Energy Optimization for a Multistage Crude Oil Distillation Process

被引：31

作者：

Gu, Wugen ^{[1
]}

Wang, Kan ^{[1
]}

Huang, Yuqing ^{[1
]}

Zhang, Bingjian ^{[1
]}

Chen, Qinglin ^{[1
]}

Hui, Chi-Wai ^{[2
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China

[2] Hong Kong Univ Sci & Technol, Chem & Biomol Engn Dept, Hong Kong, Hong Kong, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2015年 / 38卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Crude oil distillation; Energy optimization; Exergy analysis; Mathematical model; DESIGN OPTIMIZATION; FRACTIONATION UNITS; PART I;

D O I：

10.1002/ceat.201400130

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Energy optimization is a hot research topic for design and operation of crude oil distillation plants. Optimum energy utilization in a multistage crude oil distillation process is achieved by optimizing the distillation load of each distillation column as well as the yield of the sidestreams of distillation columns. A generalized multistage distillation energy consumption model is proposed, and the optimal distillation load distribution is accomplished by minimizing the total energy consumption. Based on the optimal distillation loads, a nonlinear programming model is then formulated to determine the yields of sidestreams by maximizing the thermal exergy recovery for the crude oil plant. Finally, a four-stage crude oil distillation plant is investigated to demonstrate the performance of the proposed approach. The results show a decrease in energy consumption and an increase in heat recovery.

引用

页码：1243 / 1253

页数：11

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