Comparative Life Cycle Assessment of Ethanol Synthesis from Corn Stover by Direct and Indirect Thermochemical Conversion Processes
Comparative Life Cycle Assessment of Ethanol Synthesis from Corn Stover by Direct and Indirect Thermochemical Conversion Processes
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通过直接和间接热化学转化过程从玉米秸秆合成乙醇的比较生命周期评估
DOI：
10.1021/acs.energyfuels.5b01663
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发表时间：
2015-11
期刊：
影响因子：
5.3
通讯作者：
Wang, Shurong
中科院分区：
文献类型：
--
作者：
Zhu, Lingjun;Guo, Wenwen;Yin, Shi;Wang, Shurong
以玉米秸秆为原料生产燃料乙醇具有良好的应用前景。研究了玉米秸秆直接热化学转化和间接热化学转化合成乙醇的工艺。在确定系统边界后，进行了生命周期评估，以评估这两个过程是否对环境无害。研究发现，直接乙醇合成工艺（直接情况）的能源效率（0.38）低于间接工艺（间接情况）的能源效率（0.41）。酒精得率也有同样的趋势。在直接情况和间接情况下的醇产率分别为23和30重量%。并对两种工艺的全球升温潜能值和酸潜势等环境影响进行了比较和讨论。最后给出了两种乙醇合成工艺的环境影响值分布。关于环境影响，间接案例是...
Using corn stover as a raw material to produce fuel ethanol has good application prospects. The processes of ethanol synthesis from corn stover using direct and indirect thermochemical conversion methods have been developed. After the system boundaries were determined, a life cycle assessment was conducted to evaluate whether the two processes would be environmentally friendly. It was found that the energy efficiency of direct ethanol synthesis process (direct case) was lower (0.38) than that found for the indirect process (indirect case), which was 0.41. The same tendency was found with the alcohol yield. The alcohol yields in the direct case and indirect case were 23 and 30 wt %, respectively. Then, the environmental impacts including global warming potential and acid potential of the two processes were compared and discussed. Finally, the distribution of the environmental impact values for the two ethanol synthesis processes was presented. With regard to the environmental impact, the indirect case was ...
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影响因子：
9
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
11.1
作者：
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