-
公开(公告)号：US20210238111A1
公开(公告)日：2021-08-05
申请号：US17050031
申请日：2019-07-10
申请人： LG CHEM, LTD.
发明人： Myungji SUH , Jun Han KANG , Kyong Yong CHA , Dong Hyun KO
摘要： An exemplary embodiment of the present application provides a method for preparing butadiene, the method comprising a process of performing an oxidative dehydrogenation reaction by introducing a reactant comprising butene, oxygen, nitrogen, and steam into a reactor which is filled with a catalyst, in which during a first start-up of the oxidative dehydrogenation reaction, the oxygen is introduced into the reactor before the butene, or the oxygen is introduced into the reactor simultaneously with the butene.
-
公开(公告)号：US20210060537A1
公开(公告)日：2021-03-04
申请号：US16963639
申请日：2019-11-19
申请人： LG CHEM, LTD.
发明人： Ye Seul HWANG , Dong Hyun KO , Joohyuck LEE , Myungji SUH
摘要： Provided is a catalyst for an oxidative dehydrogenation reaction that comprises: a porous support; a core portion supported on the porous support and containing a first zinc ferrite-based catalyst; and a shell portion supported on the core portion and containing a second zinc ferrite-based catalyst, in which the first zinc ferrite-based catalyst and the second zinc ferrite-based catalyst are different from each other.
-
公开(公告)号：US20210163378A1
公开(公告)日：2021-06-03
申请号：US16771141
申请日：2019-02-01
申请人： LG CHEM, LTD.
发明人： Hyunseok NAM , Jun Han KANG , Kyong Yong CHA , Jaewon JEONG , Dong Hyun KO , Jun Kyu HAN , Sang Jin HAN , Kyung Moo LEE , Joohyuck LEE , Daeheung CHOI , Myungji SUH , Ye Seul HWANG , Sunhwan HWANG , Seongmin KIM
摘要： The present specification provides a method for preparing 1,3-butadiene, the method comprising: (A) obtaining a first product comprising a light component, 1,3-butadiene, and a heavy component from a reactant comprising butene; (B) separating the heavy component from a second product comprising the 1,3-butadiene and the light component by condensing the heavy component after heat exchanging the first product; and (C) separating concentrated heavy component by reboiling the condensed heavy component.
-
4.发明申请公开(公告)号：US20210039075A1
公开(公告)日：2021-02-11
申请号：US16964571
申请日：2019-02-26
申请人： LG Chem, LTD.
发明人： Joohyuck LEE , Dong Hyun KO , Kyong Yong CHA , Myungji SUH
IPC分类号： B01J23/745 , C07C11/167 , C07C5/48 , B01J37/02
摘要： The method for preparing a ferrite-based coating catalyst including mixing a support, a ferrite-based catalyst, and water in a coating machine which is a rotating body, in which a weight ratio of the water based on a total weight of the support is 0.15 to 0.3.
-
公开(公告)号：US20210362111A1
公开(公告)日：2021-11-25
申请号：US16968014
申请日：2019-01-29
申请人： LG CHEM, LTD.
发明人： Ye Seul HWANG , Daeheung CHOI , Myungji SUH , Sunhwan HWANG , Dong Hyun KO , Kyong Yong CHA , Jun Kyu HAN
摘要： The present specification relates to a method comprising: (A) mixing a ferrite-based catalyst molded article with diluent material particles; and (B) adding the mixture to a catalyst reactor, and a method for preparing butadiene using the same.
-
6.发明申请公开(公告)号：US20210114001A1
公开(公告)日：2021-04-22
申请号：US16963161
申请日：2019-02-26
申请人： LG Chem, LTD.
发明人： Joohyuck LEE , Dong Hyun KO , Kyong Yong CHA , Myungji SUH
摘要： The method for preparing a ferrite-based coating catalyst including mixing a support, a ferrite-based catalyst, a cellulose-based additive, and water, in which a content of the cellulose-based additive is 0.5 wt % or less based on a total weight of the ferrite-based catalyst.
-
公开(公告)号：US20240082829A1
公开(公告)日：2024-03-14
申请号：US18513178
申请日：2023-11-17
申请人： LG CHEM, LTD.
发明人： Myungji SUH , Dong Hyun KO , Minkee CHOI , Kyunglim HYUN
CPC分类号： B01J31/06 , B01J23/44 , C07C5/09 , C08F26/06 , C07C2523/44 , C07C2531/06
摘要： A catalyst for a hydrogenation reaction including a polymer support and a catalytic component supported on the polymer support. The polymer support consists of a repeating unit represented by any one of Formulae 5 and 7 to 13.
-
公开(公告)号：US20220105501A1
公开(公告)日：2022-04-07
申请号：US17428767
申请日：2020-07-13
发明人： Myungji SUH , Dong Hyun KO , Minkee CHOI , Yeonwoo CHOI
摘要： A catalyst for a hydrogenation reaction including: a polymer support; and a catalytic component supported on the polymer support. The polymer support includes a repeating unit represented by Formula 1.
-
公开(公告)号：US20190201876A1
公开(公告)日：2019-07-04
申请号：US16327151
申请日：2018-04-12
申请人： LG CHEM, LTD.
发明人： Myungji SUH , Dong Hyun KO , Jun Han KANG , Hyunseok NAM , Sang Jin HAN , Seongmin KIM
IPC分类号： B01J23/80 , B01J37/03 , B01J37/00 , B01J37/02 , B01J37/08 , B01J21/04 , B01J35/02 , B01J35/08 , B01J35/10 , B01J35/00 , B01J8/02 , C07C5/48 , C07C11/167
CPC分类号： B01J23/80 , B01J8/02 , B01J21/04 , B01J23/70 , B01J23/78 , B01J35/0026 , B01J35/02 , B01J35/023 , B01J35/026 , B01J35/08 , B01J35/1076 , B01J37/0036 , B01J37/02 , B01J37/0225 , B01J37/0236 , B01J37/038 , B01J37/08 , C07C5/48 , C07C11/167 , C07C2521/04 , C07C2523/745 , C07C2523/80
摘要： Provided is a catalyst system for oxidative dehydrogenation, a reactor for oxidative dehydrogenation including the catalyst system, and a method of performing oxidative dehydrogenation using the reactor. In the catalyst system, a fixed-bed reactor is filled with a catalyst for oxidative dehydrogenation in an n-stage structure (n being an integer of 2 or more), wherein each stage of the n-stage structure satisfies Equations 1 and 2 as claimed so that the concentration of an active ingredient included in the catalyst gradually increases in the direction in which reactants are fed into the reactor. Heat generated inside the reactor may be effectively controlled during oxidative dehydrogenation, thereby improving conversion rate, selectivity, and yield. In addition, catalyst deterioration may be reduced, thereby improving long-term stability of the catalyst.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.013 秒)
