公开(公告)号：US20230001387A1

公开(公告)日：2023-01-05

申请号：US17756397

申请日：2020-11-25

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Iljeong HEO ,  Young Woo YOU ,  Yun Ho JEONG ,  Ji Hoon PARK ,  Jin Hee LEE ,  Soo Min KIM ,  Tae Sun CHANG

IPC: B01J23/46 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  B01D53/94 ,  F01N3/10 ,  F01N3/28

Abstract: An object of the present invention is to increase the reduction performance of nitrogen oxides compared to existing three-way catalysts; simultaneously inhibit the emission of ammonia and nitrous oxide; simplify a process by means of a method of further doping an iridium-ruthenium catalyst into a commercial three-way catalyst; and expand the scope of application. The present invention provides a catalyst for simultaneously inhibiting the emission of ammonia and nitrous oxide by doping an iridium-ruthenium catalyst component into a three-way catalyst (TWC), a diesel oxidation catalyst, or a lean NOx trap supported on a honeycomb support.

公开(公告)号：US20190009253A1

公开(公告)日：2019-01-10

申请号：US16069619

申请日：2017-01-13

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY ,  NF CO., LTD

Inventor： Iljeong HEO ,  Jeong Kwon SUH ,  Beom Sik KIM ,  Tae Sun CHANG ,  Yun Ho JEONG ,  Ji Hoon PARK ,  Soo Min KIM ,  Ji Na CHOI

IPC: B01J23/34 ,  B01J35/00 ,  B01J35/02 ,  B01J37/04 ,  B01J37/03 ,  B01J37/06 ,  B01J37/02 ,  B01J37/08 ,  C01B5/00 ,  C01B13/02

CPC classification number: B01J23/34 ,  B01J23/688 ,  B01J35/0013 ,  B01J35/026 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J37/06 ,  B01J37/088 ,  C01B5/00 ,  C01B13/0203 ,  C01B15/01 ,  C01G45/02 ,  C01G45/1214

Abstract: The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.

公开(公告)号：US20230374925A1

公开(公告)日：2023-11-23

申请号：US18031136

申请日：2021-10-08

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Sang Joon KIM ,  Jin Hee LEE ,  Young Jin KIM ,  Tae Sun CHANG ,  Young Woo YOU ,  Soo Min KIM ,  Il Jeong HEO

IPC: F01N3/20 ,  F01N3/28 ,  B01J35/04 ,  B01J35/00 ,  B01J23/40 ,  B01J29/072 ,  B01J23/30 ,  B01D53/94

CPC classification number: F01N3/2026 ,  F01N3/2828 ,  B01J35/04 ,  B01J35/0033 ,  B01J35/0006 ,  B01J23/40 ,  B01J29/072 ,  B01J23/30 ,  B01D53/9413 ,  F01N2370/04 ,  F01N2330/06 ,  F01N2330/30 ,  F01N2510/068 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1028 ,  B01D2255/1026 ,  B01D2255/50 ,  B01D2255/20761 ,  B01D2255/20738 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/9155 ,  B01D2258/01 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702

Abstract: An object of the present invention is to provide a heating carrier that does not heat all of exhaust gas flowing into a catalyst converter, but directly supplies, to a catalyst layer, thermal energy in the form of an instantaneous pulse to effectively activate a catalyst during a cold start-up period, and thus may reduce emission pollutants with a small amount of energy, and an exhaust gas reduction carrier having the heating carrier. In order to accomplish the object, the heating carrier of the present invention may include a main body of which the inside is formed to have a honeycomb structure, the main body being formed of a conductive ceramic material that is a nonmetallic heating element; and a catalyst layer formed by coating a first catalyst on a surface of the main body.

公开(公告)号：US20190076826A1

公开(公告)日：2019-03-14

申请号：US16109664

申请日：2018-08-22

Applicant: Korea Research Institute of Chemical Technology

Inventor： Ji Hoon PARK ,  Kwan Yong JEONG ,  Soo Min KIM ,  Tae Sun CHANG ,  Iljeong HEO

IPC: B01J23/46 ,  C07D295/027 ,  B01J27/24 ,  B01J37/08

Abstract: The present invention relates to a Ru—Pd bimetallic catalyst for use in hydrogenation of a compound, and more particularly to a catalyst prepared by loading both ruthenium and palladium on a g-C3N4 support and to a selective hydrogenation process of a pyridine group in a reaction system containing both a pyridine group and a benzene group using the catalyst.