Method for producing clean fuel oil and high-purity chemical products from oven gas

The invention relates to a method which takes coke oven gas as raw material to prepare clean fuel oil; gas is integrated to ensure that H2: CO in the gas is equal to 1-2.1; meanwhile, after the gas is purified, qualified synthetic gas is synthesized into clean fuel oil under certain temperature and pressure. In the invention, coke oven gas is utilized for producing the fuel oil and wax products which have promising market prospect at present, thus changing waste into valuable, which is in line with the requirements of the national industrial policy and environmental protection policy. By transforming coke oven gas into fuel oil, various pollution caused by directly burning the gas can be reduced; the synthesized liquid fuel is characterized by low sulfur and containing no heavy metal impurities at all; the total hydrocarbon emission index, carbon monoxide emission index, sulphide and nitrogen oxide emission index of an engine using the fuel are all superior to an engine using traditional refined and reformed liquid fuel in the present market.