Removal of H2S from exhaust gas by use of alkaline activated carbon

Jiun Horng Tsai; Fu Teng Jeng; Hung Lung Chiang

doi:10.1023/A:1013142405297

Removal of H₂S from exhaust gas by use of alkaline activated carbon

Jiun Horng Tsai, Fu Teng Jeng, Hung Lung Chiang

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

59 Citations (Scopus)

Abstract

The purpose of this research was to select an activated carbon and alkaline solution blend that generated the best H₂S adsorption on alkaline-activated carbon. RB₂ (activated carbon) impregnated with NaOH solution was shown to have the optimum H₂S removal efficiency. The optimum NaOH concentration was 50 mg per gram of carbon. H₂S adsorption via RB₂-NaOH₅₀ was five times that of a corresponding fresh-activated carbon. The adsorption equivalent of H₂S is nearly 1 (mol-H₂S/mol-AOH), therefore, H₂S + AOH → AHS + H₂O was the major reaction. The H₂S adsorption isotherm corresponded to the Freundlich isotherm.

Original language	English
Pages (from-to)	357-366
Number of pages	10
Journal	Adsorption
Volume	7
Issue number	4
DOIs	https://doi.org/10.1023/A:1013142405297
Publication status	Published - 2001 Dec 1

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Surfaces and Interfaces

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abstract = "The purpose of this research was to select an activated carbon and alkaline solution blend that generated the best H2S adsorption on alkaline-activated carbon. RB2 (activated carbon) impregnated with NaOH solution was shown to have the optimum H2S removal efficiency. The optimum NaOH concentration was 50 mg per gram of carbon. H2S adsorption via RB2-NaOH50 was five times that of a corresponding fresh-activated carbon. The adsorption equivalent of H2S is nearly 1 (mol-H2S/mol-AOH), therefore, H2S + AOH → AHS + H2O was the major reaction. The H2S adsorption isotherm corresponded to the Freundlich isotherm.",

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AB - The purpose of this research was to select an activated carbon and alkaline solution blend that generated the best H2S adsorption on alkaline-activated carbon. RB2 (activated carbon) impregnated with NaOH solution was shown to have the optimum H2S removal efficiency. The optimum NaOH concentration was 50 mg per gram of carbon. H2S adsorption via RB2-NaOH50 was five times that of a corresponding fresh-activated carbon. The adsorption equivalent of H2S is nearly 1 (mol-H2S/mol-AOH), therefore, H2S + AOH → AHS + H2O was the major reaction. The H2S adsorption isotherm corresponded to the Freundlich isotherm.

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