Pulse calorimetric detector
Abstract
Abstract AN ANALYTICAL METHOD AND COMPACT PORTABLE DEVICE USEFUL FOR MAKING QUANTITATIVE MEASUREMENTS OF THE AMOUNTS OF HYDROCRABONS AND CARBON MONOXIDE IN A GAS SAMPLE, SUCH AS AN AUTOMOBILE EXHAUST, EFFECTS THE ANALYSIS BY CATALYTIC COMBUSTION OF THE SAMPLE. A SELECTED VOLUME OF SAMPLE TO BE ANALYZED IS PULSED INTO A CHROMATOGRAPHIC COLUMN WHEREIN THE HYDROCARBON COMPONENTS, ARE SEPARATED FROM THE CARBON MONOXIDE, CARBON DIOXIDE, HYDROGEN AND OTHER COMPONENTS. THE AMOUNTS OF HYDROCARBON AND CARBON MONOXIDE ARE THEN SEPARATELY DETERMINED BY MEASURING THE HEAT GENERATED BY EACH OF THESE COMPONENTS AS THEY ARE PASSED OVER A SUITABLE COMBUSTION CATALYST AT SPECIFIC TEMPERATURES TO EFFECT COMPLETE COMBUSTION. ANALYSIS OF CARBON DIOXIDE CAN BE SIMULTANEOUSLY ACCOMPLISHED BY PROVIDING A THIRD DETECTOR DEVICE FOR CARBON DIOXIDE DETERMINATION.
Inventors
- 👤 Keith P Lanneau
Bibliographic Details
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