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Biorefinery options to valorize the spent liquor from sulfite pulping

2014; Wiley; Volume: 90; Issue: 12 Linguagem: Inglês

10.1002/jctb.4536

1097-4660

Cristina Rueda, Pedro Á. Calvo, Gabriel Moncalián, Gema Ruiz, Alberto Coz,

Lignin and Wood Chemistry

Journal of Chemical Technology & BiotechnologyVolume 90, Issue 12 p. 2218-2226 Research Article Biorefinery options to valorize the spent liquor from sulfite pulping Cristina Rueda, Cristina Rueda Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes and Resources Engineering, University of Cantabria, Avda. los Castros s/n, 39005 Santander, SpainSearch for more papers by this authorPedro A. Calvo, Pedro A. Calvo Green Source S.A., Industrial Area, Crta. de Ganzo, 39300 Torrelavega, SpainSearch for more papers by this authorGabriel Moncalián, Gabriel Moncalián Molecular Biology Department, University of Cantabria, Avda. Cardenal Herrera Oria 2, 39011 Santander, SpainSearch for more papers by this authorGema Ruiz, Gema Ruiz Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes and Resources Engineering, University of Cantabria, Avda. los Castros s/n, 39005 Santander, SpainSearch for more papers by this authorAlberto Coz, Corresponding Author Alberto Coz Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes and Resources Engineering, University of Cantabria, Avda. los Castros s/n, 39005 Santander, SpainCorrespondence to: Alberto Coz, Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes & Resources Engineering. University of Cantabria, Avda. los Castros s/n, 39005, Santander, Spain. E-mail: coza@unican.esSearch for more papers by this author Cristina Rueda, Cristina Rueda Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes and Resources Engineering, University of Cantabria, Avda. los Castros s/n, 39005 Santander, SpainSearch for more papers by this authorPedro A. Calvo, Pedro A. Calvo Green Source S.A., Industrial Area, Crta. de Ganzo, 39300 Torrelavega, SpainSearch for more papers by this authorGabriel Moncalián, Gabriel Moncalián Molecular Biology Department, University of Cantabria, Avda. Cardenal Herrera Oria 2, 39011 Santander, SpainSearch for more papers by this authorGema Ruiz, Gema Ruiz Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes and Resources Engineering, University of Cantabria, Avda. los Castros s/n, 39005 Santander, SpainSearch for more papers by this authorAlberto Coz, Corresponding Author Alberto Coz Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes and Resources Engineering, University of Cantabria, Avda. los Castros s/n, 39005 Santander, SpainCorrespondence to: Alberto Coz, Green Engineering and Resources Research Group, www.geruc.es, Department of Chemistry and Processes & Resources Engineering. University of Cantabria, Avda. los Castros s/n, 39005, Santander, Spain. E-mail: coza@unican.esSearch for more papers by this author First published: 02 September 2014 https://doi.org/10.1002/jctb.4536Citations: 30Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract BACKGROUND Spent sulfite liquor is a by-product obtained in the process of manufacturing dissolving pulp by the acid sulfite method. A full physico-chemical characterization of this waste has been developed in order to determine if it is susceptible to valorization by means of biorefinery processes. RESULTS The main components present in this spent liquor are sugars from hemicelluloses (25.9%), mainly xylose (18.2%) because hardwood is used as a raw material, and lignosulfonates (50.6%). Taking into account the results obtained, a literature search has been done in order to establish the biorefinery options for this lignocellulosic waste, giving lignosulfonates, xylitol, ethanol, polyhydroxybutyrate or polybutylene-succinate, hydrogen and furfural as the best options. However, other compounds present in the liquor such as furans, acids and inorganic pollutants can complicate the valorization options. CONCLUSIONS Spent sulfite liquor can be a good feedstock for biomass based processes. This paper will be useful for future work regarding the potential biorefinery opportunities of the sulfite mill. © 2014 Society of Chemical Industry Citing Literature Volume90, Issue12December 2015Pages 2218-2226 RelatedInformation