Oil & Gas is a major raw material for the petrochemical industry. Refineries use thermal cracking to process crude oil and produce liquid fuels of varying densities, properties and functions. Refinery residues are also reprocessed according to their type, actual needs and local regulations. The petrochemical industry is to reduce the corrosiveness and impurities of oil and natural gas by filtering, processing and other processing methods, and produce the required chemicals and synthetic materials through complex and professional processing.