Study on Comparison and Selection of SCR Denitration Reductant's Preparation System in Heat-engine Plant

摘要

SCR denitration reductant's preparation system is the supporting system in heat-engine plant producing reducing agent. Its safety, reliability and stability are crucial. Based on the aspects of technology and economy, this paper makes a detailed comparison and selection of three kinds of denitration reductant's preparation system. They are liquid ammonia process for caustic soda purification, urea pyrolysis and urea hydrolyzation, and finally draws the conclusions.