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：US20220266192A1

公开(公告)日：2022-08-25

申请号：US17630306

申请日：2020-07-24

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Iljeong HEO ,  Jin Hee LEE ,  Young Woo YOU ,  Yun Ho JEONG ,  Sang Joon KIM

IPC: B01D53/04 ,  B01D45/06 ,  G01N1/22

Abstract: The present invention relates to a kit for concentrating low-concentration air pollutants, and to a concentration kit for concentrating low-concentration air pollutants, and then desorbing same so as to detect the components and concentrations of the pollutants. The present invention comprises: a sensor positioned on a channel in which gas moves, so as to detect pollutants in the gas; and a concentration part, which comprises an adsorbent for adsorbing and desorbing the pollutants in the gas moving to the sensor, so as to transfer concentrated pollutants to the sensor.

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.