Adsorption kinetic characteristics of H2S on activated carbon

Hung Lung Chiang, Jiun Horng Tsai, Gen Mu Chang, Yi Chun Hsu

研究成果: Article同行評審

13 引文 斯高帕斯(Scopus)

摘要

This study compared H2S adsorption kinetic parameters in both grain adsorption and column adsorption systems. Results indicated that when the nondimensional mass transfer parameter for adsorption column design was included, the axial dispersion (Pe > 1, δ < 1) and external film resistance (B ≫ 1) could be neglected, the fluid viscosity effect was small (Sc = 0.76), and the adsorbate affinity was fine (Ψ). Surface and pore diffusion controlled the adsorbent and fluid mass transfer. In addition, spent activated carbon could be treated by a thermal process and then impregnated with NaOH. After the pretreatment, the spent activated carbon could be used for H2S adsorption. Furthermore, we also propose that the H2S adsorption reaction on the carbon is due to the formation of sulfur crystals.

原文English
頁(從 - 到)325-340
頁數16
期刊Adsorption
8
發行號4
DOIs
出版狀態Published - 2002 12月

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 化學工程 (全部)
  • 表面和介面

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