| 摘要 |
A method of treating a material to recover an oil from a material, such as drill cuttings, comprises heating the material to evaporate the oil, removing gas phase fluids from the material, and separating the oil from the gas phase fluids. Hot vapour is mixed with the material. The material being treated in the chamber(s) 1 is heated by friction within the chamber(s) 1 generated by a rotating shaft 5 and rotors or flails 15. The thermal energy generated within the chamber is not consumed in changing the phase of large quantities of liquids in the material, and more of the energy generated is available to heat up the material and evaporates the oil fractions from the solids. The hot vapour may comprise steam, and can be generated in the vapor generator 20. The shaft 5 may be heated. Condenser apparatus 30 may be provided to aid separation. |
