Publication: Low energy spent coffee grounds briquetting with organic binders for biomass fuel manufacturing
| dc.contributor.author | Espuelas Zuazu, Sandra | |
| dc.contributor.author | Marcelino Sádaba, Sara | |
| dc.contributor.author | Echeverria Lazcano, Angel María | |
| dc.contributor.author | Seco Meneses, Andrés | |
| dc.contributor.author | Del Castillo García, Jesús María | |
| dc.contributor.department | Ingeniaritza | eu |
| dc.contributor.department | Institute of Smart Cities - ISC | en |
| dc.contributor.department | Ingeniería | es_ES |
| dc.contributor.funder | Gobierno de Navarra / Nafarroako Gobernua | es |
| dc.date.accessioned | 2021-03-04T13:30:46Z | |
| dc.date.available | 2022-10-15T23:00:10Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | This paper analyzes the ability of the spent coffee grounds (SCG) for briquettes production with xanthan and guar gums as binders. Briquettes were manufactured at room temperature, at 15%, 20%, 25% and 30% of moisture, at 8 MPa, 10 MPa and 12 MPa of compaction pressure and at 5 and 10% of binder dosage. Combination of 10% of xanthan, 15% of moisture, at 12 MPa, reached the highest dry density, 0.819 g/cm3. The combination of 5% of xanthan, 30% of moisture, compacted at 12 MPa was the most durable with a loss of mass of 3.9%. No relationships were established among water absorption and binder type, binder dosage, manufacturing moisture or compaction pressure. The lowest water absorption value, 0.25%, corresponded to the combination with 5% of xanthan, 30% of moisture, compacted at 10 MPa. The lowest heating value achieved by SCG was 25,399 J/g. Guar 5% and 10% combinations achieved 24,398 J/g and 24,321 J/g respectively. Xanthan gum 5% and 10% dosages attained 24,450 and 23,503 J/g. Binder decreased volatiles, increased fixed carbon content and decreased nitrogen content. Guar gum decreased SCG nitrogen content by 15.92% for the 5% and by 16.92% for the 10% dosage combinations, respectively. Xanthan nitrogen reduction attained 13.43% for the 5% and 14.43% for the 10% of dosage. The raw SCG ash production was 0.66%. This value increased to 0.81% and 0.97% with 5% and 10% of xanthan gum, meanwhile guar decreased it to 0.57% and 0.52%, at 5% and 10% of dosage. | en |
| dc.description.sponsorship | This work was funded by Gobierno de Navarra and Fondo Europeo de Desarrollo Regional (FEDER) by biomasa de marro de café para calderas ecológicas (Reference: 0011-1365-2016-000070), research project. | en |
| dc.embargo.lift | 2022-10-15 | |
| dc.embargo.terms | 2022-10-15 | |
| dc.format.extent | 30 p. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | 10.1016/j.fuel.2020.118310 | |
| dc.identifier.issn | 0016-2361 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/39287 | |
| dc.language.iso | eng | en |
| dc.publisher | Elsevier | en |
| dc.relation.ispartof | Fuel, 2020, 278, 118310 | en |
| dc.relation.publisherversion | https://doi.org/10.1016/j.fuel.2020.118310 | |
| dc.rights | © 2020 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |
| dc.rights.accessRights | Acceso abierto / Sarbide irekia | es |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Spent coffee grounds | en |
| dc.subject | Biomass fuel | en |
| dc.subject | Briquette | en |
| dc.subject | Xanthan gum | en |
| dc.subject | Guar gum | en |
| dc.title | Low energy spent coffee grounds briquetting with organic binders for biomass fuel manufacturing | en |
| dc.type | info:eu-repo/semantics/article | en |
| dc.type | Artículo / Artikulua | es |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | en |
| dc.type.version | Versión aceptada / Onetsi den bertsioa | es |
| dspace.entity.type | Publication | |
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