New alternative energy pathway for chemical pulp mills: from traditional fibers to methane production
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10.1016/j.biortech.2017.03.140
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/105122
Tipus de documentArticle
Data publicació2017-07-01
Condicions d'accésAccés obert
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Abstract
Chemical pulp mills have a need to diversify their end-product portfolio due to the current changing bio-economy. In this study, the methane potential of brown, oxygen delignified and bleached pulp were evaluated in order to assess the potential of converting traditional fibers; as well as microcrystalline cellulose and filtrates; to energy. Results showed that high yields (380 mL CH4/gVS) were achieved with bleached fibers which correlates with the lower presence of lignin. Filtrates from the hydrolysis process on the other hand, had the lowest yields (253 mL CH4/gVS) due to the high amount of acid and lignin compounds that cause inhibition. Overall, substrates had a biodegradability above 50% which demonstrates that they can be subjected to efficient anaerobic digestion. An energy and cost estimation showed that the energy produced can be translated into a significant profit and that methane production can be a promising new alternative option for chemical pulp mills.
CitacióRodriguez, L., Vanhatalo, K., Llorca, J., Dahl, P. New alternative energy pathway for chemical pulp mills: from traditional fibers to methane production. "Bioresource technology", 1 Juliol 2017, vol. 235, p. 265-273.
ISSN0960-8524
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0960852417304212
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