丙烷-丙烯精馏分离工艺能耗比较及前景展望
Comparison of Energy Consumption Between Propane-Propene Distillation Separation Process and Prospect Forecast Li Jintao College of Chemical and Chemical Engineering of Southwest Petroleum University In order to reduce the energy consumption of the propane-propene separation process effectively,
浏览(1738) 下载(6)
- 引用格式:
-
李金弢.丙烷-丙烯精馏分离工艺能耗比较及前景展望[J].天然气与石油,2016,34(6):0.doi:
Li Jintao.Comparison of Energy Consumption Between Propane-Propene Distillation Separation Process and Prospect Forecast Li Jintao College of Chemical and Chemical Engineering of Southwest Petroleum University In order to reduce the energy consumption of the propane-propene separation process effectively,[J].Natural Gas and Oil,2016,34(6):0.doi:
- DOI:
- 作者:
- 李金弢
Li Jintao
- 作者单位:
- 西南石油大学化学化工学院
College of Chemical and Chemical Engineering of Southwest Petroleum University
- 关键词:
- 丙烷；丙烯；热泵精馏；萃取精馏；隔壁塔；模拟
Propane; Propene; Heat pump distillation; Extractive distillation; Divided wall; Simulation
- 摘要:
- 为了降低丙烷-丙烯精馏体系的能耗，结合相关精馏分离工艺进行比较,得到优化的理论依据。从现有的丙烷-丙烯分离方式出发,规定进料比例及流量,以得到质量分数99.6 的高纯度丙烯为要求,采用Aspen Plus V 8.6将常规精馏、热泵精馏、常规萃取精馏和隔壁塔萃取精馏进行模拟,再根据模拟结果,从能源消耗及设备投资等方面进行比较。就节约能耗方面来说,后三种精馏方式相比于常规精馏分别能节省能耗34.1、20.2及42.1。结合各自的设备投资情况来看,热泵精馏及隔壁塔萃取精馏工艺具有明显优势。热泵精馏及隔壁塔萃取精馏工艺拥有广阔的工业应用前景,将是未来研究的重点方向。
In order to reduce the energy consumption of the propane-propene separation process effectively, a theoretical basis for the optimization have been provided by comparing several relevant distillation processes. It begun with the existing propane-propene separation process, set up feed ratio to reach high purity propene with the mass fraction of 99.6%. In this paper, the process simulation software of ASPEN PLUS V8.6 has been used to simulate the conventional distillation process, heat pump distillation, conventional extractive distillation and divided wall extractive distillation. Then, comparative study was conducted according to the stimulation result from the combination of energy consumption and equipment investment. In the case of energy conservation, the last three kinds of distillation could save consumption by 34.1%, 20.2% and 42.1% compared with conventional distillation. With the consideration of equipment investment, heat pump distillation and divided wall extractive distillation have significant advantages. So, heat pump distillation and divided wall extractive distillation could have wide industry applications and would be the focus of future study.
