Articles producció científica> Enginyeria Química

Steam explosion and vibrating membrane filtration to improve the processing cost of microalgae cell disruption and fractionation

  • Dades identificatives

    Identificador: imarina:5132674
    Autors:
    Lorente, Esther Haponska, Monika Clavero, Ester Torras, Caries Salvado, Joan
    Resum:
    The aim of this study is to explore an innovative downstream route for microalgae processing to reduce cost production. Experiments have been carried out on cell disruption and fractionation stages to recover lipids, sugars, and proteins. Steam explosion and dynamic membrane filtration were used as unit operations. The species tested were Nannochloropsis gaditana, Chlorella sorokiniana, and Dunaliella tertiolecta with different cell wall characteristics. Acid-catalysed steam explosion permitted cell disruption, as well as the hydrolysis of carbohydrates and partial hydrolysis of proteins. This permitted a better access to non-polar solvents for lipid extraction. Dynamic filtration was used to moderate the impact of fouling. Filtration enabled two streams: A permeate containing water and monosaccharides and a low-volume retentate containing the lipids and proteins. The necessary volume of solvent to extract the lipids is thus much lower. An estimation of operational costs of both steam explosion and membrane filtration was performed. The results show that the steam explosion operation cost varies between 0.005 $/kg and 0.014 $/kg of microalgae dry sample, depending on the cost of fuel. Membrane filtration cost in fractionation was estimated at 0.12 $/kg of microalgae dry sample.
  • Altres:

    Autor segons l'article: Lorente, Esther Haponska, Monika Clavero, Ester Torras, Caries Salvado, Joan
    Departament: Enginyeria Química
    e-ISSN: 2227-9717
    Autor/s de la URV: Salvadó Rovira, Joan / Torras Font, Carles
    Paraules clau: Steam explosion Microalgae Fractionation Dynamic membrane filtration Costs Cell disruption
    Resum: The aim of this study is to explore an innovative downstream route for microalgae processing to reduce cost production. Experiments have been carried out on cell disruption and fractionation stages to recover lipids, sugars, and proteins. Steam explosion and dynamic membrane filtration were used as unit operations. The species tested were Nannochloropsis gaditana, Chlorella sorokiniana, and Dunaliella tertiolecta with different cell wall characteristics. Acid-catalysed steam explosion permitted cell disruption, as well as the hydrolysis of carbohydrates and partial hydrolysis of proteins. This permitted a better access to non-polar solvents for lipid extraction. Dynamic filtration was used to moderate the impact of fouling. Filtration enabled two streams: A permeate containing water and monosaccharides and a low-volume retentate containing the lipids and proteins. The necessary volume of solvent to extract the lipids is thus much lower. An estimation of operational costs of both steam explosion and membrane filtration was performed. The results show that the steam explosion operation cost varies between 0.005 $/kg and 0.014 $/kg of microalgae dry sample, depending on the cost of fuel. Membrane filtration cost in fractionation was estimated at 0.12 $/kg of microalgae dry sample.
    Àrees temàtiques: Process chemistry and technology Engineering, chemical Engenharias ii Ciências biológicas ii Chemical engineering (miscellaneous) Bioengineering
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 22279717
    Adreça de correu electrònic de l'autor: carles.torras@urv.cat joan.salvado@urv.cat
    Identificador de l'autor: 0000-0002-3112-3519 0000-0003-2238-6082
    Data d'alta del registre: 2024-09-07
    Volum de revista: 6
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.mdpi.com/2227-9717/6/4/28
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Processes. 6 (4):
    Referència de l'ítem segons les normes APA: Lorente, Esther Haponska, Monika Clavero, Ester Torras, Caries Salvado, Joan (2018). Steam explosion and vibrating membrane filtration to improve the processing cost of microalgae cell disruption and fractionation. Processes, 6(4), -. DOI: 10.3390/pr6040028
    DOI de l'article: 10.3390/pr6040028
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2018
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Bioengineering,Chemical Engineering (Miscellaneous),Engineering, Chemical,Process Chemistry and Technology
    Steam explosion
    Microalgae
    Fractionation
    Dynamic membrane filtration
    Costs
    Cell disruption
    Process chemistry and technology
    Engineering, chemical
    Engenharias ii
    Ciências biológicas ii
    Chemical engineering (miscellaneous)
    Bioengineering
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