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

Jiun Horng Tsai, Fu Teng Jeng, Hung Lung Chiang

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)


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 languageEnglish
Pages (from-to)357-366
Number of pages10
Issue number4
Publication statusPublished - 2001 Dec

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering
  • Surfaces and Interfaces


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