摘要
基于能值分析理论和考虑环境投入,从可持续发展的角度对玉米秸秆热解加氢制精制油过程的2个方案进行综合评价,获得生产效率、环境影响、可持续性方面的能值指标.方案1中的氢气来自初级生物油水相重整,方案2中氢气来自外部市场购买.结果表明:2个方案能值转换率分别为5.00×105sej/J和1.37×105sej/J,从能值转换率的角度分析,与方案1、玉米燃料乙醇及生物柴油相比,方案2生产等量燃料消耗的太阳能最少,更有优势;2个方案的能值产出率均为1.07,生产效率较低;环境负载率分别是1.02和1.05,对环境影响较小;可持续发展系数分别是1.05和1.02,可持续性属于中等水平.
Considering the environmental inputs,two schemes of corn stover fast pyrolysis and hy-drogenation are evaluated by means of emergy accounting methodology from the viewpoint of sus-tainable development.The first scenario employs bio-oil reforming to generate requisite hydrogen for bio-oil upgrading,and the second scenario uses merchant hydrogen for bio-oil upgrading.The emer-gy indices of two schemes are respectively as follows：the transformities of the first scenario and the second scenario are 5.00 ×10^5 and 1.37 ×10^5 sej/J,respectively;the environment load ratio are 1 .02 and 1 .05;the emergy sustainable indices are 1 .05 and 1 .02;the emergy yield ratios are 1 .07 and 1 .07 .The second scheme has more advantages than the first scheme,corn-based fuel ethanol and biodiesel from the emergy analysis for its lower solar energy to produce the equal amount of fu-el.Both scenarios have little impact on the environment,their production efficiency are low and the sustainability of the production process belongs to the medium level.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第6期1200-1205,共6页
Journal of Southeast University：Natural Science Edition
基金
国家重点基础研究发展计划(973计划)资助项目(2013CB228106)
关键词
能值分析
生物质热解
车用燃料
可持续性
emergy analysis
biomass pyrolysis
vehicle fuel
sustainability
