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公开(公告)号：US20240299897A1
公开(公告)日：2024-09-12
申请号：US18026905
申请日：2022-07-05
申请人： LG Chem, Ltd.
发明人： Moon Sub Hwang , Hong Min Lee , Jeong Seok Lee , Jong Hun Song , Kyung Seog Youk
CPC分类号： B01J10/002 , B01J19/0013 , B01J2219/00083
摘要： Provided is a bubble column reactor including a reaction zone configured to carry out a reaction of a gaseous reactant in a liquid reaction medium; a disengaging section provided above the reaction zone and configured such that a first gas stream rising from the reaction zone is introduced into the disengaging section; and a condensation zone provided above the disengaging section and configured such that a second gas stream rising from the disengaging section is introduced into the condensation zone, wherein a diameter of the condensation zone is greater than a diameter of the disengaging section.
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公开(公告)号：US20240246053A1
公开(公告)日：2024-07-25
申请号：US18017315
申请日：2022-06-17
申请人： LG Chem, Ltd.
发明人： Moon Sub Hwang , Hong Min Lee , Jeong Seok Lee , Jong Hun Song , Kyung Seog Youk
IPC分类号： B01J10/00 , B01J19/00 , B01J19/24 , C08F110/02
CPC分类号： B01J10/002 , B01J19/0013 , B01J19/2415 , C08F110/02 , B01J2219/00083
摘要： A bubble column reactor includes a reaction zone in which a reaction of a gaseous reactant is carried out in a liquid reaction medium, a first disengaging section provided above the reaction zone and into which a first effluent stream rising from the reaction zone is introduced, and a condensation zone provided above the first disengaging section. The bubble column reactor's condensation zone diameter is smaller than the diameter of the first disengaging section.
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公开(公告)号：US11938457B2
公开(公告)日：2024-03-26
申请号：US17432083
申请日：2020-11-13
申请人： LG CHEM, LTD.
发明人： Hong Min Lee , Jeong Seok Lee , Jong Hun Song , Kyung Seog Youk , Dong Kwon Lee , Moon Sub Hwang
CPC分类号： B01J19/18 , B01J4/002 , B01J4/004 , B01J19/006 , B01J19/0066 , C07C2/08 , B01J2219/00247 , B01J2219/00779
摘要： The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.
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公开(公告)号：US10287229B2
公开(公告)日：2019-05-14
申请号：US15752841
申请日：2016-10-17
申请人： LG CHEM, LTD.
发明人： Yoon Jae Min , Se Won Baek , Jong Hun Song , Sul Hee Yoo
摘要： A method of continuously recovering (meth)acrylic acid is provided. The method of continuously recovering (meth)acrylic acid according to the present disclosure enables use of a natural circulation type of reboiler which does not require an operating part in a destructive distillation process of recovering (meth)acrylic acid from a (meth)acrylic acid waste liquid, and therefore, stable operation of the continuous process may be achieved while simplifying equipment configuration.
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公开(公告)号：US20240293792A1
公开(公告)日：2024-09-05
申请号：US18026410
申请日：2022-07-25
申请人： LG Chem, Ltd.
发明人： Kyung Seog Youk , Joon Ho Shin , Jong Hun Song , Jeong Seok Lee , Hong Min Lee , Moon Sub Hwang
CPC分类号： B01J19/06 , B01D9/0063 , B01J4/001 , B01J19/002 , C07C2/06 , B01D2009/0086 , B01J2204/005 , B01J2219/00164
摘要： Provided is a system for transferring reaction solution, including: a reactor that receives and reacts a feed stream to form a reaction solution; a reactor discharge pipe that is provided on a side portion of the reactor at a position corresponding to a surface height of the reaction solution in the reactor and connected to a precipitation tank to transfer the reaction solution from the reactor to the precipitation tank; and a precipitation tank that precipitates a polymer contained in the reaction solution to form a supernatant.
