Treatment of oil sludge represents a significant expense. Tens of thousands of tons of oil sludge are generated annually from oil production, storage, refining, and transportation as well as tankers cleaning.Oil sludge related problem is also caused by leakage at oil tankers and oil rigs, resulting in oil contaminated sand/soil and water polluted with oil sludge. Proper treatment of oil sludge is essential since these waste materials are hazardous to human and environment. The design specifications determine configuration of the pyrolysis system, i.e. whether to proceed with the oil sludge disposal and pyroilysis gas oxidation (and direct electricity generation as depends on calorific value of intial feedstock) or with oil condensing. Pyrolysis scheme with oil condensing may require further oil refinery. Requirements to clean the contaminated sand and oil-water sludge after environmental catastrophes with oil tankers and rigs have led to the development of a special version of the pyrolysis system.
Pyrolysis facility for oil contaminated soil