Petroleum products, also known as petroleum products, mainly include various fuel oils (gasoline, kerosene, diesel oil, etc. ) and lubricating oil, as well as liquefied petroleum gas, petroleum coke, paraffin, asphalt, etc.

There are four basic raw materials in petrochemical industry: alkynes (acetylene), olefins (ethylene, propylene, butene and butadiene), aromatics (benzene, toluene and xylene) and synthesis gas. From these basic raw materials, various important organic chemical products and synthetic materials can be prepared, such as natural gas chemical industry.

The chemical industry based on natural gas is referred to as natural gas chemical industry for short. Its main contents are: making carbon black from natural gas; Extracting helium from natural gas; Hydrogen production from natural gas; Ammonia production from natural gas; Methanol from natural gas; Production of acetylene from natural gas; Chloromethane in natural gas; Preparing carbon tetrachloride from natural gas; Production of nitromethane from natural gas; Carbon disulfide made of natural gas; Ethylene from natural gas; Sulfur production from natural gas and so on.