Gupta, Pavan K K and Kumar, Vineet and Maity, Sudip and Gupta, Goutam Kishore and Datta, Sudipta and Singh, Arvind and Sengupta, Siddhartha (2023) Comparative Studies of Co/SBA-15 Catalysts Synthesized with Different Silica Sources Including Coal Fly Ash for Fischer-Tropsch Synthesis. ChemistrySelect, 8 (11). Art No-e202204962. ISSN 2365-6549

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Abstract

SBA-15 is synthesized using triblock copolymer Pluronic P123 as the structure directing agent and different silica sources such as tetraethyl orthosilicate (TEOS), sodium metasilicate, coal fly ash (CFA) derived supernatant and a mix of sodium metasilicate, CFA-derived supernatant for comparative study towards Fischer-Tropsch synthesis (FTS). The active metal cobalt (15 wt. %) has been impregnated in each support via the wet impregnation technique. The catalysts and supports are characterized by N-2 adsorption-desorption, Field Emission Scanning Electron Microscopy (FESEM), High-Resolution Transmission Electron Microscopy (HRTEM), X-ray Diffraction (XRD), X-ray Energy Dispersion Spectrophotometer (EDX), Fourier Transform Infrared (FTIR), and Temperature Programmed Reduction (TPR). The catalytic performance of synthesized catalysts for the FTS has been investigated in a fixed bed tubular reactor at T=220 degrees C, P=30 bar, and GHSV=500 h(-1) using simulated syngas composition equivalent to coal-derived syngas using air blown fixed bed gasifier having H-2/CO molar ratio of 2 : 1. The maximum CO conversion and middle distillate (C-6-C-20) selectivity is observed as 59.2 % and 84.6 % respectively for the catalyst support synthesized from mix of sodium metasilicate and CFA-derived supernatant.

Item Type:	Article
Subjects:	Structural Clay Products
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	06 Oct 2023 12:21
Last Modified:	06 Oct 2023 12:21
URI:	http://cgcri.csircentral.net/id/eprint/5573

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