固体氧化物燃料电池高效利用生物质气前景分析

生物质气具有来源广、总量大的特点，其规模化利用可有效缓解我国未来能源供需紧张的矛盾，但实现规模化利用的前提是开发出适合其分散、热值低、组成变化等特点的利用技术. 本工作分析了我国生物质气的资源情况，阐述了生物质气利用技术的现状与未来发展趋势，并对固体氧化物燃料电池(SOFC)转换生物质气的技术与经济可行性进行了分析. 结果表明，SOFC能够很好地适应生物质气分散、热值低、组成变化的特点，与传统发电方式相比，SOFC发电可望具有更好的经济性. SOFC规模化利用生物质气将可缓解我国未来电力供需紧张矛盾，具有很好的环境及社会效益，发展前景广阔.

Prospects of High-efficient Utilization of Biogas through Solid Oxied Fuel Cells

Biogas is readily available from various sources in large quantity.Large-scale utilization of biogas,which could effectively alleviate the energy shortage of China in the future,will be mainly dependent on the development of new technologies that could well be suitable to the characteristics of biogas,e.g.small scale,low net caloric value,frequent change of composition,etc.In the present paper, the status quo of biogas resources was investigated,and current status and future trends of biogas utilization were analyzed.Special focuses were put on analysis of technological and economic feasibility of biogas power generation via solid oxide fuel cells(SOFCs).It is demonstrated that SOFCs are highly adaptable to the characteristics of low net caloric value and frequent composition change of biogas.And,electrical generation through SOFCs is economically much superior as compared with conventional power generation techniques.Consequently,large-scale utilization of biogas via SOFCs will bring great economic,social and environmental benefits.