生物质直燃发电系统的生命周期评价

Life cycle assessment of biomass direct combustion power generation system

生物质直燃发电系统是规模化利用我国生物质资源的一种重要技术途径。以装机容量为25MW的秸秆直燃发电系统为研究对象,对其进行生命周期评价,以系统、全面地评价它对生态环境的显见和潜在的影响。建立生命周期分析方法学模型和支撑数据库,对系统边界、环境影响指标、决定系统环境性的重要参数进行讨论,并对系统运转的生命周期进行完整地清单分析和效应分析,这对解决诸多环境问题有重要的价值。

Biomass direct combustion power generation system is one of the important technologies for the broad-scale use of biomass resource in China.This paper takes 25 MW,biomass direct combustion power generation system as an example.The obvious and potential impacts of this system on environment have been evaluated by life cycle assessment.Basic database and general methodological model of life cycle analysis have been put forward.The relation between the improvement of the key factors and the reduction of environment impact has been discussed.This is very valuable for solving many environment problems.