A process integration approach to the design of the two- and three-column methanol distillation schemes

被引：23
作者：
Douglas, AP
Hoadley, AFA [1 ]
机构：
[1] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia
[2] Plant Solut Pty Ltd, Carnegie, Vic 3163, Australia
来源：
APPLIED THERMAL ENGINEERING | 2006年 / 26卷 / 04期
关键词：
heat integration; side reboiling; methanol purification; energy efficiency;
D O I：
10.1016/j.applthermaleng.2005.07.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A thermal and economic comparison of two- and three-column methanol distillation schemes for the purification of crude methanol is presented. The schemes investigated include the conventional two-column scheme involving a topping column and a refining column, two different enrichment cascade three-column schemes and a double-effect three-column scheme. Three different reforming process technologies are considered for the front-end process. Heat integration methodologies are used to determine the optimum column pressure settings. The benefits of enhanced heat integration with the background process are assessed through a determination of the respective capital, operating and investment costs. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：338 / 349
页数：12
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