Device and method for coupled measurements for globally and continuously tracking traces of tars present in a gas flow

US8054082B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Meryl Brothier · Aix-en-Provence, FR
• Pierre Estubier · Manosque, FR
• Julien Comte · Chambéry, FR
• Patrick Baussand · Uriage Les Bains, FR
• Johann Soyez · Aubagne, FR

Key dates

• Filing date: Dec 28, 2007
• Grant date: Nov 8, 2011
• Expiry date: Dec 7, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N30/18
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The measurement is carried out by a device of two non- dissociable measurement chains resulting in a continuous measurement which is representative of the total concentration of tars (even as traces) of a hot gas. It involves coupling of methods including one, SPME/GC/MS/PID, which is discontinuous and a priori partial, the other, PID, which is continuous but difficult to interpret alone. It is based on on-line processing of the elements transmitted by each of the measurement methods used. A tar generator (28) allows calibration of the apparatuses and calculation of the different coefficients required.