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Conversion of methanol into light olefins over ZSM-5 zeolite: Strategy to enhance propene selectivity

Paper ID Volume ID Publish Year Pages File Format Full-Text
40633 45860 2012 8 PDF Available
Title
Conversion of methanol into light olefins over ZSM-5 zeolite: Strategy to enhance propene selectivity
Abstract

Four ZSM-5 zeolite materials with varying crystal size, acid site density and morphology were prepared, characterized by BET, XRD, SEM, FT-IR, H/D exchange and n-hexane cracking experiments and tested as catalysts for the Methanol to Olefins (MTO) reaction at 350 °C, WHSV = 1.8 g/gh under atmospheric pressure.Optimal propene to ethene ratios (>5) were obtained over a material prepared via the fluoride route. Its superior selectivity was tentatively ascribed to its low density of strong acid sites in combination with a long diffusion pathway and few crystal defects.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (78 K)Download as PowerPoint slideHighlights► Design of ZSM-5 zeolites with tailored acidity. ► Development of stable and very active MTO catalysts. ► Optimal propene to ethene ratios (>5) obtained over a zeolite prepared via the fluoride route. ► Superior selectivity to propylene ascribed to low density of strong acid sites.

Keywords
Propene; MTO; ZSM-5 zeolite; Light olefins; Fluoride route
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Conversion of methanol into light olefins over ZSM-5 zeolite: Strategy to enhance propene selectivity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 447–448, 7 December 2012, Pages 178–185
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