G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/64 (2006.01)
Patent
CA 2093218
2093218 9206360 PCTABS00011 Detecting the presence of PAC's in the effluent of a combustion system by detecting the presence of a high molecular weight PAC's having five or more rings. A position along an exhaust duct (5) is selected at which high molecular weight PAC's may be present. The effluent is illuminated with radiation having a wavelength absorbed by the high molecular weight PAC's in the gas phase. An argon laser (30) produces the illuminating radiation in the form of a beam which is directed into port (18) of the duct (5) sidewall. The fluorescence from the illuminated effluent is detected, and analyzed by an analyzer (46) by which comparison to the known fluorescence of high molecular weight PAC's in the gas phase is made.
Beer Janos M.
Kahn Arslan A.
Majed Toqan A.
Sarofim Adel F.
Thijssen Jan H.
Massachusetts Institute Of Technology
Smart & Biggar
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