CIESC Journal

• 化工学报 • 上一篇    下一篇

CO_2在碳酸丙烯酯和胺、水混合溶剂中的溶解度

乐清华,涂晋林,施亚钧   

  1. 华东化工学院化学工程研究所,华东化工学院化学工程研究所,华东化工学院化学工程研究所 上海200237 ,上海200237 ,上海200237
  • 出版日期:1993-10-25 发布日期:1993-10-25

THE SOLUBILITY OF CO_2 IN MIXED SOLVENTOF PROPYLENE CARBONATE WITH METHYLDIETHANOLAMINE AND WATER

Le Qinghua, Tu Jinlin and Shi Yajun (Chemical Engineering Research Centre, East China University of Chemical Technology, Shanghai 200237)   

  • Online:1993-10-25 Published:1993-10-25

摘要: 近年来,为解决碳酸丙烯酯(Propylene Carbonate简称丙碳)脱除 C风工艺中出现 的脱碳净化度低、溶剂循环量大、设备腐蚀严重等问题而相继开发了多种改型丙碳复合溶 剂,其中作者等人研制的由丙碳和适量的叔胺(MDEA)、水构成的混合溶剂,不仅脱碳 性能明显优于丙碳,而且有效地解决了设备腐蚀问题。本文研究了CO。在此混合溶剂中 的溶解度与温度和压力的关系。

Abstract: The solubility of CO2 in a mixed solvent of propylene carbonate (P.C.) with methyldiethanolamine (MDEA) and water was measured at CO2 partial pressure of one atm within the temperature range of 10- 35℃ and at 25℃ over a wide range of CO2 partial pressures. The effect of the miscibihty of P.C. and water in the mixed solvent on the solubility of CO2 was investigated. As a result, immiscible mixed solvent shows significant improvement in absorption of CO2,which can be explained by the chemical equilibrium theory. Appropriate compounding of mixed solvents was determind.