Adsorbent-catalyst for exhaust gas purification, adsorbent for exhaust gas purification, system for exhaust gas purification, and method for exhaust gas purification
US5538697A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1994 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Dec 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adsorbent-catalyst for exhaust gas purification, has a honeycomb structure having a large number of passages divided by partition walls, substantially parallel to the flow direction of an exhaust gas to be purified, an adsorbent layer having a hydrocarbon adsorbability, supported on the honeycomb structure, and a catalyst layer having a three-way catalytic activity or an oxidizing ability, supported on the honeycomb structure, in which adsorbent-catalyst the adsorbent layer and the catalyst layer are separately supported on the honeycomb structure in all or part of the cross sections of the adsorbent-catalyst perpendicular to the flow direction of the exhaust gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.