Saw, Shiva Kumar and Datta, Sudipta and Gupta, Pavan K. and Chavan, Prakash D. and Kumari, Shweta and Sahu, Gajanan and Dhaigude, Nilesh D. (2026) The significant role of cerium, gallium, and zirconium in cu-based catalyst for syngas to methanol: a bench scale experimental approach. Polyhedron, 284.

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Abstract

The Cu-based catalysts mainly accounted for the synthesis of methanol from synthesis gas. The promotion of Cu-based catalysts resulted in a significant increase in methanol selectivity, even with small quantities of an effective promoter. The Cusingle bondZn system without promoter and with promoters such as Cerium (Ce), Gallium (Ga), and Zirconium (Zr) are induced in the Cusingle bondZn system individually and studied their ease of Cu reduction. All four catalysts have been prepared via the coprecipitation method, and an experimental study has been carried out for syngas hydrogenation to methanol on a bench-scale fixed bed tubular reactor at 60 bar and 200 °C. The synthesized catalysts were characterized by multiple techniques, including Field Emission Scanning Electron Microscopy (FE-SAM), and Energy Dispersive X-ray Spectroscopy (EDS), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Temperature programmed reduction (TPR), Brunauer–Emmett–Teller (BET) surface area analyzer, X-ray fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), True Density-Porosity, Thermogravimetric Analysis (TGA), and the liquid product has been studied by Gas chromatography-FID and Karl fisher titrator. The determinantal effect of Ce, Ga, and Zr doping in the Cusingle bondZn catalyst and their respective activity has been studied based on electronic, geometric, reaction kinetics, and acid/base surface properties. This paper has briefly deliberated on the syngas, mainly CO hydrogenation to methanol over each of the catalysts for 72 h as well as the space-time yield (STY) and methanol selectivity. The cause of significant improvements in activity and stability regarding STY of Ce-promoted Cusingle bondZn catalyst over Ga and Zr promoted on the Cusingle bondZn system has been elaborated. The Influence of Ce, Ga & Zr for higher active Cu dispersion on the catalyst surface to promote its activity towards methanol synthesis has been briefly annotated.

Item Type:	Article
Subjects:	Chemicals and Liquid Fuels
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	20 Nov 2025 06:29
Last Modified:	20 Nov 2025 06:34
URI:	https://cimfr.csircentral.net/id/eprint/2906

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