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公开(公告)号：US20230041232A1
公开(公告)日：2023-02-09
申请号：US17775860
申请日：2021-08-12
Applicant: LG CHEM, LTD.
Inventor： Moon Sub HWANG , Jeong Seok LEE , Hong Min LEE , Jong Hun SONG , Kyung Seog YOUK , Min Ho SUN , Hyun Seok KIM
Abstract: The present disclosure relates to an apparatus for preparing an oligomer, including: a reactor receiving a monomer stream and performing an oligomerization reaction to prepare a reaction product; a product discharge line for transferring a reaction product stream discharged from the reactor; and a bubble catcher provided in any area of the product discharge line to remove bubbles contained in the reaction product stream.
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公开(公告)号：US20220340500A1
公开(公告)日：2022-10-27
申请号：US17633874
申请日：2021-07-01
Applicant: LG CHEM, LTD.
Inventor： Jong Hun SONG , Jeong Seok LEE , Hong Min LEE , Moon Sub HWANG , Min Ho SUN , Kyung Seog YOUK
IPC: C07C2/04
Abstract: An apparatus for preparing an oligomer including: a reactor supplied with a monomer stream and a solvent stream to perform an oligomerization reaction; a product discharge line provided on a lower portion of a side surface of the reactor; a washing liquid supply line connected to a first point of the product discharge line; and a washing liquid discharge line extending from a second point of the product discharge line, wherein the product discharge line includes a branch point at which the product discharge line is branched into two or more lines and a junction point at which the respective branched lines are joined, and the product discharge line includes pressure control devices provided in each of the two or more branched lines.
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公开(公告)号：US20220379277A1
公开(公告)日：2022-12-01
申请号：US17772086
申请日：2021-07-22
Applicant: LG CHEM, LTD.
Inventor： Hong Min LEE , Moon Sub HWANG , Min Ho SUN , Jong Hun SONG , Kyung Seog YOUK , Jeong Seok LEE
Abstract: 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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公开(公告)号：US20220055081A1
公开(公告)日：2022-02-24
申请号：US17296906
申请日：2020-08-07
Applicant: LG CHEM, LTD.
Inventor： Moon Sub HWANG , Jeong Seok LEE , Jong Hun SONG , You Na KIM , Hong Min LEE
Abstract: The present disclosure provides a reactor cleaning apparatus including: a fixing part having a partial region inserted into a hole formed in an upper portion of a reactor to be coupled to the reactor and fixing a pipe; the pipe inserted into a hole formed in the fixing part, protruding downward from the fixing part, and having a length adjustable in a vertical direction; a spray nozzle provided at a lower end of the pipe; and a screener provided on a lower side surface of the pipe, and a reactor cleaning method using the same.
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Patent Agency Ranking
公开(公告)号：US20230183148A1
公开(公告)日：2023-06-15
申请号：US17777962
申请日：2021-09-06
Applicant: LG CHEM, LTD.
Inventor： Kyung Seog YOUK , Min Ho SUN , Jong Hun SONG , Hong Min LEE , Moon Sub HWANG , Jeong Seok LEE
CPC classification number: C07C2/06 , C07C7/005 , C07C7/14883 , C07C7/08
Abstract: Provided is a method of producing an oligomer, the method including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to produce a reaction product; supplying a discharge stream of the reactor to a separation device, and supplying an upper discharge stream of the separation device including an unreacted monomer to the reactor and supplying a lower discharge stream of the separation device to a settling tank; settling a polymer in the settling tank and removing the polymer, and supplying the lower discharge stream of the separation device from which the polymer is removed to a high-boiling point separation column; removing a high-boiling point material from a lower discharge stream of the high-boiling point separation column and supplying an upper discharge stream of the high-boiling point separation column including an oligomer to a solvent separation column; and separating a solvent and the oligomer in the solvent separation column.
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公开(公告)号：US20220347648A1
公开(公告)日：2022-11-03
申请号：US17629359
申请日：2021-07-09
Applicant: LG CHEM, LTD.
Inventor： Moon Sub HWANG , Min Ho SUN , Jong Hun SONG , Kyung Seog YOUK , Jeong Seok LEE , Hong Min LEE
Abstract: The present disclosure relates to an apparatus for preparing an oligomer, and more particularly, to an apparatus for preparing an oligomer including: a reactor including a gaseous area having a first gaseous reactant inlet provided at a lower portion thereof, and a reaction area in which a reaction medium reacts with the gaseous reactant above the gaseous area; a second gaseous reactant inlet provided on an inner wall of the reactor in the gaseous area and a third gaseous reactant inlet provided on an inner wall of the reactor facing the second gaseous reactant inlet; and a first injection nozzle connected to the second gaseous reactant inlet and a second injection nozzle connected to the third gaseous reactant inlet.
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公开(公告)号：US20220143568A1
公开(公告)日：2022-05-12
申请号：US17432083
申请日：2020-11-13
Applicant: LG CHEM, LTD.
Inventor： Hong Min LEE , Jeong Seok LEE , Jong Hun SONG , Kyung Seog YOUK , Dong Kwon LEE , Moon Sub HWANG
Abstract: 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：US20220055010A1
公开(公告)日：2022-02-24
申请号：US17297291
申请日：2020-08-07
Applicant: LG CHEM, LTD.
Inventor： Moon Sub HWANG , Jeong Seok LEE , Jong Hun SONG , You Na KIM , Hong Min LEE
Abstract: The present disclosure provides an apparatus for preparing oligomer including: a reactor; a gas-liquid separator; a solvent transfer line; a second transfer line; a first spray nozzle unit; and a second spray nozzle unit. The apparatus is capable of improving stability of the entire process by including a first spray nozzle unit and a second spray nozzle unit in a reactor and thus preventing by-products containing polymer substances such as C20+ from being entrained with a desired product during a reaction.
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公开(公告)号：US20210362118A1
公开(公告)日：2021-11-25
申请号：US17267407
申请日：2020-05-20
Applicant: LG CHEM, LTD.
Inventor： Jong Hun SONG , Jeong Seok LEE , You Na KIM , Hong Min LEE , Moon Sub HWANG
Abstract: 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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