Abstract: Taking a large coal chemical enterprise as an example, this paper uses SAFETI software to simulate the consequences of fire and explosion accidents in a coal gasification enterprise, set up multiple simulation scenarios, evaluate the scope of influence and harm of accidents, giving references for safety design and management of the enterprise. Through example analysis, the coal gasification unit has complicated production process equipment, many kinds of production media, and high fire risk. It is necessary to set up multiple accident simulation scenarios when analyzing accident consequences.

Key words: coal gasification plant, SAFETI software, quantitative risk assessment, influence level