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Effect of silicon content on the catalytic behavior of chabazite type silicoaluminophosphate in the transformation of methanol to short chain olefins

Paper ID Volume ID Publish Year Pages File Format Full-Text
54795 47026 2013 7 PDF Available
Title
Effect of silicon content on the catalytic behavior of chabazite type silicoaluminophosphate in the transformation of methanol to short chain olefins
Abstract

•SAPO-34 has been synthesized with different silicon framework contents.•It has been studied the relationship between silicon content and catalytic performance in MTO.•The most important factor affecting the catalytic properties in this work is the crystal size.

AlPO-34 and SAPO-34 molecular sieves with different silicon content have been synthesized using a hydrothermal system in presence of tetraethylammonium hydroxide (TEAOH) and evaluated as catalysts for the transformation of methanol to short chain olefins. The results showed that SAPO-34 materials prepared with medium-high silicon concentration in the framework present quite similar silicon environment distributions and, when it is so, the key factor to obtain materials with improved catalytic performance is the crystallite size.

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Keywords
AlPO-34; SAPO-34; Silicon content; Methanol-to-olefins
First Page Preview
Effect of silicon content on the catalytic behavior of chabazite type silicoaluminophosphate in the transformation of methanol to short chain olefins
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 213, 15 September 2013, Pages 219–225
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis