摘要：Adjusting operation conditions of a distillation column is one of the effective ways to save energy consumption of the column. However, operation conditions of a distillation column will affect the energy consumption of both the column and the heat exchanger network. Based on the cold and hot composite curves with all streams including the reboiler, condenser, and process streams, this paper analyzes the influence of the pressure variation of an across pinch distillation column on the utility consumption of the whole process. The stripper column in a continuous reforming process is taken as a case study. The results show that the reduction of the column pressure can increase the heat duty of condenser and decrease the heat duty of reboiler. However, for the streams from the top or bottom of the column, the reduction of the column pressure can save cooling utilities but increase heating utilities. The overall energy saving effect of the unit is the comprehensive effect of the condenser, reboiler and streams from the top or bottom of the column. Analysis of the stripper of a continuous reformer shows that when the tower pressure is reduced by 200.0 kPa, the heating utility usage will be reduced by 577.5 kW. ? 2022, Editorial Board of CIESC Journal. All right reserved.

ISSN号：0438-1157

卷、期、页：v 73,n 5,p2052-2059

发表日期：2022-05-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Huagong Xuebao/CIESC Journal

参与作者：Duan, Wenting,Ren, Siyue,Feng, Xiao

第一作者：王彧斐

论文类型：期刊论文

论文概要：Duan, Wenting,Ren, Siyue,Feng, Xiao,王彧斐，Distillation column pressure optimization integrated with the heat exchanger network，Huagong Xuebao/CIESC Journal，2022，v 73,n 5,p2052-2059

论文题目：Distillation column pressure optimization integrated with the heat exchanger network