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oai:recercat.cat:10256/207332024-06-18T12:06:59Zcom_2072_452955com_2072_2054col_2072_453062

Sewage biogas efficient purification by means of lignocellulosic waste-based activated carbons Santos Clotas, Eric Cabrera-Codony, Alba Ruiz, B. Fuente González, Elena de la Martín, María José Ministerio de Economía y Competitividad (Espanya) Carbó activat Biogàs Activated carbon Biogas Residus -- Eliminació Refuse and refuse disposal The present paper evaluates the efficiency of sustainable activated carbons obtained from the valorization of lignocellulosic waste in removing siloxanes and volatile organic compounds for the purification of anaerobic digester biogas. Pyrolized and non-pyrolized lignocellulosic residues generated in food and wood industries were used as precursor materials to obtain experimental adsorbents by a chemical activation process using several activating agents. The highest porosity was obtained by non-pyrolized residue activated by K2CO3 at 900 °C. The performance of the experimental materials was compared with that of commercial activated carbons in gas adsorption tests of siloxanes (octamethylcyclotetrasiloxane and hexamethyldisiloxane) and volatile organic compounds (toluene and limonene). The waste-based activated carbons developed in this work proved to be more efficient for the removal of both siloxanes and VOCs than the commercial samples in most of the conditions tested. Adsorption capacities correlated with porosity, while the more relevant pore size depends on the adsorbate This work was funded by MINECO – Spain (CTQ2014-53718-R) co-funded by FEDER and University of Girona. Eric Santos-Clotas thanks Universitat de Girona for his predoctoral grant (IFUdG-2015/51). Alba Cabrera-Codony acknowledges support from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 712949 (TECNIOspring PLUS) and from the Agency for Business Competitiveness of the Government of Catalonia (TECSPR16- 1-0045). LEQUIA has been recognized as consolidated research group by the Catalan Government (2017-SGR-1552) 2019-03 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion peer-reviewed http://hdl.handle.net/10256/20733 http://hdl.handle.net/10256/20733 eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biortech.2018.12.060 info:eu-repo/semantics/altIdentifier/issn/0960-8524 info:eu-repo/semantics/altIdentifier/eissn/1873-2976 CTQ2014-53718-R info:eu-repo/grantAgreement/MINECO//CTQ2014-53718-R/ES/TECNOLOGIAS INNOVADORAS PARA LA MEJORA DE BIOGAS: DESDE LA INVESTIGACION BASICA A LA EVALUACION DE TECNOLOGIAS/ Tots els drets reservats info:eu-repo/semantics/openAccess 9 p. application/pdf Elsevier © Bioresource Technology, 2019, vol. 275, p. 207-215 Articles publicats (D-EQATA) Santos Clotas, Eric Cabrera-Codony, Alba Ruiz, B. Fuente, E. Martín, María José 2019 Sewage biogas efficient purification by means of lignocellulosic waste-based activated carbons Bioresource Technology 275 207 215