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：US20170355910A1

公开(公告)日：2017-12-14

申请号：US15542264

申请日：2015-11-27

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Ki Won JUN ,  Yun Jo LEE ,  Geun Jae KWAK ,  Hae Gu PARK ,  Yong Tae KIM ,  Seok Chang KANG

IPC: C10G2/00 ,  C07C1/04 ,  C07C1/12

CPC classification number: C10G2/332 ,  C07C1/0435 ,  C07C1/12 ,  C10G2/00 ,  C10G2/50 ,  C10G11/05 ,  C10G45/68 ,  C10G69/04 ,  C10G2300/1022 ,  C10G2400/22 ,  C10G2400/30

Abstract: Disclosed is a method for directly synthesizing monocyclic aromatic compounds and long-chain olefin compounds from a carbon dioxide-rich synthetic gas and, specifically, a method for directly synthesizing monocyclic aromatic compounds and long-chain olefin compounds from a carbon dioxide-rich synthetic gas, the method comprising a step of preparing a C1-C15 short-chain hydrocarbon by Fischer-Tropsch (FT) synthesis and a step of preparing monocyclic aromatic compounds and long-chain olefin compounds by dehydrogenating the short-chain hydrocarbon products, and maximizing the yield of the short-chain hydrocarbon by using, as a synthetic gas to be used in FT synthesis, a carbon dioxide-rich synthetic gas in which the molar ratio of hydrogen, carbon monoxide and carbon dioxide is delimited to a specific range, and maximizing the yield of the monocyclic aromatic compounds or the long-chain olefin compounds by specifying the composition of a catalyst to be used in the dehydrogenation and the temperature and pressure condition.

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.

公开(公告)号：US20160296918A1

公开(公告)日：2016-10-13

申请号：US14392244

申请日：2014-11-26

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Kyoung Su HA ,  Geun Jae KWAK ,  Min Hee WOO ,  Yun Jo LEE ,  Ki Won JUN

IPC: B01J23/89 ,  C10G2/00 ,  B01J31/02 ,  B01J21/12 ,  B01J31/26

CPC classification number: B01J23/8913 ,  B01J21/12 ,  B01J23/88 ,  B01J23/8896 ,  B01J23/8906 ,  B01J31/02 ,  B01J31/26 ,  B01J33/00 ,  B01J37/0219 ,  B01J37/16 ,  B01J37/18 ,  B01J2231/625 ,  B01J2531/005 ,  C07C1/04 ,  C07C1/0425 ,  C07C1/0435 ,  C07C1/0445 ,  C07C1/045 ,  C10G2/333 ,  C10G2400/20 ,  C10G2400/22 ,  Y02P30/40

Abstract: The present invention relates to a method for producing the activated catalyst for Fischer-Tropsch synthesis comprising: a first step of reducing a catalyst for Fischer-Tropsch synthesis; a second step of preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated; and a third step of introducing the reduced catalyst prepared in the first step into the liquid hydrocarbon prepared in the second step while blocking its contact with air. Since the reduced catalyst used for Fischer-Tropsch synthesis is introduced into liquid hydrocarbon from which molecular oxygen is removed or coated by liquid hydrocarbon, the catalyst for Fischer-Tropsch synthesis activated based on the present invention maintains a high activity even if exposed to the air for a long time, thereby easily facilitating the long-term storage and long-distance transfer of the reduced catalyst.

Abstract translation: 本发明涉及一种生产费 - 托合成活化催化剂的方法，包括：还原费 - 托合成催化剂的第一步骤; 制备部分或全部分子氧的液态烃的第二步骤; 以及第三步骤，将在第一步骤中制备的还原催化剂引入到在第二步骤中制备的液体烃中，同时阻止其与空气接触。 由于用于费 - 托合成的还原催化剂被引入分子氧被液体烃除去或涂覆的液态烃中，所以基于本发明活化的费 - 托合成催化剂即使暴露在空气中也保持高活性 长时间，从而容易促进还原催化剂的长期储存和长距离转移。

公开(公告)号：US20180065110A1

公开(公告)日：2018-03-08

申请号：US15649222

申请日：2017-07-13

Applicant: Korea Research Institute of Chemical Technology

Inventor： Sung Tak KIM ,  Geun Jae KWAK ,  Ki Won JUN ,  Ahron HWANG ,  Seok Chang KANG

IPC: B01J23/10 ,  B01J29/06 ,  B01J35/00 ,  B01J35/10 ,  C10G11/05

CPC classification number: B01J23/10 ,  B01J29/061 ,  B01J35/006 ,  B01J35/10 ,  B01J2229/38 ,  B01J2231/20 ,  B01J2231/76 ,  B01J2523/375 ,  C10G11/05 ,  C10G2300/708 ,  Y02P30/42

Abstract: The present invention relates to an anti-coking catalyst having a physical property of reducing coke formation, which comprises a solid acid catalyst containing gadolinium (Gd) on the surface, a preparation method thereof, and a use thereof. The preparation method includes a first step of determining the amount of gadolinium (Gd) or a Gd-providing precursor to be used relative to the total weight of the solid acid catalyst, which reduces the coking of a specific solid acid catalyst below a specific level under a specific reaction condition; and a second step of preparing a Gd-containing solid acid catalyst using the amount determined in the first step.The catalyst according to the present invention is a catalyst in which an appropriate weight ratio of gadolinium is supported on the surface of a pure solid acid substance or solid acid substance on which a specific metal is supported. Therefore, the production of coke on the catalyst surface is inhibited while maintaining the activity of the solid acid catalyst in a hydrocarbon conversion reaction, and as a result, the catalyst of the present invention exhibits an effect of improving its lifespan.

公开(公告)号：US20170362147A1

公开(公告)日：2017-12-21

申请号：US15502134

申请日：2015-07-02

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Ki Won JUN ,  In Hyuck CHOI ,  Chun Dong ZHANG

IPC: C07C29/152 ,  C07C4/02

CPC classification number: C07C29/152 ,  C01B3/38 ,  C01B2203/0233 ,  C01B2203/0238 ,  C01B2203/061 ,  C01B2203/1058 ,  C01B2203/1064 ,  C01B2203/107 ,  C01B2203/142 ,  C07C4/02 ,  C07C4/06 ,  C07C29/151 ,  C07C29/153 ,  C07C29/74 ,  C07C31/04 ,  Y02P20/124 ,  Y02P20/142 ,  Y02P20/582 ,  C07C9/04

Abstract: A method for producing high-efficiency methanol capable of reducing emission of carbon dioxide. The method includes: a first step of preparing mixed gas by using steam and natural gas as raw materials and converting C2+ hydrocarbon contained in the natural gas into methane on a catalyst; a second step of preparing a synthesis gas including carbon monoxide, carbon dioxide, and hydrogen by reforming the mixed gas in a reformer filled with a reforming catalyst; and a third step of preparing methanol by using the synthesis gas as the raw material and reacting the synthesis gas.