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Review
. 2018 Sep;56(3):289-311.
doi: 10.17113/ftb.56.03.18.5546.

Bioethanol Production from Renewable Raw Materials and Its Separation and Purification: A Review

Arijana Bušić  1 , Nenad Marđetko  1 , Semjon Kundas  2 , Galina Morzak  3 , Halina Belskaya  3 , Mirela Ivančić Šantek  1 , Draženka Komes  1 , Srđan Novak  1 , Božidar Šantek  1
Affiliations
Review

Bioethanol Production from Renewable Raw Materials and Its Separation and Purification: A Review

Arijana Bušić et al. Food Technol Biotechnol. 2018 Sep.

Abstract

Production of biofuels from renewable feedstocks has captured considerable scientific attention since they could be used to supply energy and alternative fuels. Bioethanol is one of the most interesting biofuels due to its positive impact on the environment. Currently, it is mostly produced from sugar- and starch-containing raw materials. However, various available types of lignocellulosic biomass such as agricultural and forestry residues, and herbaceous energy crops could serve as feedstocks for the production of bioethanol, energy, heat and value-added chemicals. Lignocellulose is a complex mixture of carbohydrates that needs an efficient pretreatment to make accessible pathways to enzymes for the production of fermentable sugars, which after hydrolysis are fermented into ethanol. Despite technical and economic difficulties, renewable lignocellulosic raw materials represent low-cost feedstocks that do not compete with the food and feed chain, thereby stimulating the sustainability. Different bioprocess operational modes were developed for bioethanol production from renewable raw materials. Furthermore, alternative bioethanol separation and purification processes have also been intensively developed. This paper deals with recent trends in the bioethanol production as a fuel from different renewable raw materials as well as with its separation and purification processes.

Keywords: bioethanol; bioethanol separation and purification; bioprocess operational modes; raw material pretreatment; renewable feedstocks.

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Figures

Fig. 1
Fig. 1
Biorefinery concepts: a) bottom-up and b) top-down. atraditional products, bnew products (8)
Fig. 2
Fig. 2
Predictions of the world bioethanol production (a) and consumption (b) by 2024 (17)
Fig. 3
Fig. 3
The scheme of bioethanol production from lignocellulose containing raw materials. 1=milling, 2=pretreatment, 3=saccharification, 4=heat exchanger, 5=propagator, 6=bioreactor, 7=stripping column, 8=rectifying column, 9=molecular sieves
See this image and copyright information in PMC

References

    1. Bhaskar T, Bhavya B, Singh R, Naik DV, Kumar A, Goyal HB. Thermochemical conversion of biomass to biofuels. In: Pandey A, Larroche C, Ricke SC, Dussap CG, Gnansounou E, editors. Biofuels – Alternative feedstocks and conversion processes. Oxford, UK: Academic Press; 2011. pp. 51–77. https://doi.org/ 10.1016/B978-0-12-385099-7.00003-6 - DOI
    1. Forster P, Ramaswamy V, Artaxo P, Berntsen T, Betts R, Fahey DW, et al. Changes in atmospheric constituents and in radiative forcing. In: Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, et al., editors. Climate change 2007: The physical science basis. Cambridge, UK: Cambridge University Press; 2007, pp. 129–234.
    1. Cherubini F, Strømman AH. Principles of biorefining. In: Pandey A, Larroche C, Ricke SC, Dussap CG, Gnansounou E, editors. Biofuels – Alternative feedstocks and conversion processes. Oxford, UK: Academic Press; 2011. pp 3–24. https://doi.org/ 10.1016/B978-0-12-385099-7.00001-2 - DOI
    1. Lange JP. Lignocellulose conversion: An introduction to chemistry, process and economics. Biofuels Bioprod Biorefin. 2007;1(1):39–48. 10.1002/bbb.7 - DOI
    1. Khanal SK. Anaerobic biotechnology for bioenergy production: Principles and applications. Ames, IA, USA: Wiley-Blackwell; 2008. https://doi.org/ 10.1002/9780813804545 - DOI

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