Reaction Kinetics, Mechanisms and Catalysis

, Volume 122, Issue 2, pp 1265–1279 | Cite as

The high selectivity of Ce-hierarchical SAPO-34 nanocatalyst for the methanol to propylene conversion process

  • Masoumeh Ghalbi-Ahangari
  • Parviz Rashidi RanjbarEmail author
  • Alimorad Rashidi
  • Mohammad Teymuri


Cerium-hierarchical SAPO-34 zeolite, synthesized hydrothermally in the presence of n-propyl amine as a mesoscale template and pore size modifier, is used for the methanol to propylene (MTP) conversion. A high selectivity for propylene (52.5%) compared to a conventional microporous SAPO-34 catalyst (28.7%) in a fixed-bed reactor under atmospheric pressure at 450 °C and WHSV of 1.0 h−1 is achieved. High conversion of methanol to propylene, longer catalytic lifetime (7 h) and improved selectivity for propylene to ethylene (P/E = 5.1) are observed. These are attributed to the presence of hierarchical porosity, decrease of the acidic character of catalytic sites due to the presence of Ce and smaller path for the diffusion distance inside the mesopores having different acidity strength. The synthesized catalysts are characterized by XRD, FE-SEM, BET, NH3-TPD and TGA techniques.


Hierarchical SAPO-34 Methanol to propylene Cerium impregnated SAPO-34 Lanthanide ions Light olefins 



This work was financially supported by the research council of University of Tehran and research institute of petroleum industry (RIPI).

Supplementary material

11144_2017_1292_MOESM1_ESM.doc (1.3 mb)
Supplementary material 1 (DOC 1374 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2017

Authors and Affiliations

  1. 1.College of AlborzeUniversity of TehranTehranIran
  2. 2.Department of ChemistryUniversity of TehranTehranIran
  3. 3.Research Institute of Petroleum Industry (RIPI)TehranIran

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