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    DEVICE FOR PREPARING ALKANOL
    42.
    发明申请
    DEVICE FOR PREPARING ALKANOL 审中-公开
    制备阿尔卡诺的装置

    公开(公告)号：US20150299075A1

    公开(公告)日：2015-10-22

    申请号：US14646325

    申请日：2014-01-16

    Applicant: LG Chem, Ltd.

    Inventor： Sung Kyu LEE ,  Joon Ho SHIN ,  Jong Ku LEE

    IPC: C07C29/80 ,  B01D3/14

    CPC classification number: C07C29/80 ,  B01D3/141 ,  C07C31/12

    Abstract: The present application relates to a device and a method for preparing alkanol. According to the present application, energy can be reduced when preparing alkanol by reducing the amount of steam used in a reboiler or cooling water used in a condenser, and steam generated from a heat exchanger for overhead stream can be utilized in a variety of fields. Also, highly pure alkanol can be prepared according to the present application.

    Abstract translation: 本申请涉及一种制备链烷醇的装置和方法。 根据本申请，通过减少在冷凝器中使用的再沸器或冷却水中使用的蒸汽量来制备链烷醇时能够减少能量，并且可以在各种领域中使用从塔顶流的热交换器产生的蒸汽。 此外，根据本申请可以制备高纯度的链烷醇。

    TRIHALOSILANE REFINING DEVICE
    43.
    发明申请
    TRIHALOSILANE REFINING DEVICE 有权
    三氧化硅精制装置

    公开(公告)号：US20150174506A1

    公开(公告)日：2015-06-25

    申请号：US14628968

    申请日：2015-02-23

    Applicant: LG CHEM, LTD.

    Inventor： Sung Kyu LEE ,  Joon Ho SHIN ,  Jong Ku LEE ,  Sung Kyun KIM

    IPC: B01D3/14 ,  B01D3/32

    CPC classification number: B01D3/141 ,  B01D3/143 ,  B01D3/324 ,  C01B33/10778 ,  Y10S203/20

    Abstract: A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy.

    Abstract translation: 提供三卤硅烷精制装置和三卤硅烷精制方法。 三卤硅烷精制装置可用于从含有三卤代硅烷的原料中获得高纯度三卤代硅烷，同时消耗少量的能量。

    DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY ACRYLIC ACID AND FRACTIONAL DISTILLATION METHOD USING THE SAME
    44.
    发明申请
    DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY ACRYLIC ACID AND FRACTIONAL DISTILLATION METHOD USING THE SAME 有权
    用于生产高纯度丙烯酸和分级蒸馏方法的分离壁分离塔

    公开(公告)号：US20140371488A1

    公开(公告)日：2014-12-18

    申请号：US14472212

    申请日：2014-08-28

    Applicant: LG CHEM, LTD.

    Inventor： Sung Kyu LEE ,  Jong Ku LEE ,  Joon Ho SHIN

    IPC: B01D3/14 ,  C07C51/44

    CPC classification number: B01D3/14 ,  B01D3/141 ,  C07C51/44 ,  C07C51/445 ,  C07C57/04

    Abstract: There are provided a dividing wall distillation column for producing high-purity acrylic acid, and a fractional distillation method using the same. The dividing wall distillation column includes a condenser, a reboiler and a main column having a dividing wall. Here, the main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. Also, a crude acrylic acid raw material (F) flows in a middle inflow plate NR1 in which the upper feed zone and the lower teed zone come in contact with each other, a low boiling point component (I)) flows out from the column-top zone, a high boiling point component (B) flows out from the column-bottom zone, and a middle boiling point component (S) flows out through a middle outflow plate NR2 in which the upper outflow zone and the lower outflow zone come in contact with each other. In this case, the middle boiling point component is acrylic acid. Accordingly. since one distillation column can be used to realize the same effect as that obtained from the use of two distillation columns, the dividing wall distillation column can have an effect of reducing the costs of equipment to produce high-purity acrylic acid, as well as an energy-reducing effect, compared to a conventional process system.

    Abstract translation: 提供了用于生产高纯度丙烯酸的分隔壁蒸馏塔和使用其的分馏方法。 分隔壁蒸馏塔包括冷凝器，再沸器和具有分隔壁的主塔。 这里，主塔分为塔顶区，上进料区，上流出区，下进料区，下流出区和塔底区。 此外，粗丙烯酸原料（F）在上进料区和下进料区彼此接触的中流入板NR1中流动，低沸点组分（I））从塔流出 - 顶部区域，高沸点成分（B）从塔底区域流出，中间沸点成分（S）通过中流出板NR2流出，其中上流出区域和下流出区域出现 彼此接触。 在这种情况下，中间沸点成分是丙烯酸。 因此。 由于可以使用一个蒸馏塔来实现与使用两个蒸馏塔相同的效果，所以分隔壁蒸馏塔可以具有降低设备生产高纯度丙烯酸的成本的效果，以及 与常规工艺系统相比，减少能量效应。

    METHOD FOR PREPARING NEOPENTYL GLYCOL
    47.
    发明申请
    METHOD FOR PREPARING NEOPENTYL GLYCOL 有权

    公开(公告)号：US20240417351A1

    公开(公告)日：2024-12-19

    申请号：US18701553

    申请日：2023-09-01

    Applicant: LG CHEM, LTD.

