4.7 Article

Techno-economic assessment of bioenergy and biofuel production in integrated sugarcane biorefinery: Identification of technological bottlenecks and economic feasibility of dilute acid pretreatment

Journal

ENERGY
Volume 199, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2020.117422

Keywords

Biofuel; Sugarcane; Acid pretreatment; Hemicellulosic liquor; Economic analysis; Production costs

Funding

  1. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq-Brazil)
  2. Sao Paulo Research Foundation (FAPESP) [2014/06923-6, 2015/10756-0]
  3. Instituto Federal de Educacao, Ciencia e Tecnologia de Rondonia
  4. Fundacao Rondonia de Amparo ao Desenvolvimento das Acoes Cientificas e Tecnologicas e a Pesquisa do Estado de Rondonia (FAPERO) [008/2018]
  5. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior Brasil (CAPES) [001]

Ask authors/readers for more resources

Techno-economic analysis of first- and second-generation (1G2G) integrated sugarcane biorefinery producing ethanol and electricity was performed, exploring the virtues and limitations of dilute acid pretreatment. Process variables such as solid content in the pretreatment reactor, enzymatic hydrolysis time, and the possibility of pentose fermentation were pondered using computational tools and simulation platforms to assess the impacts of the variables overall production chain. Previously published data reporting optimal pretreatment conditions applied to a leading sugarcane hybrid were considered in the simulation studies. Better economic returns were obtained using the lowest solids content in the pretreatment reactor, the shortest incubation time in the enzymatic hydrolysis step, as well as the use of the pentose stream to produce additional ethanol. Process profitability was mostly affected by sugarcane cost, followed by capital costs associated with investment, and input chemicals costs. Finally, this study indicates that the economic benefits do not only depend on achievement of high final product yields, but also on a set of industrial factors, demonstrating the suitability of process simulation to point out industrial bottlenecks deserving future research. (C) 2020 Elsevier Ltd. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available