Technique for monitoring SO.sub.3, H.sub.2 SO.sub.4 in exhaust gases containing SO.sub.2
US4319966A · kind A · utility
5Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Oct 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The SO.sub.3, H.sub.2 SO.sub.4 content of a gas environment containing SO.sub.2 and H.sub.2 O is measured by cooling the gas to a temperature to convert SO.sub.3 in the presence of H.sub.2 O to H.sub.2 SO.sub.4 to effectively separate SO.sub.3, H.sub.2 SO.sub.4 from SO.sub.2 to permit the individual measurements of SO.sub.x (SO.sub.2 +SO.sub.3), SO.sub.2 and SO.sub.3, H.sub.2 SO.sub.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.