polymerization mixture discharged from a polymerization vessel to extend the polymerization reaction downstream of the vessel. Organic solvent is mixed with the discharged polymerization mixture to form a diluted reaction mixture for increasing conversion of unreacted monomer discharged from the polymerization vessel. The additional organic solvent added can provide temperature control as the diluted reaction mixture is transferred. The organic solvent can be added at various introduction points downstream of the outlet of the polymerization vessel.
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公开(公告)号：WO2018081796A2
公开(公告)日：2018-05-03
申请号：PCT/US2017/059287
申请日：2017-10-31
摘要： Described herein are systems and methods for delivering catalyst to a reaction vessel. The methods include the use of a positive displacement reciprocating piston system having a catalyst delivery housing that contains a piston system. The piston system includes a top section, a bottom section, and a catalyst holding space between the top and bottom section such that the piston system is movable between a first and a second position to inject catalyst from the catalyst holding space into the reaction vessel when the piston system is in the second position and fill the catalyst holding space with catalyst from a catalyst feed supply when the piston system is in the first position.
摘要翻译： 本文描述了用于将催化剂输送至反应容器的系统和方法。 该方法包括使用具有包含活塞系统的催化剂输送壳体的正排量往复活塞系统。 活塞系统包括顶部部分，底部部分和在顶部部分和底部部分之间的催化剂保持空间，使得活塞系统可在第一位置和第二位置之间移动，以当催化剂从催化剂保持空间进入反应容器时 当活塞系统处于第一位置时，活塞系统处于第二位置并用来自催化剂供给源的催化剂填充催化剂容纳空间。
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