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Life Cycle Assessment of Polyol Fuel from Corn Stover via Fast Pyrolysis and Upgrading
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-18 00:00:00 , DOI: 10.1021/acssuschemeng.7b04378 Lijun Heng 1, 2 , Huiyan Zhang 1 , Jun Xiao 1 , Rui Xiao 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-18 00:00:00 , DOI: 10.1021/acssuschemeng.7b04378 Lijun Heng 1, 2 , Huiyan Zhang 1 , Jun Xiao 1 , Rui Xiao 1
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The purpose of this study is to evaluate the fossil energy consumption and the greenhouse gas (GHG) emissions of polyol fuel produced via corn stover fast pyrolysis and bio-oil upgrading based on life cycle assessment (LCA). The required material and energy inputs involved in the unit processes of LCA are taken from Aspen Plus simulation models established according to a demonstration plant with annual polyol output of 1000 tonnes. The eBalance software with a Chinese Life Cycle Database (CLCD) is employed to perform this task. The research results show the net fossil energy input (FEI) and the net global warming potential (GWP) of polyol fuel are respectively 0.760 MJ and 0.0444 kgCO2,eq per MJ energy output under the proposed production pathway. Compared to petroleum-based gasoline and diesel, the net FEI of polyol fuel reduces by 42.9% and 42.2% respectively and the net GWP of polyol fuel decreases by 55.1% and 56.9% accordingly. Sensitivity analysis indicates the data uncertainty of the polyol yield and the electricity consumption for bio-oil production has significant impact on the GHG emissions. The polyol fuel is expected to partly replace petroleum-based fuels.
中文翻译：
玉米秸秆多元醇燃料通过快速热解和升级的生命周期评估
这项研究的目的是根据生命周期评估（LCA）评估通过玉米秸秆快速热解和生物油提质生产的多元醇燃料的化石能源消耗和温室气体（GHG）排放。LCA单元过程中涉及的所需材料和能量输入取自Aspen Plus模拟模型，该模型是根据一个年产1000吨多元醇的示范工厂建立的。使用带有中文生命周期数据库（CLCD）的eBalance软件来执行此任务。研究结果表明，多元醇燃料的化石能源净输入量（FEI）和全球变暖净值（GWP）分别为0.760 MJ和0.0444 kgCO 2 eq。拟议生产途径下的每兆焦耳能量输出。与石油基汽油和柴油相比，多元醇燃料的净FEI分别降低了42.9％和42.2％，而多元醇燃料的净GWP则分别降低了55.1％和56.9％。敏感性分析表明多元醇产量的数据不确定性以及生物油生产的电力消耗对温室气体排放有重大影响。多元醇燃料有望部分替代石油基燃料。
更新日期：2018-01-18
中文翻译：
玉米秸秆多元醇燃料通过快速热解和升级的生命周期评估
这项研究的目的是根据生命周期评估（LCA）评估通过玉米秸秆快速热解和生物油提质生产的多元醇燃料的化石能源消耗和温室气体（GHG）排放。LCA单元过程中涉及的所需材料和能量输入取自Aspen Plus模拟模型，该模型是根据一个年产1000吨多元醇的示范工厂建立的。使用带有中文生命周期数据库（CLCD）的eBalance软件来执行此任务。研究结果表明，多元醇燃料的化石能源净输入量（FEI）和全球变暖净值（GWP）分别为0.760 MJ和0.0444 kgCO 2 eq。拟议生产途径下的每兆焦耳能量输出。与石油基汽油和柴油相比，多元醇燃料的净FEI分别降低了42.9％和42.2％，而多元醇燃料的净GWP则分别降低了55.1％和56.9％。敏感性分析表明多元醇产量的数据不确定性以及生物油生产的电力消耗对温室气体排放有重大影响。多元醇燃料有望部分替代石油基燃料。
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