Iranian Journal of Chemical Engineering (IJChE)
Scientific Journal

Optimization of bimetallic Ni–Cr/ZSM-5 catalysts for enhanced oxidative desulfurization: The superior performance of Ni5/Cr3 formulation

Articles in Press

Document Type : Regular Article

Authors

Gholamreza Moradi 1
Safa Al-deen A. Juboori 2

1 Faculty of Chemical Engineering and Petroleum, Razi University

2 Faculty of Chemical Engineering and petroleum, Razi University, Kermanshah, Iran

10.22034/ijche.2026.586108.1597
Abstract
Sulfur compounds pose significant challenges for environmental pollution. This issue has led to the application of various methods for sulfur detection and removal, which differ depending on the sulfur content. Among these methods is oxidative desulfurization, which has attracted considerable attention due to its mild operating conditions, ambient pressure, and relatively low temperature. In this study, a combination of chromium and nickel metals supported on ZSM-5 zeolite was used for oxidative desulfurization. Initially, nickel (3–8 wt.%) and chromium (1–8 wt.%) were separately loaded onto the zeolite to investigate the effect of each metal individually. Subsequently, a combination of 5 wt.% nickel and 1–8 wt.% chromium was simultaneously loaded onto the zeolite. The material containing 3 wt.% chromium and 5 wt.% nickel exhibited the highest efficiency within two hours. The synthesized catalysts were thoroughly characterized using FTIR, XRD, FESEM, EDX, and BET techniques. ZSM-5 zeolite with 5 wt.% nickel and 3 wt.% chromium showed 63% sulfur removal in the oxidative desulfurization process over two hours, indicating the favorable performance of this catalyst for the process.

Keywords

Oxidative desulfurization
ZSM-5 zeolite
nickel
chromium
Subjects
Iranian Journal of Chemical Engineering (IJChE)

Articles in Press, Accepted Manuscript
Available Online from 23 August 2026

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