Intermediate heat-integrated sequence of distillation columns and its energy-saving property

XU Lianghua; CHEN Dawei; LUO Yiqing; YUAN Xigang

doi:10.3969/j.issn.0438-1157.2013.07.027

您当前的位置：

首页 >

文章列表页 >

Intermediate heat-integrated sequence of distillation columns and its energy-saving property

更新时间：2025-12-10

- Intermediate heat-integrated sequence of distillation columns and its energy-saving property
- CIESC Journal Issue 7, Pages: 2503-2510(2013)
- 作者机构：
  
  天津大学化工学院, 化学工程联合国家重点实验室,天津,300072
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.07.027
  CLC： Q028
- Online First：05 July 2013，
  
  Published：05 July 2013
- 稿件说明：
移动端阅览
XU Lianghua, CHEN Dawei, LUO Yiqing, et al. Intermediate heat-integrated sequence of distillation columns and its energy-saving property[J]. CIESC Journal, 2013, (7): 2503-2510.
DOI：

XU Lianghua, CHEN Dawei, LUO Yiqing, et al. Intermediate heat-integrated sequence of distillation columns and its energy-saving property[J]. CIESC Journal, 2013, (7): 2503-2510. DOI： 10.3969/j.issn.0438-1157.2013.07.027.

摘要

提出一种带有中间热集成的精馏塔序列(IHISDC)的流程

针对三组元混合物分离的简单塔直接序列

对该流程进行了分析。与传统热集成精馏序列(HISDC)相比

提出的IHISDC通过中间换热器将高压塔的精馏段与低压塔的提馏段进行局部热集成

使能量集成精馏塔之间的压力差更小

进而使能耗费用下降。同时发现

IHISDC中的高压塔再沸器热负荷和低压塔冷凝器热负荷增加

由于换热器数量的增加

IHISDC的投资费用较大。为了进一步降低IHISDC的年度总费用

需要对其设计参数进行优化。

Abstract

A configuration of an intermediate heat-integrated sequence of distillation columns (IHISDC)is proposed in this paper.The IHISDC configuration is analyzed by applying it in a direct sequence of distillation columns for ternary mixture separation.In this configuration

heat is transferred from the rectifying section of the high pressure column to the stripping section of the low pressure column through intermediate heat exchangers.Comparing to the conventional heat integrated sequence of distillation columns

the proposed IHISDC system presents smaller pressure difference between the two heat-integrated columns in the sequence

and consequently saves the energy cost for the reboiler of the high pressure column or for the condenser of the low pressure column.It is also found that the heat duties of the reboiler of the high pressure column and the condenser of the low pressure column are higher

and that the investment cost increases with the increase of the number of heat exchangers.The IHISDC needs to be optimized in order to lower its total annual cost(TAC).

关键词

Keywords

references

Views

369

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

The analysis of energy efficiency for TVSA-based direct air capture system

Study on comminution characteristics of straw biomass

Current status of energy consumption of adsorption CO2 direct air capture

Research progress in carbon dioxide capture using liquid-liquid phase change absorbents

Simulation analysis of temperature characteristics of the high-pressure hydrogen refueling process

Related Author

GE Tianshu

CHEN Yunhao

LI Qian

WANG Kuihua

WU Junye

LIU Shaonan

LIU Haifeng

LU Haifeng

Related Institution

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University

State Key Laboratory of Coal Liquefaction, Gasification and Utilization with High Efficiency and Low Carbon Technology, Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology

The Research Institute of Safety & Environment Technology, China National Petroleum Corporation

Sinopec Guangyuan Natural Gas Purification Company

College of Chemistry and Chemical Engineering, Southwest Petroleum University

⁰