The relationship between chemical industry and energy is very close, and it also shows that fossil fuels and their derivative products are not only energy, but also important raw materials of chemical industry. Based on oil, the formation of a modern and powerful petrochemical industry, the production of thousands of petrochemical products. In chemical production, some materials are not only the fuel in a certain process (such as syngas production), but also the raw materials. Therefore, chemical production is not only the production of two of energy sectors, itself is often a large consumer energy.