Determining the oxygen demand of combustible materials in aqueous dispersions
Abstract
Abstract DETERMINING THE OXYGEN DEMAND OF COMBUSTIBLE MATERIALS IN AQUEOUS DISPERSIONS, COMPRISING THE STEPS OF FLOWING A FEED GAS STREAM COMPOSED OF AN INERT GAS CONTAINING OXYGEN INTO A CONFINED, HEATED COMBUSTION ZONE, AT A CONSTANT RATE. THE FEED GAS STREAM IS PASSED THROUGH A COMBUSTION SUPPORTING, POROUS CATALYST BED IN THE COMBUSTION ZONE WHICH IS HEATED TO A COMBUSTION SUPPORTING TEMPERATURE AND THEN IS FED INTO A DETECTOR FOR SMALL AMOUNTS OF FREE OXYGEN. A SMALL AMOUNT OF A DILUTE AQUEOUS DISPERSION OF A COMBUSTIBLE MATERIAL IS INJECTED INTO THE FEED GAS STREAM WITHIN THE COMBUSTION ZONE UPSTREAM FROM THE CATALYST BED. THE RESULTING GASEOUS PRODUCT IS THEN SWEPT FROM THE COMBUSTION ZONE INTO THE OXYGEN DETECTOR BY THE CONTINUING PRESSURE OF THE FEED GAS STREAM. SINCE THE FEED GAS STREAM CONTAINS ONLY A SMALL AMOUNT OF OXYGEN, VERY SMALL AMOUNTS OF COMBUSTIBLE MATERIALS IN THE AQUEOUS DISPERSION PRODUCE A LARGE PERCENTAGE DEVIATION IN THE OXYGEN CONTENT OF THE EFFLUENT GAS FROM THE COMBUSTION ZONE.
Inventors
- 👤 James L Teal
- 👤 Charles E Hamilton
- 👤 Dennis A Clifford
Bibliographic Details
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