Author, as appears in the article.: Magdalena Olkiewicz; Carmen M. Torres; Laureano Jiménez; Josep Font; Christophe Bengoa
Department: Enginyeria Química
URV's Author/s: OLKIEWICZ, MAGDALENA; TORRES COSTA, CARMEN MARIA; JIMÉNEZ ESTELLER, LAUREANO; FONT CAPAFONS, JOSÉ; BENGOA, CHRISTOPHE JOSÉ
Keywords: Process modelling sewage sludge Biodiesel Economic evaluation
Abstract: Municipal wastewater sludge is a promising lipid feedstock for biodiesel production, but the need to eliminate the high water content before lipid extraction is the main limitation for scaling up. This study evaluates the economic feasibility of biodiesel production directly from liquid primary sludge based on experimental data at laboratory scale. Computational tools were used for the modelling of the process scale-up and the different configurations of lipid extraction to optimise this step, as it is the most expensive. The operational variables with a major influence in the cost were the extraction time and the amount of solvent. The optimised extraction process had a break-even price of biodiesel of 1232 $/t, being economically competitive with the current cost of fossil diesel. The proposed biodiesel production process from waste sludge eliminates the expensive step of sludge drying, lowering the biodiesel price.
Research group: Process Intensification, Simulation and Environment Technology (PI-SET) Sustainable Computer Aided Process Engineering
Thematic Areas: Enginyeria química Ingeniería química Chemical engineering
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0960-8524
Author identifier: 0000-0002-9849-6715; 0000-0001-6322-5862; 0000-0002-3186-7235; 0000-0002-4007-7905; 0000-0001-9160-5010
Record's date: 2016-05-19
Last page: 131
Journal volume: 214
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
First page: 122
Publication Type: Article Artículo Article
Repositori URV