Direct conversion of calcium carbonate to C-1-C-3 hydrocarbons

Jagadeesan, D and Sundarayya, Y and Madras, Giridhar and Rao, CNR (2013) Direct conversion of calcium carbonate to C-1-C-3 hydrocarbons. In: RSC Advances, 3 (20). pp. 7224-7229.

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Abstract

With the objective of investigating the direct conversion of inorganic carbonates such as CaCO3 to hydrocarbons, assisted by transition metal ions, we have carried out studies on CaCO3 in an intimate admixture with iron oxides (FeCaCO) with a wide range of Fe/Ca mole ratios (x), prepared by co-precipitation. The hydrogen reduction of FeCaCO at 673 K gives up to 23% yield of the hydrocarbons CH4, C2H4, C2H6 and C3H8, leaving solid iron residues in the form of iron metal, oxides and carbide particles. The yield of hydrocarbons increases with x and the conversion of hydrocarbons occurs through the formation of CO. While the total yield of hydrocarbons obtained by us is comparable to that in the Fischer-Tropsch synthesis, the selectivity for C-2-C-3 hydrocarbons reported here is noteworthy.

Item Type:	Journal Article
Publication:	RSC Advances
Publisher:	Royal Society of Chemistry
Additional Information:	Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	12 Jun 2013 11:31
Last Modified:	12 Jun 2013 11:31
URI:	http://eprints.iisc.ac.in/id/eprint/46708

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