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Petroleum Science and Technology Volume 32, 2014 - Issue 23
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Original Articles

An Investigation on Isobutane Aromatization Over an H-ZSM-5 Catalyst

S. BaradaranChemical Engineering Department, Amirkabir University of Technology, Tehran, Iran
,
M. SohrabiChemical Engineering Department, Amirkabir University of Technology, Tehran, IranCorrespondence[email protected]
,
P. M. BijaniCatalyst Research Group, Petrochemical Research and Technology Company, National Petrochemical Company, Tehran, Iran
,
S. J. RoyaeeRefining Technology Development Division, Research Institute of Petroleum Industry, Tehran, Iran
&
S. SahebdelfarCatalyst Research Group, Petrochemical Research and Technology Company, National Petrochemical Company, Tehran, Iran
Pages 2889-2895 | Published online: 31 Oct 2014
 
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Abstract

The H-ZSM-5(SiO2/Al2O3 = 35) catalyst was synthesized hydrothermally using commercial waterglass as the silica source and it was characterized by XRD, BET, SEM, and NH3-TPD techniques. Isobutane aromatization over the prepared catalyst was studied and the results were compared with those of propane in a fixed-bed reactor. Despite higher conversion of isobutane, the aromatics selectivity was higher for propane with the former exhibited more rapid catalyst deactivation. Furthermore, isobutane aromatization was carried out at 450–550°C. Higher temperature increased aromatics yield as well as deactivation rate.

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