环境工程学报2017，Vol.11Issue(6)：3726-3730,5.DOI:10.12030/j.cjee.201603001
不同温度下制备花生壳生物炭的结构性质差异
Difference characteristics of biochar derived from peanut shell under different temperatures
摘要
Abstract
Pyrolysis temperature is one key factor affecting the properties of biochar.Peanut shells were collected as raw material and converted into biochar at a series of temperatures from 200 to 700 ℃.The characteristics of the biochar were also analyzed and compared in order to investigate the nature of the biochar and changes with pyrolysis temperature.The results showed that the yield of biochar decreased with increasing pyrolysis temperature,whereas the ash and pH increased.Moreover,the carbon content increased with increasing pyrolysis temperature but the hydrogen content and the H/C decreased.The alkyl groups gradually disappeared while more aromatization was shown by new aromatic compounds with increasing pyrolysis temperature,based on Fourier Transform Infrared Spectroscopy analysis.The carbon loss from biochar formed at 500 ℃ by K2Cr2O7 and KMnO4 oxidation,were 18.6％ and 1.70％,respectively,which were less than for the biochar formed at other pyrolysis temperatures.With the increase of temperature,the calcium oxalate in biochar decomposed and disappeared,and calcite formed,based on X-ray diffraction analysis.关键词
生物炭/热解温度/元素组成/稳定性Key words
biochar/pyrolysis temperature/element composition/stability分类
资源环境引用本文复制引用
李飞跃,陶进国,汪建飞,李孝良..不同温度下制备花生壳生物炭的结构性质差异[J].环境工程学报,2017,11(6):3726-3730,5.基金项目
国家自然科学基金资助项目(21607002) （21607002）
安徽省自然科学基金资助项目(1708085QD85) （1708085QD85）
安徽省科技计划项目(1704e1002238,1604a0702011) （1704e1002238,1604a0702011）
安徽高校自然科学研究项目(KJ2015A195) （KJ2015A195）
安徽省高校优秀青年支持计划重点项目(gxyqZD2016213) （gxyqZD2016213）
农业部生物有机肥创制重点实验室开放课题(BOFC2015KB05) （BOFC2015KB05）
安徽科技学院稳定人才项目 （）
地方高校国家级大学生创新创业训练计划项目(201510879007,201610879007) （201510879007,201610879007）
