Recovery of useful chemicals from paper sludge-derived tar by catalytic partial oxidation over zirconia-supporting iron oxide catalysts in steam atmosphere

Baochua Liu, Teruoki Tago, Eri Fumoto, Hayashi Jun-Ichiro, Takao Masuda

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

To develop a method for converting paper sludge-derived tar to useful petroleum-related chemicals, the catalytic cracking of the tar over zirconia-supporting iron oxide catalysts (ZrO2/FeOx catalyst) in a steam atmosphere was examined. Useful aromatics such as toluene, ethylbenzene, and styrene are included in the tar at compositions of approximately 63% with the remaining 37% being unknown components. By applying the ZrO2/FeOx catalyst, the unknown components were effectively decomposed without decomposing the useful chemicals existing in the tar, and the concentrations of unknown components were decreased from 37 to 11%. Moreover, acetone and phenol were newly produced. The lattice oxygen of the FeOx was the active site for the catalytic decomposition of the unknown components in the tar, and the ZrO2 on FeOx had activity for decomposing H2O molecules, thereby yielding active oxygen species. The oxygen active species spilled over on the FeOx surface to regenerate the oxygen defects formed during the reaction. Accordingly, the catalytic activity and stability were due to the consumption and regeneration of the lattice oxygen.

本文言語英語
ページ(範囲)369-373
ページ数5
ジャーナルJournal of Chemical Engineering of Japan
41
5
DOI
出版ステータス出版済み - 6月 30 2008
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 化学工学(全般)

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