In the purchasing of crude oil, it can select appropriate kind of crude oil to take place the planned variety according to the change of market Moreover, it can be used to calculate the profit of petroleum refining and chemical enterprises, as well as the sulfur distribution in each plant and product according .

Based on brief analysis of China's energy consumption status,the article emphatically analyzes energy consumption status of China's refining & chemical industry as well as the gap between it and world advanced level and analyzes problems existing in energy conservation work at present.

Pilot study of oil refining wastewater reuse by ozone-biological activated carbon process;

The study on the planning oriented model of petrochemical unit;

Through a correlation analysis and positive study of the condition of production cost in oil refining and chemical enterprises, a study is made of the characteristics of the enterprises' production and business and a cost control mode is suggested in this paper.