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A new way to enhance the coke-resistance of Mo/HZSM-5 catalyst for methane dehydroaromatization

Paper ID Volume ID Publish Year Pages File Format Full-Text
52883 46890 2007 4 PDF Available
Title
A new way to enhance the coke-resistance of Mo/HZSM-5 catalyst for methane dehydroaromatization
Abstract

A thermal dealumination method was applied to modify HZSM-5 zeolites, and the Mo/HZSM-5 catalyst pre-dealuminated in N2 stream exhibited rather high catalytic activity and stability in the methane dehydroaromatization reaction (MDA). 29Si NMR, FT-IR and TPO measurements show that the thermal treatment of the HZSM-5 in inert atmosphere induced partial removal of tetrahedral coordinated Al from the zeolite lattices leading to elimination of the original excess strong Brönsted acid sites (known as responsible for the coke formation), and thus significantly promoted the coke-resistance of the Mo/HZSM-5 catalyst.

Keywords
Methane dehydroaromatization; HZSM-5 zeolite; Mo/HZSM-5 catalyst; Thermal dealumination
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A new way to enhance the coke-resistance of Mo/HZSM-5 catalyst for methane dehydroaromatization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 539–542
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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Full-text PDF Download
Online Support
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