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Aluminium chloride: A new aluminium source to prepare SAPO-34 catalysts with enhanced stability in the MTO process

Paper ID Volume ID Publish Year Pages File Format Full-Text
39791 45836 2014 8 PDF Available
Title
Aluminium chloride: A new aluminium source to prepare SAPO-34 catalysts with enhanced stability in the MTO process
Abstract

•SAPO-34 has been synthesized using very dilute zeotype precursor solutions.•Synthesis of nanosized SAPO-34.•Catalysts with enhanced activity in the MTO process have been prepared.

The MTO process produces lower olefins from natural gas or coal via methanol, providing an interesting route to obtain valuable petrochemicals from carbon sources alternative to petroleum. Small-pore silicoaluminophosphate SAPO-34 has been proven an efficient catalyst for the MTO process, showing exceptionally high selectivity to lower olefins. However, these catalysts undergo rapid deactivation due to deposition of high molecular weight hydrocarbons on the pore entrances, which completely blocks the internal channels of the SAPO-34 crystals. In the present work, we explore the use of very dilute zeotype precursor solutions to reduce the size of the crystals of these materials, improving greatly their catalytic behaviour in the MTO process by increasing the catalyst life time.

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Keywords
MTO; SAPO-34 nanocrystals; Aluminium chloride; Dilute precursor solutions
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Aluminium chloride: A new aluminium source to prepare SAPO-34 catalysts with enhanced stability in the MTO process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 472, 22 February 2014, Pages 72–79
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