公开(公告)号：US20170327437A1

公开(公告)日：2017-11-16

申请号：US15594115

申请日：2017-05-12

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Dong Won HWANG ,  Ho Jeong CHAE ,  MaEum LEE ,  Ji Sun YOON

IPC: C07C2/12 ,  C07C2/28

CPC classification number: C07C2/12 ,  C07C2/28 ,  C07C2523/755 ,  C07C2529/40 ,  C07C2529/46 ,  C07C2529/70 ,  C07C2529/76 ,  C07C2531/10 ,  Y02P20/52 ,  C07C11/02 ,  C07C11/107 ,  C07C11/08

Abstract: The present invention relates to a method for the oligomerization of ethylene, and more specifically, to a method for the preparation of mainly ethylene oligomers of C10 or higher, which comprises obtaining mainly ethylene oligomers of C4 or higher by performing a first oligomerization of an ethylene gas using a Ni-containing mesoporous catalyst, followed by a second oligomerization using an ion exchange resin, etc. The method for the preparation of ethylene oligomers according to the present invention can produce C8-16 ethylene oligomers in high yield without inducing inactivation of a catalyst, compared to the conventional technology of ethylene oligomerization by a one-step process.

公开(公告)号：US20240375947A1

公开(公告)日：2024-11-14

申请号：US18688233

申请日：2022-08-30

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Ho Jeong CHAE ,  Youngmin KIM ,  Jeong-Rang KIM ,  Do Quoc CUONG ,  Geo Jong KIM ,  Tae Wan KIM

IPC: C01B3/04 ,  B01J21/04 ,  B01J23/755 ,  B01J23/889 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/16

Abstract: The present invention pertains to: a method for preparing a catalyst for ammonia decomposition using cation-anion double hydrolysis; the catalyst; and a method for producing hydrogen through ammonia decomposition using the catalyst, wherein a catalyst for ammonia decomposition for hydrogen production, in which nickel (Ni) is supported on an aluminum oxide support or an aluminum composite oxide support doped with a promoter metal (M), is prepared using a ONE POT cation-anion double hydrolysis (CADH) method.

公开(公告)号：US20210069689A1

公开(公告)日：2021-03-11

申请号：US16643410

申请日：2018-08-30

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Ho Jeong CHAE ,  Young Min KIM ,  Jip KIM ,  Hyung Ju KIM

IPC: B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  B01J6/00 ,  C07C17/06 ,  C07C19/03 ,  B01J21/06

Abstract: The present invention relates to a method for preparing a sulfated metal oxide catalyst for chlorination, and a method for producing a reaction product containing methyl chloride (CH3Cl) by using the sulfated metal oxide catalyst. A sulfated zirconia catalyst and a sulfated tin oxide catalyst are disclosed as the sulfated metal oxide catalyst for chlorination.