A review of application and development of combustion technology for oil sludge

Abstract

Oil sludge is a typical hazardous waste in the petrochemical and electric power industry. It has complex components and special properties, and has serious hazards to humans, plants, water, and soil. Therefore, how to realize the effective disposal of oil sludge has become an urgent issue to be solved worldwide. Among the existing oil sludge treatment approaches, combustion has been considered to be a promising technology to realize the large-scale industrial application. In the present work, the characteristics of oil sludge were described in detail. The application and development of oil sludge combustion technology were critically summarized and discussed, including factors affecting combustion, drying process, combustion characteristics, synergistic treatment technology, and formation and control of secondary pollution. Besides, the development of combustion equipment, and integrated thermal treatment technology for oil sludge were prospected. This work can be used for guiding the industrial disposal of oil sludge.

Keywords:

• Oil sludge
• review
• combustion technology
• secondary pollution

Disclosure statement

No potential conflict of interest was reported by the authors.

Data availability statement

Not applicable. No data, models, or code were generated or used in this review study.

Additional information

Funding

The authors gratefully acknowledge the financial supports from the Natural Science Foundation of Shandong Province (ZR2019BEE023, ZR2020QE199), and Key Research and Development Program of Liaoning Province (No. 2020JH2/10300099).