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Life-Cycle Assessment (LCA) of Different Pretreatment and Product Separation Technologies for Butanol Bioprocessing from Oil Palm Frond
Article

Techno-Economic Analysis (TEA) of Different Pretreatment and Product Separation Technologies for Cellulosic Butanol Production from Oil Palm Frond

1
Department of Agricultural and Biosystems Engineering, Iowa State University, Elings Hall, Ames, IA 50011, USA
2
Faculty of Industrial Sciences and Technology, University Malaysia Pahang, Lebuhraya Tun Razak, Kuantan 26300, Malaysia
*
Author to whom correspondence should be addressed.
Energies 2020, 13(1), 181; https://doi.org/10.3390/en13010181
Received: 27 November 2019 / Revised: 20 December 2019 / Accepted: 27 December 2019 / Published: 1 January 2020
(This article belongs to the Special Issue Sustainability of Biorenewable Systems and Processes)
Among the driving factors for the high production cost of cellulosic butanol lies the pretreatment and product separation sections, which often demand high amounts of energy, chemicals, and water. In this study, techno-economic analysis of several pretreatments and product separation technologies were conducted and compared. Among the pretreatment technologies evaluated, low-moisture anhydrous ammonia (LMAA) pretreatment has shown notable potential with a pretreatment cost of $0.16/L butanol. Other pretreatment technologies evaluated were autohydrolysis, soaking in aqueous ammonia (SAA), and soaking in sodium hydroxide solution (NaOH) with pretreatment costs of $1.98/L, $3.77/L, and $0.61/L, respectively. Evaluation of different product separation technologies for acetone-butanol-ethanol (ABE) fermentation process have shown that in situ stripping has the lowest separation cost, which was $0.21/L. Other product separation technologies tested were dual extraction, adsorption, and membrane pervaporation, with the separation costs of $0.38/L, $2.25/L, and $0.45/L, respectively. The evaluations have shown that production of cellulosic butanol using combined LMAA pretreatment and in situ stripping or with dual extraction recorded among the lowest butanol production cost. However, dual extraction model has a total solvent productivity of approximately 6% higher than those of in situ stripping model. View Full-Text
Keywords: ABE fermentation; LMAA pretreatment; techno-economic analysis; cellulosic butanol ABE fermentation; LMAA pretreatment; techno-economic analysis; cellulosic butanol
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MDPI and ACS Style

Mahmud, N.; Rosentrater, K.A. Techno-Economic Analysis (TEA) of Different Pretreatment and Product Separation Technologies for Cellulosic Butanol Production from Oil Palm Frond. Energies 2020, 13, 181. https://doi.org/10.3390/en13010181

AMA Style

Mahmud N, Rosentrater KA. Techno-Economic Analysis (TEA) of Different Pretreatment and Product Separation Technologies for Cellulosic Butanol Production from Oil Palm Frond. Energies. 2020; 13(1):181. https://doi.org/10.3390/en13010181

Chicago/Turabian Style

Mahmud, Nazira, and Kurt A. Rosentrater 2020. "Techno-Economic Analysis (TEA) of Different Pretreatment and Product Separation Technologies for Cellulosic Butanol Production from Oil Palm Frond" Energies 13, no. 1: 181. https://doi.org/10.3390/en13010181

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