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公开(公告)号：US20240286099A1
公开(公告)日：2024-08-29
申请号：US18026032
申请日：2022-07-01
申请人： LG Chem, Ltd.
发明人： Hong Min Lee , Joon Ho Shin , Jeong Seok Lee , Moon Sub Hwang , Jong Hun Song , Kyung Seog Youk
CPC分类号： B01J4/004 , B01J8/1818 , B01J8/22 , B01J2208/00911
摘要： Provided is a sparger including: a main body including a plurality of holes, a protruding pipe extending upward along an outer circumferential surface of the plurality of holes, and a side pipe extending from a side surface of the protruding pipe.
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公开(公告)号：US11511255B2
公开(公告)日：2022-11-29
申请号：US17267407
申请日：2020-05-20
申请人： LG CHEM, LTD.
发明人： Jong Hun Song , Jeong Seok Lee , You Na Kim , Hong Min Lee , Moon Sub Hwang
摘要： Provided is an apparatus for preparing oligomer including: a reactor for carrying out oligomerization reaction by supplying a monomer stream and a solvent stream; and line 1 and line 2 which are separately provided in a lower side of the reactor, wherein line 1 includes a first level control valve and line 2 includes a second level control valve, and the reactor is periodically alternately operated in first operation mode and second operation mode, thereby switching a pipe through which the product is discharged, so that a plugging phenomenon of the pipe through which the product is discharged and the valve can be prevented.
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公开(公告)号：US10414711B2
公开(公告)日：2019-09-17
申请号：US15752815
申请日：2016-11-21
申请人： LG CHEM, LTD.
发明人： Jong Hun Song , Se Won Baek , Sul Hee Yoo , Yoon Jae Min
IPC分类号： C07C51/347 , C07C51/48 , C07C51/44 , C07C51/09 , C07C57/04 , C07C67/58 , C07C67/54 , C07C69/54
摘要： A method of preparing (meth)acrylic acid by using a reaction distillation apparatus including a reaction distillation tower, and a natural circulation type of heat exchanger as a heat source for the reaction distillation tower. The reaction distillation tower a vessel, where decomposition of Michael adducts occurs, connected to a distillation tower, where distillation of decomposition products occurs. The method includes the following steps: feeding a waste liquid to the reaction distillation apparatus after passing through the heat exchanger, wherein the waste liquid is fed to a lower portion of the heat exchanger via a first input port; feeding a gas, separately from the waste liquid via a second input port, to the lower portion of the heat exchanger, and producing and recovering (meth)acrylic acid while the waste liquid is circulated in the reaction distillation apparatus by the gas which is fed separately from the waste liquid.
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公开(公告)号：US09962625B2
公开(公告)日：2018-05-08
申请号：US14903206
申请日：2014-07-21
申请人： LG CHEM, LTD.
发明人： Se Won Baek , Jong Hun Song , Sul Hee Yoo
摘要： This disclosure relates to a method for continuous recovery of (meth)acrylic acid and an apparatus used for the recovery method. The method of continuous recovery of (meth)acrylic acid according to the present invention may remarkably reduce the amount of extraction solvent used and energy consumption of the total process, and minimize polymerization of (meth)acrylic acid in the recovery process, thus enabling stable recovery of (meth)acrylic acid and operation of a continuous process.
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公开(公告)号：US12017209B2
公开(公告)日：2024-06-25
申请号：US17772086
申请日：2021-07-22
申请人： LG CHEM, LTD.
发明人： Hong Min Lee , Moon Sub Hwang , Min Ho Sun , Jong Hun Song , Kyung Seog Youk , Jeong Seok Lee
CPC分类号： B01J4/004 , B01J19/06 , B01J19/24 , B01J2204/002 , C07C2/08
摘要： Provided are a sparger including: a disc-shaped body; and a first hole and a second hole having different sizes from each other provided in the body, wherein a diameter of the second hole is smaller than a diameter of the first hole, and a reactor comprising the sparger.
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