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Development of TiO2/Ti wire-mesh honeycomb for catalytic combustion of ethyl acetate in air

Paper ID Volume ID Publish Year Pages File Format Full-Text
43939 45996 2006 8 PDF Available
Title
Development of TiO2/Ti wire-mesh honeycomb for catalytic combustion of ethyl acetate in air
Abstract

Wire-mesh sheets coated with Ti particles were developed by using an electrophoretic deposition (EPD) method. They were thermally treated at various working conditions for enhancing the coating strength. The Ti layer was suitably porous and showed a good adherence to the wire surface, due to partial sintering of Ti particles after thermal treatment at 900 °C. Then additional calcination at 600 °C resulted in the formation of a thin TiO2 layer (∼3 μm) on the outer surface of the Ti layer. After making Pt/TiO2/Ti-coated wire-mesh honeycombs (WMH) successfully, they were applied in catalytic combustion of ethyl acetate in air. The activity was much higher than that of a ceramic honeycomb containing a similar catalyst composition, especially in the high temperature ranges. This is explained by the difference in external mass transfer rate between the two modules. TiO2/Ti-WMH had several additional advantages: (i) the active catalyst platinum could be directly impregnated, since TiO2 could be used as a catalyst support. This reduces the manufacturing process with one-step, viz., support washcoating. (ii) Since there is no additional washcoat, it can be expected that the possibility of catalyst loss during the operation becomes very low. (iii) A rapid thermal response due to the small heat capacity.

Keywords
Wire-mesh; Monolith; Electrophoretic deposition; Catalytic combustion; Honeycomb catalyst module; Ethyl acetate
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Development of TiO2/Ti wire-mesh honeycomb for catalytic combustion of ethyl acetate in air
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 313, Issue 1, 25 September 2006, Pages 86–93
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
Any Questions? feel free to contact us