Comparative analysis of key technologies for cellulosic ethanol production from Brazilian sugarcane bagasse at a commercial scale

Autor(es)

Chandel, Anuj K. ^[1] ; Albarelli, Juliana Q. ^[2] ; Santos, Diego T. ^[2] ; Chundawat, Shishir P. S. ^[3] ; Puri, Munish ^[4] ; Meireles, Maria Angela A. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Engn Sch Lorena EEL, Dept Biotechnol, BR-12602810 Lorena - Brazil

^[2] Univ Estadual Campinas, Sch Food Engn, UNICAMP, Campinas, SP - Brazil

^[3] Rutgers State Univ, Sch Engn, Dept Chem & Biochem Engn, Piscataway, NJ - USA

^[4] Flinders Univ S Australia, Coll Med & Publ Hlth, Ctr Marine Bioprod Dev, Adelaide, SA - Australia

• Tipo de documento: Artigo Científico
• Fonte: BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR; v. 13, n. 4, p. 994-1014, JUL 2019.
• Citações Web of Science: 2

Resumo

Biorefineries can upgrade waste lignocellulosic biomass (LB) into soluble (C-5 and C-6) 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 similar to 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. (c) 2019 Society of Chemical Industry and John Wiley \& Sons, Ltd (AU)

• Processo FAPESP: 13/18114-2 - Aproveitamento integral de biomassas utilizando fluidos sub/supercríticos: avaliação de cenários tecnológicos sob ópticas ambiental, energética e econômica
• Beneficiário: Juliana Queiroz Albarelli
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/06954-1 - Desenvolvimento de uma biorrefinaria sub/supercrítica integrada, energeticamente autossuficiente e economicamente viável com a ajuda de modelagem e simulação computacional
• Beneficiário: Juliana Queiroz Albarelli
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado