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    MULTI-COMPONENT MIXTURE SEPARATION SYSTEM
    1.
    发明公开
    MULTI-COMPONENT MIXTURE SEPARATION SYSTEM 审中-公开

    公开(公告)号：US20240299859A1

    公开(公告)日：2024-09-12

    申请号：US18020873

    申请日：2022-06-16

    Applicant: LG CHEM, LTD.

    Inventor： Sung Kyun KIM ,  Sung Kyu LEE ,  Tae Woo KIM

    IPC: B01D3/14 ,  B01D3/00 ,  B01D3/32 ,  B01D5/00 ,  B01D17/02

    CPC classification number: B01D3/141 ,  B01D3/008 ,  B01D3/143 ,  B01D3/32 ,  B01D5/0063 ,  B01D17/0214

    Abstract: The present disclosure provides a multi-component mixture separation system including a distillation column including a first section and a second section separated by a partition wall, and a phase separator receiving a lower discharge stream of the second section and separating the stream into an aqueous phase and an oil phase, and refluxing a portion of the separated aqueous phase or oil phase to the first section, in which the first section includes a chimney tray provided on an upper portion, and the first section is fed with a feed stream containing three or more components to separate high-boiling point component to a lower portion, and a gaseous component moves to the second section.

    METHOD OF PREPARING DIESTER-BASED MATERIAL
    3.
    发明申请
    METHOD OF PREPARING DIESTER-BASED MATERIAL 有权

    公开(公告)号：US20220371984A1

    公开(公告)日：2022-11-24

    申请号：US17635925

    申请日：2021-08-20

    Applicant: LG CHEM, LTD.

    Inventor： Jae Hun JEONG ,  Sung Kyu LEE ,  Yeon Uk CHOO ,  Song Hoon LEE ,  Hyoung JUN ,  Yun Gon HEO

    IPC: C07C67/08 ,  C07C69/82 ,  C07C67/58

    Abstract: A diester-based material can be prepared continuously including a reaction part in which a total of n reaction units from a first reaction unit to an nth reaction unit are connected in series, the reaction unit including a reactor which esterifies dicarboxylic acid and alcohol, includes: esterifying dicarboxylic acid and alcohol in a reactor of the first reaction unit to produce a reaction product, and supplying a lower discharge stream including the reaction product to a reaction unit at a rear end, wherein an operating pressure of the reactor of the first reaction unit is 0.4 kg/cm2G to 5.5 kg/cm2G, an operating pressure is reduced from a reactor of any one reaction unit of reaction units from a second reaction unit to the nth reaction unit, and an operating temperature is increased from the reactor of the first reaction unit to the reactor of the nth reaction unit.

    NEUTRALIZATION/WATER SEPARATION TANK FOR ESTERIFIED PRODUCT AND NEUTRALIZATION/WATER SEPARATION METHOD FOR ESTERIFIED PRODUCT
    5.
    发明申请
    NEUTRALIZATION/WATER SEPARATION TANK FOR ESTERIFIED PRODUCT AND NEUTRALIZATION/WATER SEPARATION METHOD FOR ESTERIFIED PRODUCT 有权

    公开(公告)号：US20220193574A1

    公开(公告)日：2022-06-23

    申请号：US17605184

    申请日：2020-07-01

    Applicant: LG CHEM, LTD.

    Inventor： Yeon Uk CHOO ,  Sung Kyu LEE ,  Hyun Kyu KIM ,  Chan Hyu JIN ,  Hyoung JUN ,  Jin Sung PARK

    IPC: B01D17/02 ,  B01D21/00 ,  B01D21/24 ,  C02F1/40 ,  C07B63/00

    Abstract: A neutralization/water separation tank for an esterified product including: a neutralization part in which a crude product mixture containing alcohol and an ester compound, a neutralizing agent, and water are put to produce a neutralized mixture; a water separation part which divides the neutralized mixture into a floating layer and an aqueous layer; a first partition wall which extends upward from a bottom surface to provide an upper passage and by which the neutralization part and the water separation part are partitioned; and a second partition wall which extends downward from a ceiling to provide a lower passage, wherein the water separation part includes: a first water separation part into which the neutralized mixture is introduced from the neutralization part through the upper passage; and a second water separation part into which the neutralized mixture is introduced from the first water separation part through the lower passage, wherein the first water separation part and the second water separation part are partitioned by the second partition wall.

    CONTINUOUS PRODUCTION METHOD OF DIESTER-BASED MATERIAL
    6.
    发明申请
    CONTINUOUS PRODUCTION METHOD OF DIESTER-BASED MATERIAL 有权

    公开(公告)号：US20220185761A1

    公开(公告)日：2022-06-16

    申请号：US17603208

    申请日：2020-07-02

    Applicant: LG CHEM, LTD.

    Inventor： Jae Hun JEONG ,  Sung Kyu LEE ,  Yeon Uk CHOO ,  Hyun Kyu KIM ,  Seok Goo LEE

    IPC: C07C67/08 ,  C07C67/52 ,  B01J19/00

    Abstract: The present disclosure relates to a continuous production method of a diester-based material in a continuous production process comprising a reaction part in which a total of N reaction units from a first reaction unit to an N-th reaction unit are connected in series. The method comprising the step of feeding dicarboxylic acid and a primary alcohol, wherein the feed of the primary alcohol is divided into front-end feed of being fed into a first reaction unit and rear-end feed of being fed into one or more reaction units selected among from a second reaction unit to an N-th reaction unit, wherein the amount of the rear-end feed is 5 to 80 wt % based on the total feed amount of the primary alcohol into a reaction part, and the N is an integer of 3 to 6. According to the present invention, it is possible to ensure the ease of process operation through reducing the amount of reflux compared to a typical batch process and reducing the volume of steam for heating a reactor, and to ensure the economic feasibility of a product through saving energy.

    PROCESS AND APPARATUS FOR SEPARATING ETHYLENE
    7.
    发明申请
    PROCESS AND APPARATUS FOR SEPARATING ETHYLENE 审中-公开

    公开(公告)号：US20200071244A1

    公开(公告)日：2020-03-05

    申请号：US16613752

    申请日：2017-11-21

    Applicant: LG CHEM, LTD.

    Inventor： Tae Woo KIM ,  Sung Kyu LEE ,  Joon Ho SHIN ,  Yeonuk CHOO

    IPC: C07C5/08 ,  C07C7/04

    Abstract: The present invention provides an ethylene separation process comprising an first and second deethanizer columns and an acetylene converter, thereby providing an ethylene stream having a purity of 99 wt % or more to the middle of an ethylene separation column. The present invention increases the production amount of ethylene and also reduces energy consumption by passing the feed through a preliminary ethylene separation process, without having to change existing facilities in which an acetylene converter is provided downstream of the deethanizer column.

    METHOD FOR PURIFYING PHENOL
    8.
    发明申请
    METHOD FOR PURIFYING PHENOL 审中-公开

    公开(公告)号：US20190023634A1

    公开(公告)日：2019-01-24

    申请号：US16071553

    申请日：2017-11-10

    Applicant: LG CHEM, LTD.

    Inventor： Si Nae LEE ,  Sung Kyu LEE ,  Joon Ho SHIN

    IPC: C07C37/78 ,  C07C39/04 ,  B01D3/36

    Abstract: The present invention relates to a method for purifying phenol, which comprises: supplying a feed comprising phenol, acetone, hydroxyacetone and water to a distillation column at 60° C. to 95° C.; separating the feed into a first fraction, which comprises the acetone, and separates to the upper part of the distillation column and a second fraction, which comprises the phenol, and separates to the lower part of the distillation column; and recovering the first fraction and the second fraction, respectively.

    HEAT RECOVERY DEVICE
    9.
    发明申请
    HEAT RECOVERY DEVICE 审中-公开
    热回收装置

    公开(公告)号：US20160231062A1

    公开(公告)日：2016-08-11

    申请号：US15022191

    申请日：2014-09-17

    Applicant: LG CHEM, LTD.

    Inventor： Tae Woo KIM ,  Sung Kyu LEE ,  Joon Ho SHIN

    IPC: F28D15/00 ,  B01J19/00

    CPC classification number: B01J19/0053 ,  B01J10/00 ,  B01J19/0013 ,  B01J19/24 ,  B01J2219/00029 ,  B01J2219/00103 ,  B01J2219/00108

    Abstract: Disclosed are a heat recovery device and a heat recovery method. According to the heat recovery device, it is possible to recovery heat which is discontinuously generated in a batch reactor. In addition, a heat-exchanged heat exchange medium is supplied to a heat storage facility so that various kinds and a great quantity of steams can be produced, if necessary, thereby utilizing these produced steams in various industrial fields.

    Abstract translation: 公开了一种热回收装置和热回收方法。 根据热回收装置，可以回收在间歇式反应器中不连续产生的热量。 此外，热交换介质被供给到蓄热设备，如果需要，可以生产各种和大量的蒸汽，从而在各种工业领域中利用这些生产的蒸汽。

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