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Identifying economical route for crude glycerol valorization: Biodiesel versus polyhydroxy-butyrate (PHB).

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Kumar, Lalit; Kaur, Rajwinder; Tyagi, Rajeshwar Dayal; Drogui, Patrick (2021). Identifying economical route for crude glycerol valorization: Biodiesel versus polyhydroxy-butyrate (PHB). Bioresource Technology , vol. 323 . p. 124565. DOI: 10.1016/j.biortech.2020.124565.

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Résumé

Crude glycerol, a by-product of biodiesel industry, has been used for production of biodiesel and polyhydroxy-alkanoates. But question is: which product is economically favorable using crude glycerol as substrate? In this study, energy balance and economic assessment has been carried out for crude glycerol valorization for B10 biodiesel and polyhydroxy-butyrate (PHB) production. For same quantity of crude glycerol utilized, energy ratio for B10 production was higher than PHB production while unit production cost for B10 was lower than that of PHB. For 50 million L plant capacity of biodiesel, unit production cost was 0.77 $/L B10 while for 2 million kg plant capacity of PHB, unit production cost was 4.88 $/kg PHB. Thus, in present scenario production of biodiesel seems economically better than production of PHA with crude glycerol as raw material. This study is useful for researchers, environmental scientists and industries in identifying effective route for crude glycerol valorization.

Type de document: Article
Mots-clés libres: crude glycerol; economic evaluation; biodiesel; polyhydroxy-butyrate (PHB)
Centre: Centre Eau Terre Environnement
Date de dépôt: 03 févr. 2021 19:26
Dernière modification: 22 févr. 2021 18:44
URI: http://espace.inrs.ca/id/eprint/11223

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