化工进展2016，Vol.35Issue(7)：2001-2006,6.DOI:10.16085/j.issn.1000-6613.2016.07.010
超重力减压间歇精馏的传质性能
Process of mass transfer property of batch high gravity vacuum distillation
栗秀萍 1李宁 2刘有智 1宋子彬 2李道明1
作者信息
- 1. 中北大学山西省超重力化工工程技术研究中心，山西太原 030051
- 2. 超重力化工过程山西省重点实验室，山西太原 030051
- 折叠
摘要
Abstract
Using stainless steel corrugated wire mesh packing,the separation ofco-boiling system (ethanol/water) was studied by using the high gravity vacuum distillation. The effects of the ethanol mass fraction of feedxf (50%~95%),the operating pressureP(101.33~11.33 kPa) and average high gravity factorβ(20.90~130.64) on the mass transfer property of ethanol/water system were studied. In this experiment,the running of the single-stage higee distillation equipment was stable and the mass transfer property increased first then decreased with increasingβ. And it increased with decreasingP and increasingxf,and broke the azeotropic point when P was 11.33 kPa. Under the same conditions, the separation effect of the single-stage higee distillation equipment was higher than that of the traditional tower. The mass transfer property was 7.94~14.20 mm,only 1/6~1/4 of the traditionl tower. Mass transfer property was significantly enhanced. The energy consumption analysis showed that the gravity device itself was small and easy to reach the desired degree of vacuum,reducing energy consumption significantly.关键词
单级旋转精馏床/减压精馏/乙醇/水/传质性能Key words
single-stage higee/vacuum distillation/ethanol/water/mass transfer property分类
化学化工引用本文复制引用
栗秀萍,李宁,刘有智,宋子彬,李道明..超重力减压间歇精馏的传质性能[J].化工进展,2016,35(7):2001-2006,6.
