TY - JOUR
T1 - Comparative analysis of key technologies for cellulosic ethanol production from Brazilian sugarcane bagasse at a commercial scale
AU - Chandel, Anuj Kumar
AU - Albarelli, Juliana Queiroz
AU - Santos, Diego T.
AU - Chundawat, Shishir Ps.
AU - Puri, Munish
AU - Meireles, Maria Angela A.
PY - 2019/3/26
Y1 - 2019/3/26
N2 - Biorefineries can upgrade waste lignocellulosic biomass (LB) into soluble (C5 and C6) sugars that can be fermented into second-generation (2G) ethanol-based biofuels and a range of valuable byproducts derived from lignin. Research advances made in various laboratories worldwide have not been easy to translate into large-scale operations. Here, we performed a simple economic analysis of cellulosic ethanol production from a stand-alone 100ton dry sugarcane bagasse per day process, from a Brazilian market perspective, based on current state-of-the-art biorefinery process technologies. Economic analysis reveals that the cost of manufacturing (COM) of 2G ethanol in an annexed Brazilian facility is close to USD 1.33 L−1. Fixed and variable costs contributed 57% and 24% in COM of 2G ethanol with a high payback period of ~31 years and a negative net present value (NPV). Further cost reduction can be realized by continuous R&D efforts aiming for innovation in new processing paradigms for cellulosic biorefineries. The key market players (Poet-DSM, DuPont, Abengoa, Beta Renewables, Raizen, Granbio, Praj, etc.) and other new emerging players (Global Yeast, Taurus Energy, Leaf, Mascoma-Lallemand) working on ethanologen development, and cellulase producers (Novozyme, Metgen), should also develop partnerships / joint ventures to establish a sustainable business model to develop cost-competitive 2G ethanol production from bagasse in Brazil. This paper presents additional commentary and analysis with pertinent information about the commercialization of integrated 2G ethanol biorefineries processing sugarcane bagasse, from a Brazilian perspective.
AB - Biorefineries can upgrade waste lignocellulosic biomass (LB) into soluble (C5 and C6) sugars that can be fermented into second-generation (2G) ethanol-based biofuels and a range of valuable byproducts derived from lignin. Research advances made in various laboratories worldwide have not been easy to translate into large-scale operations. Here, we performed a simple economic analysis of cellulosic ethanol production from a stand-alone 100ton dry sugarcane bagasse per day process, from a Brazilian market perspective, based on current state-of-the-art biorefinery process technologies. Economic analysis reveals that the cost of manufacturing (COM) of 2G ethanol in an annexed Brazilian facility is close to USD 1.33 L−1. Fixed and variable costs contributed 57% and 24% in COM of 2G ethanol with a high payback period of ~31 years and a negative net present value (NPV). Further cost reduction can be realized by continuous R&D efforts aiming for innovation in new processing paradigms for cellulosic biorefineries. The key market players (Poet-DSM, DuPont, Abengoa, Beta Renewables, Raizen, Granbio, Praj, etc.) and other new emerging players (Global Yeast, Taurus Energy, Leaf, Mascoma-Lallemand) working on ethanologen development, and cellulase producers (Novozyme, Metgen), should also develop partnerships / joint ventures to establish a sustainable business model to develop cost-competitive 2G ethanol production from bagasse in Brazil. This paper presents additional commentary and analysis with pertinent information about the commercialization of integrated 2G ethanol biorefineries processing sugarcane bagasse, from a Brazilian perspective.
KW - biorefinery
KW - cellulosic ethanol
KW - commercialization
KW - economic analysis
KW - enzymatic hydrolysis
KW - pretreatment
KW - scale up
UR - http://www.scopus.com/inward/record.url?scp=85063565264&partnerID=8YFLogxK
U2 - 10.1002/bbb.1990
DO - 10.1002/bbb.1990
M3 - Article
SN - 1932-104X
VL - 13
SP - 994
EP - 1014
JO - Biofuels, Bioproducts and Biorefining
JF - Biofuels, Bioproducts and Biorefining
IS - 4
ER -
