公开(公告)号：US20250018357A1

公开(公告)日：2025-01-16

申请号：US18687504

申请日：2022-08-02

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Yong Tae KIM ,  Sung Woo LEE ,  Jungho SHIN ,  Seung Ju HAN ,  Tsegay Gebrekidan GEBREYOHANNES

IPC: B01J19/02 ,  B01J19/24 ,  C07C2/74

Abstract: The present invention relates to a nonoxidative methane direct converting reactor and a preparation method of ethylene and aromatic compound using the same and, more specifically, to a nonoxidative methane direct converting reactor and a preparation method of ethylene and aromatic compound using the same, wherein the reactor maximizes a catalytic reaction rate, minimizes cokes production, and provides a high conversion rate of methane and a high yield of ethylene and an aromatic compound even at a low hydrogen supply ratio in the production of ethylene and an aromatic compound from methane.

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：US20250033019A1

公开(公告)日：2025-01-30

申请号：US18753540

申请日：2024-06-25

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Yong Tae KIM ,  Sung Woo LEE ,  Jung Ho SHIN ,  Seung Ju HAN ,  Tsegay Gebrekidan GEBREYOHANNES ,  Jin Ju LEE

IPC: B01J19/24 ,  B01J23/44 ,  B01J23/50 ,  B01J31/28 ,  C07C2/76

Abstract: The present invention relates to a oxygen-free direct conversion of methane reactor and a method for producing ethylene using the same. More specifically, the invention provides a oxygen-free direct conversion of methane reactor and a method for producing ethylene from methane, wherein the reactor is selectively heated to save energy, prevent overheating with high responsiveness, and minimize coke formation, thereby achieving high methane conversion rate and high ethylene yield at a high reaction rate. The method also allows for the production of ethylene and aromatic compounds.

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：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.