公开(公告)号：US20240279691A1

公开(公告)日：2024-08-22

申请号：US18000892

申请日：2021-02-17

Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Yong Hwan Kim ,  Jin Hee Lee ,  Ho Wan Hwang ,  Byoung Wook Jeon ,  Suk Min Kim ,  Sung Heuck Kang

IPC: C12P7/40 ,  B01D53/84 ,  C12N9/02

CPC classification number: C12P7/40 ,  B01D53/84 ,  C12N9/0008 ,  C12Y102/01002 ,  C12Y102/07004 ,  B01D2251/95 ,  B01D2255/804 ,  B01D2257/502 ,  B01D2258/025

Abstract: Provided are a composition, a device, a filter, a method and the like, which convert toxic carbon monoxide and/or carbon dioxide in waste gas to formic acid without by-products at room temperature and at room pressure by using carbon monoxide dehydrogenase and formic acid dehydrogenase. The composition, the device, the filter, the method and the like enable the removal of carbon monoxide which is emitted in a great amount from industries such as petrochemical and steel industry and tobacco combustion, household cooking appliances, and various boiler combustion, through a cigarette filter, an air purifier, a household cooking appliance suction filter, a gas boiler, etc. Accordingly, the production method can be variously applied.

公开(公告)号：US20230323313A1

公开(公告)日：2023-10-12

申请号：US18006563

申请日：2020-08-27

Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Yong Hwan Kim ,  Suk Min Kim ,  Jin Hee Lee

IPC: C12N15/70 ,  C12N9/02 ,  B01D53/84 ,  A62D3/02

CPC classification number: C12N9/0008 ,  A62D3/02 ,  B01D53/84 ,  C12N15/70 ,  B01D2257/502 ,  C12Y102/02004

Abstract: Provided is a carbon monoxide (CO) dehydrogenase with increased oxygen resistance and/or enzyme activity, specifically, a mutant CO dehydrogenase with increased oxygen resistance and/or enzyme activity by mutating amino acid residues. The CO dehydrogenase may detoxify toxic carbon monoxide at room temperature and pressure by easily oxidizing carbon monoxide and converting the same into carbon dioxide, and may effectively oxidize carbon monoxide even in gas including oxygen. Furthermore, since it is possible to remove carbon monoxide, which is emitted in large quantities in industries such as petrochemical and steel industries, cigarette burning, household cooking, various boilers, and combustion, through cigarette filters, air purifiers, intake filters in household cooking equipment, gas boilers, etc. the CO dehydrogenase may be utilized in various ways.