Chen Xikai, Zheng Xietian, Pei Yanbo, Chen Weikun, Lin Qiang, Huang Jingang, Hou Pingzhi, Tang Junhong, Han Wei
College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
Bioresour Technol. 2022 Nov;363:127882. doi: 10.1016/j.biortech.2022.127882. Epub 2022 Sep 5.
In this study, fuel ethanol production from food waste using enzymatic hydrolysis and fermentation was evaluated from techno-economic viewpoint. The plant was designed with a capacity of 10 t/d food waste and a lifetime of 15-year. The total capital cost, annual operation cost and annual net profits of the plant were US$ 367,552, US$ 155,959 and US$ 74,995.57, respectively. The plant was economically viable as long as the internal rate of return remained below 29.8%. The shortest payback time was 5 years with discount rate of 5%. The price of fuel ethanol and food waste treatment fee were the most important variables for the economic performance of the plant by sensitivity analysis. This work could provide the basic knowledge for techno-economic analysis of food waste treatment and promote the industrial production of fuel ethanol.
在本研究中，从技术经济角度评估了利用酶水解和发酵从食物垃圾中生产燃料乙醇的情况。该工厂设计处理能力为每天10吨食物垃圾，使用寿命为15年。该工厂的总资本成本、年运营成本和年净利润分别为367,552美元、155,959美元和74,995.57美元。只要内部收益率保持在29.8%以下，该工厂在经济上就是可行的。在贴现率为5%的情况下，最短回收期为5年。通过敏感性分析可知，燃料乙醇价格和食物垃圾处理费是影响该工厂经济性能的最重要变量。这项工作可为食物垃圾处理的技术经济分析提供基础知识，并推动燃料乙醇的工业化生产。
