Additive for denitration urea solution of power plant as well as preparation method and application of additive

• Main Authors: PANG YAFENG, ZHU ZONGMIN, LU HUIQIN, ZHANG YUAN, LI YUXING, WANG WEIMIN, ZHAO YANG
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention discloses an additive for a denitration urea solution of a power plant as well as a preparation method and application of the additive. The additive for the denitration urea solution of the power plant comprises alkynediol, alkynediol polyether, alkynediol polyether sulfonate and a solvent. The additive for the denitration urea solution of the power plant is added into the urea solution according to a proper proportion, the dispersity of urea in the solution can be improved, the particle size of liquid drops can be reduced during atomization, blockage of a spray gun or an ammonia production system caused by urea crystallization is avoided, the NH3 conversion rate is increased, and the NOx removal effect is improved. In addition, the additive can inhibit corrosion of a urea solution to the wall of the metal pipe. 本发明公开了一种用于电厂脱硝尿素溶液的添加剂及其制备方法和应用。所述用于电厂脱硝尿素溶液的添加剂，包含有炔二醇、炔二醇聚醚、炔二醇聚醚磺酸盐和溶剂。本发明的用于电厂脱硝尿素溶液的添加剂按适当比例添加到尿素溶液中，可改善尿素在溶液中的分散性，雾化时可减小液滴粒径，避免尿素结晶造成喷枪或制氨系统堵塞，提高NH3转化率，并提升NOx去除效果。此外，本发明的添加剂还可以抑制尿素