NHD脱碳系统节能改进  

Improvement on Energy Conservation in NHD CO_2 Removal System

作　　者：何杰[1] 张学岗[1] 韩喜民 荆云峰 

机构地区：[1]天津大学化学工程研究所,300072 [2]山西丰喜集团临猗分公司,041000

出　　处：《化肥工业》2003年第6期51-52,共2页Chemical Fertilizer Industry

摘　　要：对原有NHD脱碳流程进行改进 ,将低压闪蒸槽移至气提塔上部 ,运用柏努利方程计算了NHD脱碳系统中富液从高压闪蒸槽至低压闪蒸槽的压力降 ,从而确定了将高压闪蒸槽的位移高度。取消原流程中的富液泵 ,不仅减少了投资 ,而且节省了操作费用。An improvement is made on the original NHD CO_2 removal process by moving the low-pressure flash tank to the top of the stripper and using the Bernoulli equation to calculate the pressure drop of the rich solution from the high-pressure flash tank to the low-pressure flash tank in the NHD CO_2 removal system, and thus the displacement height of the high-pressure flash tank is ascertained. The elimination of the rich solution pump in the original process not only ?reduces the investment costbut also lowers the operating cost.

关 键 词：合成氨装置 NHD脱碳系统 节能 技术改造 低压闪蒸槽 高压闪蒸槽 

分 类 号：TQ113.251[化学工程—无机化工]