Exhaust gas purifier for methanol-fueled engines
US5269140A · kind A · utility
8Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1990 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Oct 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adsorber comprising zeolite retained on structure of substantially inorganic fibers disposed in the exhaust gas stream of an engine. The invention has particular application to purification of exhaust gas streams of methanol fueled engines in combination with catalytic means for decomposing undesired organic matter from the exhaust gas stream. The adsorber adsorbs organic matter from the exhaust gas at relatively low exhaust gas temperatures at which the catalyst is of reduced effectiveness, and desorbs organic matter at elevated temperatures at which the catalyst is of heightened effectiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.