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Hydrate-based removal of carbon dioxide and hydrogen sulphide from biogas mixtures: Experimental investigation and energy evaluations

Beatrice Castellani - No affiliation found

2014/11/01 Full-length article DOI: 10.1016/j.biombioe.2014.08.026 Journal: Biomass and Bioenergy

Abstract:

Highlights•Tests on CO2 and H2S removal from biogas mixture via gas hydrates were carried out.•An up-scaled apparatus was used with hydrate formation times of few minutes.•CO2 hydrates were produced through spraying aqueous solution into the gas phase.•H2S was completely captured along with CO2 in 30- minute formation process.•Aspects for process improvement and energy costs are evaluated.