石灰石-石膏湿法脱硫系统运行优化研究

Optimal operation research of limestone-gypsum wet flue gas desulfurization

石灰石-石膏湿法烟气脱硫是全球广泛应用的脱硫技术,火电机组超低排放改造有效降低了燃煤电厂的污染物排放总量,但是运行成本也相应增加。因此通过对脱硫系统的运行进行优化,降低运行成本,保证脱硫系统安全、稳定、经济运行逐渐成为研究重点。通过对大唐三门峡电厂发电机组脱硫系统进行详细分析,研究了对吸收剂、pH值、密度、浆液循环泵等最佳运行参数,提出了较为详细优化运的方法,提高经济效益,对于脱硫系统的稳定、经济运行起到重要作用。

Limestone-gypsum wet flue gas desulfurization system is widely used in worldwide.Ultra-low emission transformation can effectively reduce pollutant emissions from coal-fired power plants,however,the operation costs increased most.In order to solve the problem and guarantee the system security stability economic,operation,optimal operation became a hotspot and research focus.In this paper,the optimum parameters of absorbent,pH value,density and circulating pumps were researched based on the wet flue gas desulfurization of Da Tang San Menxia Power Plant.Finally,the optimal operation method was proposed,which played an important role in increasing economic benefits and the stability economic operation of the desulfurization system.