公开(公告)号：US10569259B2

公开(公告)日：2020-02-25

申请号：US15749472

申请日：2016-12-15

申请人： LG CHEM, LTD.

发明人： Jun Seon Choi ,  Ji Yeon Kim ,  Joo Young Cheon ,  Wang Rae Joe ,  Hye Jeong Ok ,  Kyung Soo Kim

IPC分类号： C07C45/52 ,  B01J27/00 ,  B01J23/00 ,  B01J21/00 ,  B01J27/18 ,  B01J37/08 ,  B01J37/06 ,  B01J27/185 ,  B01J27/188 ,  B01J37/03 ,  B01J27/195 ,  B01J35/10 ,  C07C47/22

摘要： The present disclosure relates to a catalyst for dehydration of glycerin, a preparation method thereof, and a production method of acrolein using the catalyst.Particularly, the catalyst according to an embodiment of the present disclosure is used in a dehydration reaction of glycerin to exhibit high catalytic activity, a high yield, and high selectivity to acrolein and acrylic acid, and has a longer lifetime compared to the conventional catalysts due to a characteristic that coke carbon cannot be easily deposited on the surface of the catalyst.

公开(公告)号：US09321040B2

公开(公告)日：2016-04-26

申请号：US14442992

申请日：2014-06-20

申请人： LG CHEM, LTD.

发明人： Wang Rae Joe ,  Jun Seon Choi ,  Ji Yeon Kim ,  Joo Young Cheon

IPC分类号： C07C45/29 ,  C07C45/52 ,  B01J37/00 ,  B01J27/00 ,  B01J27/188 ,  B01J37/08

CPC分类号： B01J27/188 ,  B01J23/888 ,  B01J27/199 ,  B01J37/08 ,  B01J2523/00 ,  C07C45/52 ,  C07C47/22 ,  B01J2523/17 ,  B01J2523/51 ,  B01J2523/69 ,  B01J2523/41

摘要： The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein, and more particularly, to a catalyst for glycerin dehydration which minimizes by-product formation to improve acrolein selectivity and maintains high catalytic activity during reaction.

摘要翻译： 本发明涉及一种用于甘油脱水的催化剂及其制备方法和丙烯醛的制备方法，更具体地说，涉及用于甘油脱水的催化剂，其使副产物形成最小化以改善丙烯醛选择性并在反应期间维持高的催化活性 。

公开(公告)号：US11801488B2

公开(公告)日：2023-10-31

申请号：US17425670

申请日：2020-11-17

申请人： LG CHEM, LTD.

发明人： Young Sub Keum ,  Dae Heung Choi ,  Joo Young Cheon ,  Hyeon Bin Kim

IPC分类号： B01J20/08 ,  C07C1/24 ,  B01J37/10 ,  C01F7/021

CPC分类号： B01J20/08 ,  B01J37/10 ,  C01F7/021 ,  C07C1/24 ,  C07C2521/04

摘要： A method of preparing an alumina catalyst including: performing primary calcination of an alumina precursor at a primary calcination temperature to form a mixed-phase alumina including 1% to 15% by weight of alpha-alumina, 60% to 95% by weight of theta-alumina, and 4% to 25% by weight of delta-alumina; steam-treating the mixed-phase alumina with water vapor at a steam-treating temperature lower than the primary calcination temperature to form activated mixed-phase alumina; and performing secondary calcination of the activated mixed-phase alumina at a secondary calcination temperature higher than the steam treatment temperature and lower than the primary calcination temperature after step S2. An alumina catalyst prepared using the method, and a method of preparing propylene using the alumina catalyst.

公开(公告)号：US20220314197A1

公开(公告)日：2022-10-06

申请号：US17425670

申请日：2020-11-17

申请人： LG CHEM, LTD.

发明人： Young Sub Keum ,  Dae Heung Choi ,  Joo Young Cheon ,  Hyeon Bin Kim

IPC分类号： B01J20/08 ,  C01F7/021 ,  B01J37/10 ,  C07C1/24

摘要： A method of preparing an alumina catalyst including: performing primary calcination of an alumina precursor at a primary calcination temperature to form a mixed-phase alumina including 1% to 15% by weight of alpha-alumina, 60% to 95% by weight of theta-alumina, and 4% to 25% by weight of delta-alumina; steam-treating the mixed-phase alumina with water vapor at a steam-treating temperature lower than the primary calcination temperature to form activated mixed-phase alumina; and performing secondary calcination of the activated mixed-phase alumina at a secondary calcination temperature higher than the steam treatment temperature and lower than the primary calcination temperature after step S2. An alumina catalyst prepared using the method, and a method of preparing propylene using the alumina catalyst.

公开(公告)号：US11446622B2

公开(公告)日：2022-09-20

申请号：US17274737

申请日：2020-08-12

申请人： LG CHEM, LTD.

发明人： Joo Young Cheon ,  Dong Hyun Ko ,  Jun Han Kang ,  Sang Jin Han ,  Hyun Jin Cho ,  Jae Kwon Jeoung

IPC分类号： B01J8/06

摘要： A socket-type fluid distributor for distributing and supplying a gas and/or liquid reactant into a reactor body. The socket-type fluid distributor includes: a distributor body, a bottom portion of which is inserted into the reactor body; a mixing flow path formed in a central portion of the distributor body such that the mixing flow path penetrates through the distributor body into the reactor body; a gas reactant input portion disposed above the distributor body and having a gas flow path; a liquid reactant input portion disposed between the distributor body and the gas reactant input portion and having a liquid flow path; and a flow control portion formed in the mixing flow path.

公开(公告)号：US09259718B1

公开(公告)日：2016-02-16

申请号：US14432005

申请日：2014-06-20

申请人： LG CHEM, LTD.

发明人： Wang Rae Joe ,  Jun Seon Choi ,  Ji Yeon Kim ,  Joo Young Cheon

IPC分类号： C07C45/00 ,  B01J27/00 ,  B01J37/00 ,  C01B25/00 ,  B01J27/182 ,  C01B25/37 ,  B01J37/28 ,  B01J37/08 ,  C07C45/51

CPC分类号： B01J27/182 ,  B01J23/10 ,  B01J37/036 ,  B01J37/08 ,  B01J37/28 ,  C01B25/37 ,  C07C45/512 ,  C07C45/52 ,  C07C47/22

摘要： The present invention relates to a method for preparing a catalyst for glycerin dehydration, a catalyst for glycerin dehydration prepared thereby, and a method for preparing acrolein. More particularly, the catalyst for glycerin dehydration prepared by the preparation method is able to minimize by-product formation to improve acrolein selectivity and to maintain high catalytic activity during the reaction.

摘要翻译： 本发明涉及一种甘油脱水催化剂的制备方法，由此制备的甘油脱水催化剂及其制备方法。 更具体地，通过制备方法制备的用于甘油脱水的催化剂能够使副产物形成最小化，以提高丙烯醛选择性并在反应期间保持高的催化活性。