Adsorption characteristics of methyl mercaptan, dimethyl disulfide, and trimethylamine on coconut-based activated carbons modified with acid and base

被引：47

作者：

Lee, Song-Woo ^{[1
]}

Daud, Wan Mohd Ashri Wan ^{[2
]}

Lee, Min-Gyu ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept Chem Engn, Pusan 608739, South Korea

[2] Univ Malaya, Dept Chem Engn, Kuala Lumpur 50603, Malaysia

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2010年 / 16卷 / 06期

关键词：

Adsorption; Activated carbon; Methyl mercaptan; Dimethyl disulfide; Trimethylamine; BINARY VAPORS; HNO3; OXIDATION; ACETONE; BENZENE; MEK;

D O I：

10.1016/j.jiec.2010.04.002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of surface modification of activated carbon on the adsorption of methyl mercaptan (MM), dimethyl disulfide (DMDS), and trimethylamine (TMA) was investigated by treatments with 1N-HNO3 solution and 1N-NaOH solution. The surface modifications changed the concentrations of functional groups on the surface of activated carbon. Also, the surface modifications changed breakthrough time and equilibrium adsorption capacity of MM, DMDS, and TMA. The adsorption capacities of MM and DMDS were increased by acid treatment, but decreased by base treatment. On the other hand, the adsorption capacity of TMA was decreased by both acid and base treatments. But the difference ranges of equilibrium adsorption capacities according to acidity and basicity of the surface were relatively small. (C) 2010 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：973 / 977

页数：5

共 6 条

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[4] Adsorption Characteristics of Acetone, Benzene and Methyl Mercaptan according to the Surface Chemistry and Pore Structure of Activated Carbons Prepared from Waste Citrus Peel in the Fixed Bed Adsorption Reactor
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[6] Adsorption of Humic Acid from Water Using Chemically Modified Bituminous Coal-based Activated Carbons
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