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Combination of a non-thermal plasma and a catalyst for toluene removal from air: Manganese based oxide catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
48918 46528 2006 7 PDF Available
Title
Combination of a non-thermal plasma and a catalyst for toluene removal from air: Manganese based oxide catalysts
Abstract

A series of manganese based catalysts have been tested in a combined plasma-catalyst reactor in the reaction of toluene removal from air. In the standard conditions (toluene = 240 ppm, energy density = 172 J/L, 1 g of catalyst, 315 mL/min), the best catalyst (manganese oxide supported on active carbon) is able to transform 55% of the toluene into carbon oxides. According to the study of the reaction mechanism, it appears that the toluene is oxidized both in-plasma by short-lived species generated by plasma and in post-plasma on the catalyst surface by the ozone formed in the plasma, the reaction on the catalyst being more selective in carbon dioxide formation than the reaction in plasma. We have shown that the toluene conversion increases when the toluene concentration in air decreases. A model able to describe the behavior of the plasma reactor and the plasma-catalyst reactor is proposed.

Keywords
Toluene removal; Non-thermal plasma; Plasma-catalyst reactor; Kinetic study
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 68, Issues 3–4, 7 November 2006, Pages 92–98
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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