Optimization of coal-based methanol distillation scheme using process superstructure method to maximize energy efficiency

被引：40

作者：

Cui, Chengtian ^{[1
]}

Li, Xingang ^{[1
,2
,3
]}

Sui, Hong ^{[1
,2
,3
]}

Sun, Jinsheng ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

[2] Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China

[3] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

来源：

ENERGY | 2017年 / 119卷

关键词：

Methanol distillation; Process superstructure; Simulation; Optimization; Heat exchanger network; Work exchanger network; HEAT-EXCHANGER NETWORKS; MODELING FRAMEWORK; PRESSURE RECOVERY; PROCESS STREAMS; EXERGY ANALYSIS; INTEGRATION; CONFIGURATIONS; DESIGN; WORK; GENERATION;

D O I：

10.1016/j.energy.2016.12.065

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Despite the current methanol distillation system (MDS) touching a highly energy-efficient level, there are still opportunities to cut more corners when moving eyesight from heating media to electricity and work efficiency of rotary equipments. To simultaneously optimize this process for higher overall energy efficiency, methodologically an improved substitute pathway is herein proposed of corresponding process superstructure. In detail, it is an all-in-one integration of heat and work exchanger networks (HEN-WEN), exemplified by a 4-column double-effect methanol distillation scheme popular among Chinese coal based factories. The completion of this work indicates a hope of potential reductions of pump electricity and reboiler steam consumption of the whole unit by further 68.38% and 15.83%, respectively. (C) 2016 Published by Elsevier Ltd.

引用

页码：110 / 120

页数：11

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