中国农作物秸秆能源化潜力估算  

Energy potentiality of crop straw resources in China

作　　者：张培栋[1] 杨艳丽[1] 李光全[2] 李新荣[3] 

机构地区：[1]兰州商学院环境与生态经济研究所,甘肃兰州730020 [2]兰州大学经济学院,甘肃兰州730000 [3]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《可再生能源》2007年第6期80-83,共4页Renewable Energy Resources

基　　金：中国博士后科学基金项目(20070410814)

摘　　要：农作物秸秆中含有丰富的有机质，是个巨大的能源库，对其的准确定量是秸秆综合利用的前提条件。文章以2005年中国农作物秸秆资源为例，结合农作物秸秆的能源转化方式，定量估算了中国农作物秸秆能源化的潜力，为秸秆综合利用提供参考资料。结果表明，中国每年约有3．995×10^8t农作物秸秆可作为能源利用，这些秸秆若全部以直接燃烧、锅炉燃烧、压缩成型燃烧、沼气供热、沼气发电、气化供热以及气化发电等不同转化方式加以利用，则其能源化产品可分别替代化石燃料0．291×10^8，0．5×10^8，2．039×10^8，0．815×10^8，0．258×10^8，2．217×10^8和0．5987×10^8t标煤。其中气化供热能源转化效率最高，可达60．37％，其次为压缩成型燃烧，能源转化效率达58．26％。秸秆资源用于气化供热和压缩成型燃烧潜力巨大。The crops straw is the latent and huge energy reservation because it contains abundani organic matter, measuring its quantity accurately is the precondition of crops straw comprehensive utilization. With the crops straw in 2005 as the example, the quantity of crops straw resource and its energy potentiality in 2005 in China was analyzed, which can provide the reference for crops straw comprehensive utilization. The results showed that approximate 399.5 million tons of crops straw are available to be used as energy every year. If all of these straw are used in different transformed way such as direct burning, boiler burning, pellet and briquette burning, methane heating, methane electricity generation, gasification heating, gasification for power and so on, the energy products may replace the fossil fuel of 29.1,50,203.9,81.5,25.8,221.7 and 59.8 million tons respectively. And among them, the highest efficiency is derived from gasification heating application, which energy transformation efficiency is 60.37%, and the next is pellet and briquette burning, which energy transformation efficiency is 50.28%.The crops straw resource has a huge potentiality with the applications of gasification heating and pellet and briquette burning.

关 键 词：农作物秸秆 能源 潜力 

分 类 号：S216.2[农业科学—农业机械化工程]