Enhancing sustainable ethanol fuel production from cassava in Vietnam

IF 5.8 Q2 ENERGY & FUELS Energy and climate change Pub Date : 2024-04-30 DOI:10.1016/j.egycc.2024.100136

Truong Xuan Do, Tuan Anh Vu

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Abstract

This study focused on developing a comprehensive model to perform techno-economic analysis and calculate greenhouse gas emissions and net energy balance of cassava-based ethanol production in Vietnam. Four steps were involved in this study: (1) collecting data on the cassava-based ethanol conversion pathway, (2) modeling an ethanol production plant, (3) calculating greenhouse gas emissions and net energy balance, and (4) evaluating economic feasibility. The total capital investment and production cost per liter of ethanol are 0.6 $/l/yr and 0.4 $/l, respectively. The fossil energy consumption and net energy ratio during cultivation, transportation, production, and use of ethanol are 12.4 MJ/l and 1.70, respectively. The total greenhouse gas emissions of cassava-based ethanol production are 1252 gCO₂eq/l or 59.1 g_CO2eq/MJ, which equals 63 % of greenhouse gas emissions from gasoline. This finding confirms that cassava-based ethanol can be an alternative fuel based on economic feasibility and environmental benefit by reducing greenhouse gas emissions in Vietnam.

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加强越南木薯乙醇燃料的可持续生产

本研究的重点是开发一个综合模型，以进行技术经济分析，并计算越南木薯乙醇生产的温室气体排放量和净能量平衡。本研究包括四个步骤：（1）收集木薯乙醇转化途径的数据；（2）建立乙醇生产厂模型；（3）计算温室气体排放量和净能量平衡；（4）评估经济可行性。总资本投资和每升乙醇的生产成本分别为 0.6 美元/升/年和 0.4 美元/升。乙醇在种植、运输、生产和使用过程中的化石能源消耗和净能源比率分别为 12.4 兆焦耳/升和 1.70。木薯乙醇生产的温室气体排放总量为 1252 gCO2eq/l，即 59.1 gCO2eq/MJ，相当于汽油温室气体排放量的 63%。这一结果证实，基于经济可行性和环境效益，木薯乙醇可以成为越南减少温室气体排放的替代燃料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy and climate change Global and Planetary Change, Renewable Energy, Sustainability and the Environment, Management, Monitoring, Policy and Law

CiteScore

7.90

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0.00%

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