A sWds heat exohanger(o) is the fom of a sheu and tube rangement having a shell secdon ) through which heated oil 12)passes and a tube section (3 A screw convey extendss along its length and ha a drive motor #15). DriB cutgs outhr hydrocarbon contaminated miaterials areedin through an inlet (16 n W hen conveyed along the tube (13) where heat transfer takes place On exiting the tube 13) oiland wter vapour nees and escapes through a f URst outet (1 7) whie the now cleaned drill cuttings or other materIals fb through a second outlet (1) forming a discharge zone. The apparatus aims to reduce the oil content of the solids to less than 05%. The solids can then simply be disposed of The base oil can be reclaimed and reused. N! IN 0A U')>0 .D C.- - IZ wr 0 U)0, oD owI or w C?) HL >20 CD cl fir LU c o
