化工学报2017，Vol.68Issue(12)：4641-4648,8.DOI:10.11949/j.issn.0438-1157.20170781
基于有机朗肯循环的混合二甲苯MVR热泵精馏工艺
MVR heat pump distillation process of mixed xylene based on organic Rankine cycle
杨德明 1顾强 1朱碧云 1王争光 1印一凡 1高晓新1
作者信息
- 1. 常州大学石油化工学院,江苏 常州 213164
- 折叠
摘要
Abstract
Conventional mechanical steam compression(MVR) heat pump distillation for separating mixed xylene exists shortcomings of high compressor power consumption and overhead sensible heat unused. Organic Rankine cycle(ORC) power generation technology can transform the low-temperature waste heat into electricity for compressor, in view of the above, the MVR heat pump distillation processes coupled by the ORC power generation technology and combined with exhaust steam regenerative cycle(EGC) were applied to separate the system. Taking total annual cost(TAC) and energy consumption as the evaluation indexes of separation process, net output power and cycle thermal efficiency are used as evaluation indexes of ORC system. Simulations for the above two kinds of distillation process were performed and the results were compared with the conventional MVR heat pump distillation process. The results show that compared with the conventional MVR heat pump distillation process,the MVR heat pump distillation processes coupled by ORC power generation technology and combined with EGC power generation technology both have certain energy saving and economic advantages, can reduce energy consumption by 9.64％ and 9.89％, and save TAC by 3.19％ and 3.50％ respectively.关键词
混合二甲苯/MVR热泵/有机朗肯循环/精馏/计算机模拟/能耗/年总费用Key words
mixed xylene system/MVR heat pump/organic Rankine cycle/distillation/computer simulation/energy consumption/total annul cost分类
化学化工引用本文复制引用
杨德明,顾强,朱碧云,王争光,印一凡,高晓新..基于有机朗肯循环的混合二甲苯MVR热泵精馏工艺[J].化工学报,2017,68(12):4641-4648,8.
