Optimization and efficiency analysis of polygeneration system with coke-oven gas and coal gasified gas by Aspen Plus

► The dual-gas sourced polygeneration system is an optimal coal utilization system. ► One unit with optimal performance does not equal the best whole system. ► It is significant to do the entire optimization for polygeneration system. ► Chemical process and power generation system were integrated seamlessly. ► It realized element reasonable transformation and energy cascade utilization.