生物质流态化炭气联产初步研究  

A Preliminary Study of Biochar-gas Cogeneration from Biomass Fluidized Pyrolysis

作　　者：陈红健[1,2] 范晓旭[2] 韩中合[1] 张会亮[1,2] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003 [2]山东省科学院能源研究所,济南250014

出　　处：《农机化研究》2015年第5期242-245,共4页Journal of Agricultural Mechanization Research

基　　金：山东省自然科学基金项目(ZR2011EL042)

摘　　要：生物质流态化炭气联产技术是在流态化反应过程中获得生物炭和燃气,其目标是在保证燃气能够稳定燃烧情况下,尽量提高生物炭的品质和产率。为此,以木屑为原料在流化床实验台上进行了生物质在流化床中的停留时间对生物炭特性和燃气特性影响的研究;并在此基础上借助Aspen Plus过程模拟平台进行了扩展预测模拟计算。结果显示:停留时间对生物炭特性和燃气特性有较大影响。在本实验范围内随着停留时间,增加生物炭产率降低,生物炭中固定碳含量升高,固定碳最高含量为72%时生物炭的产率为14%;燃气中CO、H2的含量也会随停留时间的增加而升高,燃气热值最高可达到4 216k J/(Nm3)。Fluidized biochar-gas cogeneration from biomass is a technology to obtain biochar and gas in the fluidized re-action process .The goal of this technology is to improve the quality and yield of biochar under the premise of stable com -bustion of gas .Sawdust was used as material in this paper to research the effect of residence time on characteristics of bio -char and gas .Simulations were conducted with Aspen plus to make an extended forecasts .The results showed that resi-dence time have a significant influence on characteristics of biochar and gas .With the lengthen of residence time , yield of biochar decreased to 14%while fixed carbon content increased to 72%in this experimental range;content of CO , H2 in gas also increased with the residence time increases , the maximum calorific value of gas could reach 4216kJ/Nm3 .

关 键 词：生物质 炭气联产 停留时间 模拟计算 

分 类 号：TK62[动力工程及工程热物理—生物能]