公开(公告)号：US20220339605A1

公开(公告)日：2022-10-27

申请号：US17763555

申请日：2020-09-03

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Yong Tae KIM ,  Sung Woo LEE ,  Seung Ju HAN ,  Seok Ki KIM ,  Hyun Woo KIM ,  Jungho SHIN

IPC: B01J23/44 ,  C07C5/09 ,  B01J21/08 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08

Abstract: The present invention relates to a catalyst for selective hydrogenation of acetylene and a preparation method thereof. More specifically, the catalyst and preparation method maximize the catalytic reaction rate at various reaction temperatures and suppress side reactions to minimize the generation of green oil and cokes and to improve the deactivation rate of a catalyst when preparing ethylene from acetylene. Thus, the catalyst and the preparation method provide a high conversion rate of acetylene and a high ethylene production yield.

公开(公告)号：US20230331644A1

公开(公告)日：2023-10-19

申请号：US18025372

申请日：2021-08-10

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Yong Tae KIM ,  Sung Woo LEE ,  Seok Ki KIM ,  Jungho SHIN ,  Seung Ju HAN ,  Hyun Woo KIM ,  Eun Hae SIM

IPC: C07C2/76

CPC classification number: C07C2/76 ,  C07C2523/755 ,  C07C2523/26 ,  C07C2521/18

Abstract: The present disclosure relates to a method for non-oxidative direct conversion of methane. Specifically, in the method, a methane/hydrogen gas is introduced into an Inconel 600 reactor at a superficial velocity of 100 to 200 cm·min−1 and a catalyst is not externally introduced into the reactor. Under the conditions, a non-oxidative direct methane conversion reaction is performed in the Inconel 600 reactor. The method maximizes the reaction rate, minimizes coke formation, and increases the yields of C2 hydrocarbon compounds and aromatic compounds.

公开(公告)号：US20210346871A1

公开(公告)日：2021-11-11

申请号：US17278542

申请日：2019-09-24

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Yong Tae KIM ,  Sung Woo LEE ,  Seung Ju HAN ,  Seok Ki KIM ,  Hyun Woo KIM

IPC: B01J23/745 ,  B01J21/08 ,  B01J37/04 ,  B01J37/00 ,  B01J35/10 ,  B01J35/02 ,  C07C2/24

Abstract: The present disclosure relates to a catalyst for direct nonoxidative conversion of methane and a method of preparing the same, and more particularly to a method of preparing a catalyst for direct nonoxidative conversion of methane, in which a catalyst optimized for the direct conversion reaction of methane can be easily prepared without precise control of the reaction conditions for direct conversion of methane, thereby simultaneously maximizing the catalytic reaction rate and minimizing coke formation, and exhibiting stable catalytic performance even after long-term operation, and to a catalyst for direct nonoxidative conversion of methane prepared using the above method.

公开(公告)号：US20210230005A1

公开(公告)日：2021-07-29

申请号：US17053577

申请日：2019-05-29

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Seok Ki KIM ,  Ki Won JUN ,  Hae Gu PARK ,  Sun Mi HWANG

IPC: C01B32/40 ,  C07C1/04

Abstract: A system and method for converting carbon dioxide are proposed. The system for converting carbon dioxide includes a carbon monoxide generator for generating carbon monoxide through a reverse water gas shift reaction and a hydrocarbon generator for producing a hydrocarbon through a Fischer-Tropsch synthesis reaction, whereby the carbon monoxide generator is packed both with a catalyst for the reverse water gas shift reaction and with a catalyst for the Fischer-Tropsch synthesis reaction, thus increasing the CO yield in the carbon monoxide generator even at a low temperature compared to when the catalyst for the reverse water gas shift reaction is used alone, ultimately increasing the hydrocarbon yield in the hydrocarbon generator. Moreover, the energy of the exothermic Fischer-Tropsch synthesis reaction can be used as the energy required for the endothermic reverse water gas shift reaction, thereby increasing energy efficiency and processing yield and thus reducing operation and maintenance costs.

公开(公告)号：US20210077982A1

公开(公告)日：2021-03-18

申请号：US16642774

申请日：2018-10-23

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Yong Tae KIM ,  Seok Ki KIM ,  Hyun Woo KIM ,  Sung Woo LEE ,  Seung Ju HAN

IPC: B01J23/745 ,  B01J21/08 ,  B01J35/02 ,  C07C2/24

Abstract: The present invention relates to a catalyst for oxygen-free direct conversion of methane and a method of converting methane using the same, and more particularly to a catalyst for oxygen-free direct conversion of methane, in which the properties of the catalyst are optimized by adjusting the free space between catalyst particles packed in a reactor, thereby maximizing the catalytic reaction rate without precise control of reaction conditions for oxygen-free direct conversion of methane, minimizing coke formation and exhibiting stable catalytic performance even upon long-term operation, and to a method of converting methane using the same.

公开(公告)号：US20220127538A1

公开(公告)日：2022-04-28

申请号：US17427509

申请日：2020-01-28

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Chundong ZHANG ,  Ki Won JUN ,  Seok Ki KIM

IPC: C10L3/08 ,  C10L3/10 ,  B01D3/06 ,  B01D5/00 ,  B01D3/42

Abstract: Proposed is a carbon dioxide conversion system and method. More particularly, proposed is an eco-friendly carbon dioxide conversion system and method, the system and the method returning, in the recycling of Fischer-Tropsch synthesis reaction off-gas, a part of the off-gas to a Fischer-Tropsch reactor and producing a synthetic natural gas through methanation of the remainder of the off-gas, thereby improving overall energy efficiency and carbon efficiency, and thus a useful hydrocarbon fuel is produced from carbon dioxide, thereby providing a carbon dioxide-reducing effect.