玉米芯炭质燃料的理化性能及热解过程分析

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杨兴卫1，杨茂立1，安海1，陈海生1,2*，张少朋1，梁志松1

1. 国家能源大规模物理储能技术(毕节)研发中心，贵州毕节 551700
2. 中国科学院工程热物理研究所，北京 100190

收稿日期:2017-10-20修回日期:2017-12-30出版日期:2018-08-22发布日期:2018-08-15
通讯作者:杨兴卫

基金资助:基于毕节地区生物质热解制备炭质燃料的新技术研究;贵州省大规模物理储能工程技术研究中心项目

Analysis on pyrolysis process and physicochemical properties of char fuels deprived from corn cobs

Xingwei YANG1, Maoli YANG1, Hai AN1, Haisheng CHEN1,2*, Shaopeng ZHANG1, Zhisong LIANG1

1. National Energy Large Scale Physical Energy Storage Technologies Research & Development Center (Bijie), Bijie, Guizhou 551700,
China
2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

Received:2017-10-20Revised:2017-12-30Online:2018-08-22Published:2018-08-15
Contact:Yang haixingwei

摘要/Abstract

摘要： 研究了农业生物质废弃物玉米芯热解产物炭质燃料的理化性能与裂解温度的关系及热解机理，用FT-IR, XRD, SEM对玉米芯炭进行表征，分析了化学组成、官能团分布、芳构化程度与温度的关系. 结果表明，随热解温度升高，热解所得焦炭中固定碳和灰分增加，挥发分和水分减小，产率下降，热值先增加后减少，羰基和脂肪族官能团逐渐被破坏，结晶度和芳构化程度不断增强. 500℃时，焦炭热值大于32 MJ/kg, 产率大于24%, 固定碳大于80%, 灰分小于4%，且具有发达的孔洞结构，各项指标接近或优于市售燃料炭；233~533℃下玉米芯挥发最剧烈，具有1.5级反应的特征；热解温度从233~353℃上升至353~533℃时，表观活化能从68.15 kJ/mol降至37.25 kJ/mol.

引用本文

杨兴卫杨茂立安海杨兴卫张少朋梁志松. 玉米芯炭质燃料的理化性能及热解过程分析[J]. 过程工程学报, 2018, 18(4): 851-857.
Xingwei YANG Maoli YANG Hai AN Haisheng CHEN Shaopeng ZHANG Zhisong LIANG. Analysis on pyrolysis process and physicochemical properties of char fuels deprived from corn cobs[J]. Chin. J. Process Eng., 2018, 18(4): 851-857.

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