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Isocyanic acid hydrolysis over Fe-ZSM5 in urea-SCR

Paper ID Volume ID Publish Year Pages File Format Full-Text
52918 46891 2006 4 PDF Available
Title
Isocyanic acid hydrolysis over Fe-ZSM5 in urea-SCR
Abstract

Two different iron exchanged zeolites were studied for the hydrolysis of isocyanic acid (HNCO) to ammonia, which is an important intermediate step in the selective catalytic reduction (SCR) of NO with urea. The hydrolysis reaction proceeded with very high activity and selectivity on over-exchanged as well as low-exchanged Fe-ZSM5 catalyst samples. The hydrolysis activity of the catalysts was inversely correlated with their Brønsted acidity, which decreased with the degree of iron exchange and the degree of ageing. Thus, over-exchanged Fe-ZSM5 had the highest activity, which even increased when the catalyst was aged.

Keywords
HNCO hydrolysis; Fe-ZSM5; Urea-SCR; NOx
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Isocyanic acid hydrolysis over Fe-ZSM5 in urea-SCR
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 8, August 2006, Pages 600–603
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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