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Biogas purification using cryogenic packed - bed technology / Martin J. Tuinier in Industrial & engineering chemistry research, Vol. 51 N° 15 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 15 (Avril 2012) . - pp. 5552–5558 Titre : Biogas purification using cryogenic packed - bed technology Type de document : texte imprimé Auteurs : Martin J. Tuinier, Auteur ; Martin Van Sint Annaland, Auteur Année de publication : 2012 Article en page(s) : pp. 5552–5558 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Biogas  treatment Résumé : A novel process concept for biogas treatment based on dynamically operated cryogenic packed beds (CPB) has been proposed and studied with numerical simulations. This work describes the CPB concept and investigates the different process steps involved with simulation results. To demonstrate the potential to treat biogas using the proposed process, the performance is compared to vacuum pressure swing adsorption (VPSA) on the basis of several criteria: purity and recovery of the obtained product, bed dimensions, and energy requirements. Simulation results reveal that the purity and recovery of CH4 are higher for the CPB concept, while also the bed capacity is much higher: the productivity (defined as kgCH4 h–1 mpacking–3) is a factor of 8 higher. The recovery is carried out with air and when operated in reversed flow mode, the novel CPB technology requires a 22% lower energy duty (2.9 MJ/kgCH4 vs 3.7 MJ/kgCH4 for the VPSA process). Furthermore, simultaneous deep H2S removal is possible using the proposed concept, although initial bed temperatures as low as −150 °C are required. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202606g [article] Biogas purification using cryogenic packed - bed technology [texte imprimé] / Martin J. Tuinier, Auteur ; Martin Van Sint Annaland, Auteur . - 2012 . - pp. 5552–5558. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 15 (Avril 2012) . - pp. 5552–5558 Mots-clés : Biogas  treatment Résumé : A novel process concept for biogas treatment based on dynamically operated cryogenic packed beds (CPB) has been proposed and studied with numerical simulations. This work describes the CPB concept and investigates the different process steps involved with simulation results. To demonstrate the potential to treat biogas using the proposed process, the performance is compared to vacuum pressure swing adsorption (VPSA) on the basis of several criteria: purity and recovery of the obtained product, bed dimensions, and energy requirements. Simulation results reveal that the purity and recovery of CH4 are higher for the CPB concept, while also the bed capacity is much higher: the productivity (defined as kgCH4 h–1 mpacking–3) is a factor of 8 higher. The recovery is carried out with air and when operated in reversed flow mode, the novel CPB technology requires a 22% lower energy duty (2.9 MJ/kgCH4 vs 3.7 MJ/kgCH4 for the VPSA process). Furthermore, simultaneous deep H2S removal is possible using the proposed concept, although initial bed temperatures as low as −150 °C are required. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202606g