2153395 is referenced by 4 patents.
A process for the recovery of tank bottom wastes (11) employing a flash tank (15) fed with hot, pressurized tank bottom wastes and separating a vapor component (19) and heavier bottoms (20) then fed to a stripping reactor (51) along with hot gas producing an overhead vapor (61) with a solid remainder (62). Such remainder is alternatively fed to a pyrolyzing reactor at elevated temperatures producing vapors with a solid residue. The vapor streams are used with a regenerative heat exchanger to heat said tank bottom wastes to a temperature appropriate for entering the flash tank. Certain recycled material is employed as fuel.