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Methanol-to-olefins over FeHZSM-5: Further transformation of products

Paper ID Volume ID Publish Year Pages File Format Full-Text
49448 46745 2014 4 PDF Available
Title
Methanol-to-olefins over FeHZSM-5: Further transformation of products
Abstract

•Iron oxide sites formed on the external surface of HZSM-5•Changed weak acid and strong acid amount of HZSM-5 due to Fe modification•Successive transformation of the products of MTO over iron oxide sites•Weak acidity and cracking activity promote the selective formation of propylene.

The catalytic activity of FeHZSM-5 was investigated for the conversion of both methanol and mixed C3° + C4 hydrocarbons. For methanol conversion at WHSV = 1 h− 1 and 470 °C, 0.35% FeHZSM-5 showed increased selectivity for propylene and C2=–C4= olefins by 21% and 4%, respectively, compared with HZSM-5. The selectivity of propane and butylene decreased. High temperature favored the conversion of C3° + C4 mixture while the selectivity of ethene + propylene achieved a maximum at 470 °C. Improved olefins selectivity for methanol conversion was attributed to FeHZSM-5 with more weak acid but less strong acid amount and to further transformation of the products.

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Keywords
Methanol-to-olefins; Propylene; FeHZSM-5; Propane and butylene; Further transformation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 56, 5 November 2014, Pages 153–156
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
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Price after discount Only $4.95
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Full-text PDF Download
Online Support
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