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Beyond Sugar and Ethanol Production: Value Generation Opportunities Through Sugarcane Residues

Formann, Steffi and Hahn, Alena and Janke, Leandro and Stinner, Walter and Sträuber, Heike and Logroño, Washington and Nikolausz, Marcell (2020). Beyond Sugar and Ethanol Production: Value Generation Opportunities Through Sugarcane Residues. Frontiers in Energy Research. 8 , 579577
[Article Review/Survey]

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Abstract

Sugarcane is the most produced agricultural commodity in tropical and subtropical regions, where it is primarily used for the production of sugar and ethanol. The latter is mostly used to produce alcoholic beverages as well as low carbon biofuel. Despite well-established production chains, their respective residues and by-products present unexploited potentials for further product portfolio diversification. These fully or partially untapped product streams are a) sugarcane trash or straw that usually remain on the fields after mechanized harvest, b) ashes derived from bagasse combustion in cogeneration plants, c) filter cake from clarification of the sugarcane juice, d) vinasse which is the liquid residue after distillation of ethanol, and e) biogenic CO2 emitted during bagasse combustion and ethanol fermentation. The development of innovative cascading processes using these residual biomass fractions could significantly reduce final disposal costs, improve the energy output, reduce greenhouse gas emissions, and extend the product portfolio of sugarcane mills. This study reviews not only the state-of-the-art sugarcane biorefinery concepts, but also proposes innovative ways for further valorizing residual biomass. This study is therefore structured in four main areas, namely: i) Cascading use of organic residues for carboxylates, bioplastic, and bio-fertilizer production, ii) recovery of unexploited organic residues via anaerobic digestion to produce biogas, iii) valorization of biogenic CO2 sources, and iv) recovery of silicon from bagasse ashes.

Authors/Creators:Formann, Steffi and Hahn, Alena and Janke, Leandro and Stinner, Walter and Sträuber, Heike and Logroño, Washington and Nikolausz, Marcell
Title:Beyond Sugar and Ethanol Production: Value Generation Opportunities Through Sugarcane Residues
Series Name/Journal:Frontiers in Energy Research
Year of publishing :2020
Volume:8
Article number:579577
Number of Pages:21
ISSN:2296-598X
Language:English
Publication Type:Article Review/Survey
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 207 Environmental Engineering > Energy Systems
Keywords:anaerobic digestion, anaerobic fermentation, biogenic silicon, carbon capture and utilization (CCU), carboxylates, methane production, sugarcane, power-to-x
URN:NBN:urn:nbn:se:slu:epsilon-p-108946
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108946
Additional ID:
Type of IDID
DOI10.3389/fenrg.2020.579577
ID Code:19088
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:02 Dec 2020 14:03
Metadata Last Modified:15 Jan 2021 19:21

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