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首页> 外文期刊>Clean technologies and environmental policy >Perspectives for the production of bioethanol from wood and straw in Austria: technical, economic, and ecological aspects
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Perspectives for the production of bioethanol from wood and straw in Austria: technical, economic, and ecological aspects

机译：奥地利从木材和稻草生产生物乙醇的前景：技术，经济和生态方面

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摘要

Bioethanol produced from lignocellulosic resources is a promising candidate for the replacement of fossil fuels. In this study, we aim to determine the perspectives to produce lignocellulosic ethanol in Austria. Technical, environmental and economic aspects are being considered. Thirteen biotechnological production concepts using the raw materials straw and softwood were established and simulated with the steady state flowsheeting software IPSEpro. Bioethanol production cost and greenhouse gas (GHG) emissions for each system were calculated based on mass and energy balances obtained from process simulation. The emission of GHGs along the entire bioethanol process chain ("from well to wheel") are compared to two reference systems producing the same amounts of by-products. In all concepts, process heat and considerable amounts of the by-products electricity, heat, pellets, C5 molasses, or biomethane could be obtained from residual biomass. Compared to a reference system driven by fossil energy, GHG emissions can be reduced by up to 76%. The production cost of ethanol was found to between 0.66 6 and 0.94 € per liter of gasoline equivalent. The type and amount of by-product influence technical, economic, and environmental performance significantly. Converting all straw and softwood available in Austria to ethanol would result in an annual production of 340 kt.
机译：由木质纤维素资源生产的生物乙醇是替代化石燃料的有前途的候选者。在这项研究中，我们旨在确定在奥地利生产木质纤维素乙醇的前景。正在考虑技术，环境和经济方面。建立了使用秸秆和软木原料的十三种生物技术生产概念，并使用稳态流程图软件IPSEpro进行了模拟。每个系统的生物乙醇生产成本和温室气体（GHG）排放是根据过程模拟获得的质量和能量平衡进行计算的。将整个生物乙醇工艺链（“从井到轮”）中温室气体的排放与产生相同量副产物的两个参考系统进行比较。在所有概念中，都可以从残留的生物质中获得过程热和大量的副产品电，热，颗粒，C5糖蜜或生物甲烷。与由化石能源驱动的参考系统相比，GHG排放最多可减少76％。发现每升汽油当量的乙醇生产成本在0.66 6至0.94欧元之间。副产品的类型和数量会严重影响技术，经济和环境绩效。将奥地利可用的所有秸秆和软木转换成乙醇，将产生340 kt的年产量。

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