Gas purification-treating agents and gas purifying apparatuses
US6589493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1998 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Dec 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are a gas purification-treating agent and a gas purifying apparatus, which treat carbon monoxide and/or hydrogen contained in a gas in the presence of oxygen. The gas purification-treating agent consists of an adsorbent having carbon dioxide and/or water adsorptivity, and a metal or metal compound which is carried on the adsorbent and activates oxidation reaction of carbon monoxide and/or hydrogen. The gas purifying apparatus has the gas purification-treating agent contained in a container having a gas inlet and a gas outlet. The adsorbent adsorbs carbon dioxide and/or water contained originally in the gas, as well as, carbon dioxide and/or water to be formed by the oxidation reaction of carbon monoxide and/or hydrogen. The metal or metal compound is at least one selected from Au-on-metal oxides, Au-on-metal hydroxides and an Au colloidal powder, or palladium and/or platinum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.