生物质气化费托合成制航煤生命周期评价

基于生命周期评价（LCA），对生物质气化费托合成制航煤（Bio-Jet Fuel）工艺进行资源-环境性分析.根据副产品水蒸汽的用途研究了供热和发电两种方案，并进行了数据不确定度分析.结果显示：除EP指标外，发电方案的各环境影响指标比供热方案降低了11.7%~40.8%.相比化石航煤，生物质航煤GWP降低52.6%~71.9%，不可再生资源消耗减少84.4%~93.6%.生物质生长阶段采用不同的分配方法，资源消耗潜值差异较小，但GWP、EP环境影响负荷会产生较大差异.且生物质航煤综合性能对原料消耗率敏感性最大，变化幅度为-16.6%~+17.3%.采用不确定度分析方法对评价结果进行数据质量评估，各环境影响类型的不确定度处于5.0%~12.5%.

Life cycle assessment of jet fuel from biomass gasification and Fischer-Tropsch synthesis

The resource-environmental analysis of Jet Fuel from biomass gasification and Fischer-Tropsch synthesis (Bio-Jet Fuel) was carried out. According to the different uses of by-product steam for power generation and heat supply, two cases were studied. And the data uncertainty analysis of evaluation results was also carried out. The results show that except for eutrophication (EP), the other environmental impact indicators of the power generation case are 11.7%~40.8% lower than those of the heat supply case. Compared with petroleum-based Jet fuel, the global warming impact (GWP) and depletion of non-renewable resources of Bio-Jet Fuel are reduced by 52.6%~71.9% and 84.4%~93.6%, respectively. The various distribution methods of biomass growth stage cause little influence on the resource consumption potential, but bring about some greater difference in GWP、EP. Moreover, the integrated performance of Bio-Jet Fuel is more sensitive to biomass feedstock consumption and its range of variation is -16.6%~+17.3%. The results of uncertainty analysis show that the uncertainties of environmental impact are between 5.0% and 12.5%.