4.7 Article

Metal catalysts supported on activated carbon fibers for removal of polycyclic aromatic hydrocarbons from incineration flue gas

期刊

JOURNAL OF HAZARDOUS MATERIALS
卷 197, 期 -, 页码 254-263

出版社

ELSEVIER
DOI: 10.1016/j.jhazmat.2011.09.083

关键词

Adsorption; Catalytic oxidation; Activated carbon fiber; PAHs; Incineration flue gas

资金

  1. National Science Council of the Republic of China, Taiwan [NSC 96-2221-E-131-019-MY3]

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The aim of this research was to use metal catalysts supported on activated carbon fibers (ACFs) to remove 16 species of polycyclic aromatic hydrocarbons (PAHs) from incineration flue gas. We tested three different metal loadings (0.11 wt%, 0.29 wt%, and 0.34 wt%) and metals (Pt. Pd, and Cu), and two different pretreatment solutions (HNO3 and NaOH). The results demonstrated that the ACF-supported metal catalysts removed the PAHs through adsorption and catalysis. Among the three metals. Pt was most easily adsorbed on the ACFs and was the most active in oxidation of PAHs. The mesopore volumes and density of new functional groups increased significantly after the ACFs were pretreated with either solutions, and this increased the measured metal loading in HNO3-0.48% Pd/ACFs and NaOH-0.52% Pd/ACFs. These data confirm that improved PAH removal can be achieved with HNO3-0.48% Pd/ACFs and NaOH-0.52% Pd/ACFs. (C) 2011 Elsevier B.V. All rights reserved.

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