关键词: 炼化一体化, 燃料气系统, 热值, 集中管理, 净化提纯, 火炬气回收, 智能管控

Abstract: The fuel gas system of large-scale refining and chemical integrated enterprises presents characteristics such as multiple supply points of fuel gas, imbalanced supply and demand of fuel gas, and easy fluctuation of the system, which affects the thermal efficiency and environmental emissions of heating furnaces of the unit, and also poses great challenges to the safe and stable operation of the unit. By adopting a series of combined measures such as optimizing the design of fuel gas system pipeline network, recovering high value-added components in fuel gas, controlling fuel gas emissions, recovering flare gas, and constructing a production optimization model with the goal of balancing the heat value of the fuel gas system and maximizing operational benefit and implementing information monitoring and intelligent control on it, the safe and stable operation of heating furnaces and optimized utilization of fuel gas resources have been achieved, achieving the goals of energy conservation and emission reduction, cost reduction and benefit increase, and improving enterprise competitiveness.

Key words: refining and chemical integration, fuel gas system, heat value, centralized management, purification, flare gas recovery, intelligent control