The main production facilities of an oil refinery usually include: crude oil distillation (atmospheric and vacuum distillation), thermal cracking, catalytic cracking, hydrocracking, petroleum coking, catalytic reforming, refinery gas processing, petroleum product refining, etc. , mainly producing gasoline, jet fuel, kerosene, diesel oil, fuel oil, lubricating oil, petroleum wax, petroleum asphalt, petroleum coke and various petrochemical raw materials.