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Improved catalytic oxidation of cumene by formation of catalytically active species during reaction over NaX zeolite

Paper ID Volume ID Publish Year Pages File Format Full-Text
48127 46494 2009 7 PDF Available
Title
Improved catalytic oxidation of cumene by formation of catalytically active species during reaction over NaX zeolite
Abstract

Catalytic oxidation of isopropylbenzene (cumene, 210 ppm) in wet air was essentially investigated over basic NaX zeolite. Experiments were carried out in presence of water (11,000 ppm) and at a gas hourly space velocity (GHSV) of 18,000 h−1. Over NaX, the cumene showed a catalyst activation phenomenon during the reaction time. Indeed, after 175 min of reaction at 250 °C the conversion of cumene increases from 45% to 100% and the CO2 yield from 30% to 95% probably because of the formation of active species mainly localized at the cavities apertures of the basic zeolite. Peroxide or peroxy radicals were proposed to be these particular active species.

Keywords
VOCs; Catalytic oxidation; Active coke; Pore mouth catalysis
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Improved catalytic oxidation of cumene by formation of catalytically active species during reaction over NaX zeolite
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 88, Issues 1–2, 29 April 2009, Pages 106–112
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
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