F - Mech Eng,Light,Heat,Weapons – 23 – G
Patent
F - Mech Eng,Light,Heat,Weapons
23
G
110/2.1
F23G 7/00 (2006.01) F23G 5/30 (2006.01) F23G 7/05 (2006.01) F23L 7/00 (2006.01)
Patent
CA 1074626
ABSTRACT OF THE DISCLOSURE A process for de-contaminating drilling cuttings and/or drilling mud, contaminated with a hydrocarbon oil, comprising the step of heating the cuttings and/or mud so as to burn off the contaminant whereby the cuttings may be disposed of without environmental spoilage and the mud recycled. The process com- prises a process for de-contaminating drilling cuttings contam- inated with hydrocarbon oil or oil-based liquid mud employed in drilling operations and contaminated with hydrocarbon oil, com- prising the steps of: providing a fluidised bed of inert par- ticles, heating the fluidised bed to a predetermined operational temperature to start up the process, delivering hydrocarbon oil- contaminated drilling cuttings down onto the surface of the heated fluidised bed or liquid mud into the heated fluidised bed whereby the hydrocarbon oil burns and contributes to the heat requirements of the process, controlling the operational temper- ature of the process by the addition of fuel to the fluidised bed and a temperature dissipant to both the interior and upper sur- face of the fluidised bed, and discharging hydrocarbon-free drill- ing cuttings or mud solids from the botton of the fluidised bed.
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