    Inventor： Sung Kyun KIM ,  Sung Kyu LEE ,  Na Ro HA ,  Seung Sik CHO

    IPC: C07C29/09 ,  C07C29/80

    Abstract: A method for preparing neopentyl glycol, including: performing an aldol condensation reaction to obtain a first reaction product including hydroxypivaldehyde; bringing the first reaction product into contact with an extracting agent and distilling it to obtain an extract and a raffinate; supplying the raffinate to a saponification reactor to be reduced with a catalyst, and supplying the catalyst to an integrated recovery column; supplying the extract solution to an aldol purification column and distilling it to obtain an upper discharge stream and a lower discharge stream; supplying the upper discharge stream from the aldol purification column to the integrated recovery column and supplying the lower discharge stream from the aldol purification column to a hydrogenation reactor to obtain a second reaction product including neopentyl glycol; and obtaining the neopentyl glycol from the second reaction product.

    HEAT INTEGRATION SEPARATION SYSTEM
    48.
    发明公开
    HEAT INTEGRATION SEPARATION SYSTEM 审中-公开

    公开(公告)号：US20240058722A1

    公开(公告)日：2024-02-22

    申请号：US18271433

    申请日：2022-06-16

    Applicant: LG CHEM, LTD.

    Inventor： Yong Suk CHOI ,  Sung Kyu LEE ,  Yeon Uk CHOO

    IPC: B01D3/00 ,  B01D3/14

    CPC classification number: B01D3/007 ,  B01D3/143

    Abstract: Provided is a heat integration separation system including a first column, a second column, a compressor, a first heat exchanger and a second heat exchanger, wherein an upper discharge stream of the first column passes through the compressor to be compressed and then heat-exchanged with a lower discharge stream of the second column in the second heat exchanger, wherein an upper discharge stream of the second column is heat-exchanged with a lower discharge stream of the first column in the first heat exchanger, and wherein the heat integration separation system satisfies Equation 1 (refer to the specification).

    METHOD FOR PREPARING SYNTHESIS GAS AND AROMATIC HYDROCARBON
    49.
    发明公开
    METHOD FOR PREPARING SYNTHESIS GAS AND AROMATIC HYDROCARBON 审中-公开

    公开(公告)号：US20230340345A1

    公开(公告)日：2023-10-26

    申请号：US17796837

    申请日：2021-12-11

    Applicant: LG CHEM, LTD.

    Inventor： Sung June HWANG ,  Tae Woo KIM ,  Sik KI ,  Sung Kyu LEE

    IPC: C10J3/62 ,  C07C4/02

    CPC classification number: C10J3/62 ,  C07C4/025 ,  C10J2300/1659 ,  C10J2300/1606

    Abstract: Provided is a method for preparing synthesis gas and aromatic hydrocarbons, and more particularly, a method for preparing synthesis gas and aromatic hydrocarbons including: supplying a pyrolysis fuel oil (PFO) stream containing PFO and a pyrolysis gas oil (PGO) stream containing PGO to a distillation tower as a feed stream (S10), the PFO stream and the PGO stream being discharged from a naphtha cracking center (NCC) process; and supplying a lower discharge stream from the distillation tower to a combustion chamber for a gasification process and supplying an upper discharge stream from the distillation tower to an SM/BTX preparation process (S20).

    WASTE WATER INCINERATING METHOD AND APPARATUS THEREFOR
    50.
    发明公开
    WASTE WATER INCINERATING METHOD AND APPARATUS THEREFOR 审中-公开

    公开(公告)号：US20230159351A1

    公开(公告)日：2023-05-25

    申请号：US17054736

    申请日：2020-01-20

    Applicant: LG CHEM, LTD.

    Inventor： Tae Woo KIM ,  Sung Kyu LEE

    IPC: C02F1/04 ,  C02F1/74

    CPC classification number: C02F1/048 ,  C02F1/043 ,  C02F1/74 ,  C02F2201/002

    Abstract: A waste water incinerating method comprising supplying waste water to an evaporator to evaporate the waste water, supplying an evaporator top discharge stream discharged from the evaporator to an incinerator to incinerate the discharge stream, mixing two or more incinerator discharge streams including a first incinerator discharge stream and a second incinerator discharge stream discharged from the incinerator to form a mixed discharge stream, and heat-exchanging the mixed discharge stream and a fresh air stream in a first heat exchanger, wherein the first incinerator discharge stream is passed through a second heat exchanger, then mixed with the second incinerator discharge stream to form the mixed discharge stream.

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