孙小飞;陈智伟;李宇轩;马红亮;高人;尹云锋;

• 1:福建师范大学湿润亚热带山地生态国家重点实验室培育基地福建师范大学地理科学学院

摘要(Abstract)：

以水稻秸秆为原材料,研究不同热解温度(350,450,550,650,750℃)对生物质炭的产率、pH值和8种元素含量以及挥发特性的影响.结果表明:当热解温度由350℃上升至750℃时,生物质炭pH值介于9. 54～10. 90之间,并呈现先升高再下降的趋势;产率由43. 7%下降至31. 2%;全碳(TC)和全氮(TN)的含量分别从433. 72 g·kg-1和12. 53 g·kg-1下降至355. 37 g·kg-1和4. 34 g·kg-1,而全磷(TP)、全钾(TK)、铜(Cu2+)和钼(Mo2+)的含量则表现为升高,锌(Zn2+)和锰(Mn2+)含量与pH值变化趋势相近.在热解过程中TC和TN挥发最多,而TK和Cu2+则表现为富集.回归分析发现,热解温度与生物质炭pH、产率和元素含量(Zn2+除外)均呈极显著线性关系(P <0. 01).

关键词(KeyWords)： 生物质炭;水稻秸秆;热解温度;元素含量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(31470628);; 教育部科学技术研究资助项目(213019A)

作者(Authors): 孙小飞;陈智伟;李宇轩;马红亮;高人;尹云锋;

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