Volatile organic compounds absorption in packed column: theoretical assessment of water, DEHA and PDMS 50 as absorbents

被引：21

作者：

Biard, Pierre-Francois ^{[1
]}

Couvert, Annabelle ^{[1
]}

Giraudet, Sylvain ^{[1
]}

机构：

[1] CNRS, UMR 6226, Ecole Natl Super Chim Rennes, CS 50837, 11 Allee Beaulieu, F-35708 Rennes 7, France

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2018年 / 59卷

关键词：

Absorption; Mass-transfer; Volatile organic compound; DEHA; Silicone oil; MASS-TRANSFER; CHLORINATED VOCS; SILICONE OIL; TOLUENE; LIQUID; COEFFICIENTS; SOLVENTS; HYDRODYNAMICS; CONTACTOR; DILUTION;

D O I：

10.1016/j.jiec.2017.10.008

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A fixed volume packed column was simulated for the absorption at counter-current of four more or less hydrophobic volatile organic compounds (VOCs) in water and in two heavy organic solvents (PDMS 50, a silicone oil) and DEHA (Bis(2-ethylhexyl) adipate). Reliable values of the mass-transfer coefficients were deduced allowing to calculate the VOCs removal efficiency. Disappointing performances in heavy solvents, lower than 60% for isopropanol and acetone, were computed in a 3 m height column and using mild conditions (atmospheric pressure and a liquid-to-gas mass flow rate ratio around 2). However, toluene removal efficiencies higher than 90% were simulated. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：70 / 78

页数：9

共 27 条

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