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Techno-Economic Analysis for Bioethanol Plant with Multi Lignocellulosic Feedstocks

1Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand

2Division of Sustainable and Resource Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand

3Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, Thailand

4 Department of Chemical Engineering, Faculty of Engineering, Mahidol University Salaya, Nakorn Pathom 73170, Thailand

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Received: 17 Apr 2020; Revised: 26 May 2020; Accepted: 30 May 2020; Available online: 6 Jun 2020; Published: 15 Oct 2020.
Editor(s): H Hadiyanto
Open Access Copyright (c) 2020 The authors. Published by Centre of Biomass and Renewable Energy (CBIORE)
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Citation Format:
Oil palm empty fruit bunch and trunk are classified as primary lignocellulosic residues from the palm oil industry. They are considered to be promising feedstocks for bioconversion into value-added products such as bioethanol. However,using these lignocellulosic materials to produce bioethanol remains a significant challenge for small and medium enterprises. Hence, techno-economic and sensitivity analyses of bioethanol plant simultaneously treating these materials were performed in this study. The information based on preliminary experimental data in batch operations wasemployed to develop a simulation of an industrial-scale semi-continuous production process. Calculations of mass balance, equipment sizes, and production cost estimation of the production plant of various capacities ranging from 10,000 L/day to 35,000 L/day were summarized. The result based on 20 years of operation indicated that the net present value of theplant of lower capacities was negative. However,thisvalue became positive when the plant operated with a higher capacity, 35,000 L/day.The highest ethanol yield, 294.84 LEtOH/tonfeedstock, was produced when the planttreated only an empty fruit bunch generating 8.94% internal rate of return and US$0.54 production cost per unit.Moreover, the higher oil palm trunk ratio in the feedstock, the lower ethanol yield contributing to the higher production cost per unit.

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Keywords: Bioethanol; Lignocellulosic; Techno-economic; Empty fruit bunch; Oil palm trunk
Funding: Thailand-China project, National Research Council of Thailand, the National Science and Technology Development Agency (NSTDA), Kasetsart University Research and Development Institute (KURDI)

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