MAP/DAP装置氨蒸发热源用浓缩磷酸蒸汽冷凝液的可行性论证  

Feasibility demonstration of using steam condensate from PA concentration as the heat source of ammonia evaporator in MAP/DAP plant

作　　者：吴健 杨毅 刘立峰 龙章海 

机构地区：[1]瓮福(集团)有限责任公司瓮福磷肥厂,贵州福泉550501

出　　处：《磷肥与复肥》2010年第1期31-32,共2页Phosphate & Compound Fertilizer

摘　　要：磷铵(MAP/DAP)生产需用气氨,液氨在氨蒸发器一般用低压蒸汽为热源气化获得气氨。该文通过热衡算说明可用磷酸浓缩加热器100℃的蒸汽冷凝液作为热源获得气氨,方案实施后,年节约蒸汽约12万t,相当于节约费用497万元/a。The liquid ammonia is heated in the ammonia evaporator with low pressure steam as the heat source for gaseous ammonia in ammonium phosphate （MAP/DAP） production. According to the heat balance calculation, it is considered feasible that 100 ℃ steam condensate from phosphoric acid concentration plant is used as heat source to obtain gaseous ammonia, after the scheme implementation, the mass of saving steam is about 120 000 t and equivalent to cost-saving 4.97 million RMB Yuan per year.

关 键 词：磷铵 液氨气化 热源分析 

分 类 号：TQ442.14[化学工程—化学肥料工业]