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Catalytic wet air oxidation of methylamine over supported manganese dioxide catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
53634 46977 2015 6 PDF Available
Title
Catalytic wet air oxidation of methylamine over supported manganese dioxide catalysts
Abstract

•Manganese-based catalysts supported on various oxides were prepared by impregnation.•Supported β-MnO2 catalysts were highly active in the CWAO of methylamine at 190 °C.•Formate and ammonium ions were primary products in the CWAO of methylamine.•Formate ions were totally mineralized while ammonium ions appeared to be refractory.•Catalysts were shown to be chemically stable under the applied reaction conditions.

Catalytic formulations based on manganese oxides supported on inorganic oxides were developed for the treatment of methylamine-containing aqueous effluents via catalytic wet air oxidation (CWAO). Under the applied reaction conditions (190 °C, 50 bar total pressure) in the presence of heterogeneous β-MnO2-supported catalysts, formate and ammonium ions were detected as primary products. As the reaction proceeded, a complete mineralization of formate ions was observed while ammonium ions accumulated in the reaction media. The catalytic formulations elaborated in this work were shown to be stable under the applied reaction conditions without any significant leaching of the active phase.

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Keywords
Catalytic wet air oxidation (CWAO); Methylamine; Supported β-MnO2-based catalysts
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Catalytic wet air oxidation of methylamine over supported manganese dioxide catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 258, Part 2, 1 December 2015, Pages 570–575
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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