摘要
介绍了NHD脱硫吸收原理、技术特点及操作对吸收效果的影响,分析了羰基合成醋酸生产中脱硫吸收溶液温度、再生塔压力、塔顶温度,NHD溶液中水含量对溶液的再生度脱硫指标的影响。实际生产表明,脱硫塔温度必须在30℃以内,NHD中水的质量分数以2%～6%为最佳,再生塔塔顶再生气压力在20kPa左右、温度在103～106℃为最佳。
NHD desulfurization and absorption theory,its technological features and effect of operation on absorption are introduced.Effect of desulfurization and absorption solution temperature,regenerating tower pressure,tower top temperature in acetic acid production from carboxyl group and water content in NHD solution on the regeneration desulfurization of the solution are analyzed.Production practice shows that temperature of the desulfurization tower must be controlled within 30 ℃,the best mass fraction of the water in NHD is 2%～6%,generating gas pressure of the regenerating tower is 20 kPa or so,the best temperature is 103～106 ℃.
出处
《化工生产与技术》
CAS
2010年第2期46-48,共3页
Chemical Production and Technology
关键词
聚乙二醇二甲醚
脱硫
醋酸
desulfurization indicators
pressure
temperature
water content
NHD solution
