Laboratory-scale investigation of the removal of hydrogen sulfide from biogas and air using industrial waste-based sorbents - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Environmental Chemical Engineering Année : 2017

Laboratory-scale investigation of the removal of hydrogen sulfide from biogas and air using industrial waste-based sorbents

Résumé

Biogas is a valuable renewable energy that can be used as a fuel or as raw material for the production of hydrogen, synthesis gas and chemicals. Apart from its main constituent of CH4 and CO2, it also contained various undesirable contaminants. The removal of these contaminants such as H2S will significantly improve the quality of the biogas for further use. This work involved the valorization of calcium carbonate (CaCO3)-based solid wastes for the removal of H2S from the biogas stream. The solid wastes were analyzed by different physicochemical methods CaCO3 was found as the main component of both solid wastes, while trace amounts of other elements such as Mg, Al, etc. were also present. The solid wastes were dispersed in water and the resulted suspensions were tested for the removal of H2S from the gas phase, using a triphasic gas/liquid/solid glass reactor at room temperature and pressure. A commercial activated carbon (AC) and a pure commercial calcite were also used for comparison purpose. In addition, mixtures of AC with CaCO3 waste in different ratios were also tested. The influence of the matrix of gas (air or biogas) on the removal of H2S was evaluated. Both solid wastes showed higher performance compared to the pure commercial calcite for H2S removal. The coupling of a CaCO3 waste and AC allowed improving the sorption performance compared to pure commercial CaCO3 and AC used alone. The results obtained open a new promising way for the valorization of CaCO3-based wastes for H2S removal from biogas. (C) 2017 Elsevier Ltd. All rights reserved.
Fichier principal
Vignette du fichier
laboratory-scale-investigation.pdf (1.72 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01619255 , version 1 (20-10-2018)

Identifiants

Citer

Olumide Wesley Awe, Doan Pham Minh, Nathalie Lyczko, Ange Nzihou, Yaqian Zhao. Laboratory-scale investigation of the removal of hydrogen sulfide from biogas and air using industrial waste-based sorbents. Journal of Environmental Chemical Engineering, 2017, 5 (2), p.1809-1820. ⟨10.1016/j.jece.2017.03.023⟩. ⟨hal-01619255⟩
91 Consultations
943 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More