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SAPO-34 supported Pt–Sn-based novel catalyst for propane dehydrogenation to propylene

Paper ID Volume ID Publish Year Pages File Format Full-Text
51290 46837 2009 6 PDF Available
Title
SAPO-34 supported Pt–Sn-based novel catalyst for propane dehydrogenation to propylene
Abstract

The Pt–Sn-based catalyst was intensified using SAPO-34 as support for direct propane dehydrogenation to propylene. The catalyst was prepared by sequential impregnation method and characterized by XRF, BET, XRD, NH3-IR, NH3-TPD, H2-TPR, HR-TEM and O2-pulse coke analysis. NH3-TPD, IR spectra and XRD results suggested that the doping of metals on SAPO-34 did not affect its acidic strength and structural topology of support, respectively. Propylene selectivity of 94% and total olefins selectivity greater than 97% was achieved using Pt–Sn/SAPO-34. The results were compared with Pt–Sn/ZSM-5 under identical conditions. The possible reasons for improvement were the larger surface area, shape selectivity and particular by suitable acidity of SAPO-34.

Keywords
Pt–Sn-based catalyst; SAPO-34 support; Selective propane dehydrogenation; Propylene
First Page Preview
SAPO-34 supported Pt–Sn-based novel catalyst for propane dehydrogenation to propylene
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 14, 25 August 2009, Pages 1925–1930
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis