Detection of carbon monoxide
US4036592A · kind A · utility
15Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | May 28, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/204998
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a catalytic method for selectively detecting carbon monoxide in the presence of hydrogen in an oxygen-containing atmosphere, such as may be used in monitoring exhaust gases from combustion processes, the catalyst is a platinum-rhodium alloy containing not less than about 10% rhodium. The catalyst is maintained at a temperature such that it will cause combustion of carbon monoxide but will not readily cause combustion of hydrogen, the thermal effect on the catalyst resulting when a test atmosphere is brought into contact with it being sensed to provide a measure of the carbon monoxide concentration in that atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.