公开(公告)号：US20250051491A1

公开(公告)日：2025-02-13

申请号：US18710904

申请日：2023-03-27

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Dong Won HWANG ,  Changho YOO ,  Seung Hyeok CHA ,  Gwang Nam YUN

IPC: C08F4/78 ,  C08F110/02

Abstract: The present invention pertains to: an ethylene oligomerization catalyst containing a ligand compound; a catalyst composition employing same; and a method for producing an ethylene oligomer by using same. The catalyst exhibits excellent selectivity to oligomers and selectivity to 1-hexane, thus making it possible to mass-produce 1-hexane, which is an industrially useful chemical raw material, with high purity.

公开(公告)号：US20230076397A1

公开(公告)日：2023-03-09

申请号：US17885006

申请日：2022-08-10

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Young Kyu HWANG ,  Changho YOO ,  Dong Won HWANG ,  Kyung-Ryul OH ,  Do Young HONG ,  Maeum LEE

IPC: C07C51/41

Abstract: Proposed is a high-yield simultaneous conversion method for a hydrogen source and a carbon dioxide source. The method significantly increases a yield of a formate through conversion of carbon dioxide. To this end, a carbon dioxide source and a hydrocarbon containing one or more hydroxy groups undergo a simultaneous conversion reaction in the presence of a solvent containing one or more alcohols and having a pH of 10 to 14.

公开(公告)号：US20230026024A1

公开(公告)日：2023-01-26

申请号：US17858528

申请日：2022-07-06

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Young Kyu HWANG ,  Changho YOO ,  Dong Won HWANG ,  Do-Young HONG ,  Jaedeuk PARK ,  In Hyoup SONG ,  Maeum LEE ,  Kyung-Ryul OH ,  Anil Haribhau VALEKAR

IPC: C07C51/41 ,  C07C51/44 ,  C07C51/15

Abstract: Proposed is a two-pot-two-step simultaneous conversion system for carbon dioxide and a hydrocarbon containing at least one hydroxy group and a method thereof. The system integrates a process of producing a metal salt that is a dehydrogenated form of the hydrocarbon, hydrogen, and water by reacting a hydrocarbon containing at least one hydroxy group in the presence of water and a metal oxalate, and a process of converting carbon dioxide or carbon dioxide-derived carbonate into formate by hydrogenation, thereby increasing energy efficiency while maintaining a higher hydrocarbon conversion rate and a higher carbon dioxide conversion rate than the one-pot conversion system for hydrocarbon and carbon dioxide.