摘要
以某年产45万t合成氨装置为例,阐述了导致系统甲醇损耗的原因,通过改进和优化设备、设置尾气水洗塔、设置污甲醇收集系统、优化工艺路线、降低原料气中的氨含量、控制Claus气的温度和保持适宜的汽提氮流量等措施,大大降低了系统甲醇损耗,使其控制在0.5 kg/t氨以内。
This paper exhibits detail studies on the causes of the methanol loss for a 450,000 t/a ammonia plant. Through improving and optimizing the device and process, adding an exhaust gas washing tower and a waste methanol col- lection system, reducing ammonia content in the feed gas, controlling the temperature of the Claus gas and the nitrogen flow for the stripper, the loss of methanol can be controlled below 0.5 kg per ton of ammonia production.
出处
《煤化工》
CAS
2012年第3期40-42,共3页
Coal Chemical Industry
关键词
低温甲醇洗
甲醇损耗
优化
改进
Rectisol process, methanol consumption, optimization, improvement
