Bulletin of Chemical Reaction Engineering & Catalysis (Sep 2021)

Synthesis of Ash Derived Co/Zeolite Catalyst for Hydrogen Rich Syngas Production via Partial Oxidation of Methane

  • Amer Zaffar,
  • Bilal Alam Khan,
  • Asif Hussain Khoja,
  • Uneeb Masood Khan,
  • Qassam Sarmad,
  • Muhammad Taqi Mehran,
  • Salman Raza Naqvi,
  • Majid Ali

DOI
https://doi.org/10.9767/bcrec.16.3.10614.507-516
Journal volume & issue
Vol. 16, no. 3
pp. 507 – 516

Abstract

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The objective of this study was to analyze the catalytic performance of series of cobalt-modified Zeolite-4A supported catalysts for the syngas (CO and H2) production at 800 °C via the partial oxidation of methane (POM). The Co/Zeolite-4A catalyst was synthesized using a two-step hydrothermal method from coal fly ash. The synthesized catalysts were characterized by X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Energy Dispersive X-ray (EDX), and Thermogravimetric Analysis (TGA). The catalyst shows a crystalline structure with stability up to 900 °C. The catalytic performance analysis shows the CH4 conversion increases from 29 to 68% for 0 and 10 wt% Co over Zeolite-4A, respectively. The H2 selectivity was improved from 28–56% while CO selectivity increased from 24–52 % making H2/CO ratio > 1. The stability analysis shows the 10% Co/Zeolite-4A withstand for 24 h a time on stream (TOS). Finally, the spent catalyst analysis was carried out to check the carbon formation along with its structural analysis. The minimal carbon formation is analyzed in 24 h TOS for POM reaction. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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