Device and method for continuous measurement of concentrations of tars in a gas flow
US7968055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Dec 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N5/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The measurement is conducted by means of thermogravimetric scales (10) bearing at one end of the beam (20) a catalyst body (30) for catalysing a coking reaction of the tars present in the gas state. Precautions are taken in order to ensure homogeneity and regularity of the sampled gas flow and to guarantee predominant catalysis on the catalytic body (30), the weight increase of which gives the weight of the deposited coke and indirectly the content of tars present in the gas state in the gas to be measured. A calorimetric device (34) for analyzing gases from the coking of the tars provides a complementary and/or additional measurement. The solid tars are filtered beforehand, but their content may be measured by an auxiliary device.Possible application to analyzing gases from biomass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.