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New alternative energy pathway for chemical pulp mills: From traditional fibers to methane production.
- Source :
-
Bioresource Technology . Jul2017, Vol. 235, p265-273. 9p. - Publication Year :
- 2017
-
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 CH 4 /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 CH 4 /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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PULP mills
*ALTERNATIVE fuels
*METHANE
*HYDROLYSIS
*CELLULOSE
Subjects
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 235
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 122579408
- Full Text :
- https://doi.org/10.1016/j.biortech.2017.03.140