Evaluation of energy demand and the sustainability of different bioethanol production processes from sugar beet (CROSBI ID 158659)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Šantek, Božidar ; Gwehenberger, Gernot ; Ivančić Šantek, Mirela ; Narodoslawsky, Michael ; Horvat, Predrag
engleski
Evaluation of energy demand and the sustainability of different bioethanol production processes from sugar beet
In this study, different bioethanol production processes from sugar beet were analyzed to improve energy input/output ratio and process sustainability. As inputs for fermentative bioethanol production, sugar factory can use some intermediate products [e.g. raw sugar juice (≈15–18% sugar) or concentrated sugar syrup (≈65–67% sugar)] or by-products (e.g. molasses≈50% sugar). From energetic point of view, the main energy consumption operations in bioethanol production are: sugar extraction from sugar beet chips, sugar juice concentration by evaporation, ethanol distillation as well as distillers mash concentration and beet chips drying. In decision-making processes for different bioethanol production processes from sugar beet the concept of ecological footprint was used. Results of ecological footprint pointed out that energy demand and sustainability of standard process can be significantly improved by introduction of new technologies, i.e. simultaneous sugar extraction, pulp fermentation and product recovery (SEFPR) combined with biogas production from fermentation residues.
bioethanol; sugar beet energy demand; ecological footprint; process sustainability
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Podaci o izdanju
54 (11)
2010.
872-877
objavljeno
0921-3449
10.1016/j.resconrec.2010.01.006