Mechanical pressing method, oil separation is the process of using mechanical force to squeeze oil from oil, which has problems such as low oil yield, poor oil quality, and low product added value; Solvent extraction method is the application of chemical solvents to soak oil and extract oil. The solvents in the oil are prone to residue, have poor safety, and also have problems such as high energy consumption and environmental pollution.

① System integration can systematically solve the problem of oil sludge emissions formed during oil extraction, gathering, transportation, and refining processes through reduction and resource utilization, achieving emission reduction and harmless treatment;
② High resource utilization rate, no secondary pollution, oil and gas resource utilization rate in oil sludge is greater than 99.8%, residual solid matter after high-temperature treatment is completely harmless, no pollutant transfer, meets the strictest international emission standards, and the technology has reached the world's advanced level;
③ The process is simple and the economic benefits are excellent. Oil sludge does not require complex separation processes, and the treatment process is simple. The use of mature coal water slurry gasification technology in the coal chemical industry for hazardous waste treatment can save coal resources and achieve significant economic benefits No adverse effects on gasification process and equipment, no need to modify existing equipment, low processing investment