Iranian Chemical Engineering Journal

Iranian Chemical Engineering Journal

Studying of the Synergistic Effect of H-ZSM-5 Zeolite and γ-Alumina as the Supports of an Promoted Iron Catalyst for the Production of Light Olefins from Synthesis Gas

Document Type : Original Article

Authors
Kh. Shahmirzadi 1
A. Zamaniyan 2
S. R. Shabanian 3
Y. zamani 4
1 M. Sc. Student of Chemical Engineering, Noshirvani University of Technology
2 Associante Professor of Chemical Engineering, Research Institute of Petroleum Industry
3 Assistant Professor of Chemical Engineering, Noshirvani University of Technology
4 Assistant Professor of Chemistry, Research Institute of Petroleum Industry
10.22034/ijche.2024.442504.1394
Abstract
The production of light olefins, are the key components in petrochemical industries, is possible via different technologies. The Fischer–Tropsch (FT) process as a proper method, aims to convert syngas to light olefins with high selectivity over a proper catalyst, reduce methane formation, and avoid the production of excess CO2. In this research, Fe/Co/ γ-Al2O3 and                Fe/Co/ γ-Al2O3+H-ZSM-5 catalysts synthesized by the IWI procedure to research the effects of  H-ZSM-5 zeolite addition on the catalytic activity and selectivity in a fixed-bed reactor were Characterization of catalysts was carried out usingby XRD, BET, . Operation of synthetic catalysts conducted in a temperature range of 260–280-300 ˚C, pressure range of 1–5-10 bar, feed ratio of 1.3 and a space velocity of 2 . By adding 20% of zeolite H-ZSM-5 to gamma-alumina support, the production of light olefins increased from 7.86% to 8.49%, the percentage of carbon monoxide increased from 23.76% to 26.42% and also The selectivity of  decreased from 89.43% to 41.28%.
Keywords
Production of Light Olefins
Fischer-Tropsch Synthesis
H-ZSM-5 Zeolite
Fe-Co/-Al2O3+H-ZSM-5
Synergistic Effect
Subjects
Iranian Chemical Engineering Journal
Volume 24, Issue 139
July and August 2025
Pages 102-116