Sugarcane as a Bioenergy Source (original) (raw)

Sugarcane Biofuels, 2019

Abstract

Global energy demands are extensively being met through non-renewable resources, which are not only depleting rapidly, but also causing higher greenhouse gas emissions. Therefore, alternative sources of energy are being looked-for, to fulfill the needs of energy as well as to mitigate the effects of climate change. Bioenergy crops are anticipated to be a promising option in this context. Sugarcane is one of the most suitable crops for bioenergy production, attributed to its C4 characteristics which result in yielding huge biomass per unit area. Moreover, tillering and ratooning ability of sugarcane makes it an extremely attractive crop for biofuels and bioenergy engenderment. One ton of sugarcane produces 85–100 kg sugar and 35–45 kg molasses—which can deliver up to 22–25% recovery of ethanol through fermentation. About 80% of the world’s molasses is used for ethanol production through biochemical processing. Presently, first-generation bioethanol is being produced through sugarcane molasses fermentation and distillation; however, bagasse and other plant residues which constitute two thirds of its biomass may also be utilized for biofuel and bioenergy production through biochemical and/or thermochemical conversions. Having great potential for energy production, sugarcane is expected to play significant role in world’s energy matrix in coming years. This chapter presents an overview of introductory aspects of sugarcane crop as an energy source.

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