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Ethanol pulping as a stage in the bio-refinery of olive tree prunings
dc.contributor.author | Requejo Silva, Ana | |
dc.contributor.author | Rodríguez Pascual, Alejandro | |
dc.contributor.author | González, Zoilo | |
dc.contributor.author | Vargas González, Fátima | |
dc.contributor.author | Jiménez, Luis | |
dc.date.accessioned | 2017-12-15T12:12:01Z | |
dc.date.available | 2017-12-15T12:12:01Z | |
dc.date.issued | 2012 | |
dc.identifier.uri | http://hdl.handle.net/10396/15740 | |
dc.description.abstract | Biomaterials from olive tree pruning are an abundant agricultural residue in various Mediterranean regions. A suggested use of this residue is its separation in a main fraction (trunks and stems with diameter > 1 cm) and a residual fraction (leaves and stems with diameter 1 < cm), using biorefinery procedures. The main fraction is cooked with ethanol, giving rise to a pulp, which can be used either in paper or in bioethanol production if before pulping the main fraction is subjected to a hydrothermal treatment. Pulping with 70% ethanol concentration, 185 °C for 80 min resulted in a pulp with a yield of 46.30% and a content of holocellulose, α-cellulose, and lignin of 77.17%, 62.49%, and 21.73%, respectively. The paper sheets obtained had a breaking length of 1168 m, a burst index of 0.44 kN /g, a tear index of 2.25 mN.m2/g, and a brightness of 43.66%. The pulp converted into bioethanol (by simultaneous hydrolysis and fermentation) achieved a conversion of 70 g bioethanol/100 g potential bioethanol. The residual fraction of olive tree prunings was subjected to combustion to produce thermal energy. The heating value was 18700 kJ/kg, the flame temperature range was 1094 to 2013 ºC, and the dew point temperature range of the flue gases was 47 to 53 °C. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | NC State University | es_ES |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0/ | es_ES |
dc.source | BioResources 7(3), 3142-3159 (2012) | es_ES |
dc.subject | Biorefinery | es_ES |
dc.subject | Olive tree prunings | es_ES |
dc.subject | Pulp | es_ES |
dc.subject | Paper | es_ES |
dc.subject | Bioethanol | es_ES |
dc.subject | Combustion | es_ES |
dc.title | Ethanol pulping as a stage in the bio-refinery of olive tree prunings | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://bioresources.cnr.ncsu.edu/issues/vol7-issue3/ | es_ES |
dc.relation.projectID | Gobierno de España. CTQ-2010-19844-C02-01 | es_ES |
dc.relation.projectID | Gobierno de España. TRA-2009-0064 | es_ES |
dc.relation.projectID | Junta de Andalucía. TEP-6261 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |