Feng Xiao, female, Han nationality, member of the Communist Party of China, born in February 1953, Shaanxi Huangling people, doctorate, professor, doctoral tutor. He is currently a member of the Subcommittee of Teaching and Guidance of Chemical Engineering and Technology of the Department of Chemistry and Chemical Engineering of the Ministry of Education. Member of the Discipline Evaluation Section of the Department of Chemical Engineering of the National Natural Science Foundation of China, Deputy Director of the Thermodynamics and Engineering Application Committee of the China Energy Research Society Member of the China Chemical Engineering Association executive director, executive director of China Chemical Energy Conservation Association, China Society of Systems Engineering Process Engineering Engineering Committee, China Industrial Ecoeconomics and Technology Committee.

Energy system optimization: including the rational use of reaction heat, the thermal integration of the tower, heat exchange network optimization, steam system optimization, refrigeration system optimization, energy bottlenecks identification and bottlenecks. Water system integration: including wastewater reuse, wastewater reuse, wastewater recycling cycle optimization. Optimization of hydrogen system: optimization of refinery hydrogen distribution network, optimization of interaction and purification of source and well characteristics. Systematic evaluation: The energy performance and environmental friendliness of the system were evaluated by exergy analysis, accumulated exergy analysis and emergy analysis.