玉米燃料乙醇生命周期系统分析

Life Cycle System Analysis of Corn Fuel Ethanol

在一定程度上玉米燃料乙醇是作为化石燃料的代替品,其生命周期系统是测试其可持续的主要标准。在基于生命周期的分析原理当中,相关研究部门建立起了玉米燃料乙醇中净能量分析方式,以我国玉米燃料乙醇的实际生产条件为例,计算出整个玉米燃料乙醇的生命周期能量效率并对其进行详细的分析。当前,我国玉米燃料乙醇生命周期系统需要通过化石能以及太阳能驱动,并不可避免地伴有二氧化碳等其他污染物的排放。所以分析玉米燃料乙醇的能量平衡,可再生性以及温室气体的排放等问题对于当前生物能源生产的系统建立及其可持续运行是有着极为重要的现实意义。

To a certain extent,corn fuel ethanol is a substitute for fossil fuels,and its life cycle system is a major criterion for testing its sustainability.In the principle of life cycle-based analysis,the relevant research departments have established a net energy analysis method for corn fuel ethanol.Taking the actual production conditions of corn fuel ethanol in China as an example,and calculating the life cycle energy efficiency of the whole corn fuel ethanol and It performs a detailed analysis.At present,China’s corn fuel ethanol life cycle system needs to be driven together by fossil energy and solar energy,and is inevitably accompanied by other pollutants such as carbon dioxide.Therefore,the analysis of the energy balance,renewability and greenhouse gas emissions of corn fuel ethanol is of great practical significance for the establishment of the current bioenergy production system and its sustainable operation.