Oxidative fixation of SO2 into aqueous H2SO4 over a pitch-based active carbon fiber above room temperature

Isao Mochida, Shuji Miyamoto, Keiichi Kuroda, Shizuo Kawano, Kinya Sakanishi, Yozo Korai, Akinori Yasutake, Masaaki Yoshikawa

研究成果: ジャーナルへの寄稿学術誌査読

27 被引用数 (Scopus)

抄録

Oxidative fixation of SO2 into aqueous H2SO4 was examined at 50-70 °C over a pitch-based active carbon fiber (ACF) of large surface area. A higher temperature was found to require higher humidity and a longer contact time for the complete removal of SO2 at the stationary state. Smaller adsorption of SO2 and less condensed water on the ACF make it difficult to fix SO2 on the ACF and to elute aqueous H2SO4 continuously from the ACF, as revealed by the adsorbed SO2 on ACF and the eluted aqueous H2SO4 from the bed. Among the ACFs of different calcination temperatures, a particular ACF of the largest surface area calcined at 1100 °C showed the largest activity regardless of the reaction temperatures and humidity, indicating a major influence of the number of active sites. The hydrophilicity of the ACF has little influence on condensing water on the ACF above room temperature.

本文言語英語
ページ(範囲)374-378
ページ数5
ジャーナルEnergy and Fuels
13
2
DOI
出版ステータス出版済み - 3月 1999

!!!All Science Journal Classification (ASJC) codes

  • 化学工学一般
  • 燃料技術
  • エネルギー工学および電力技術

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