碳化温度对2种畜禽粪便水热炭热重特性的影响
Effect of Carbonization Temperature on Thermogravimetric Characteristics of Hydrochar of Two Kinds of Livestock Manures
张余婷 1宋成芳 1单胜道 2吴胜春1
作者信息
- 1. 浙江农林大学环境与资源学院,浙江临安311300
- 2. 浙江科技学院浙江省生物质循环利用与生态处理技术重点实验室,浙江杭州310023
- 折叠
摘要
[目的]考察碳化温度对水热炭热解特性的影响.[方法]采用热重法对不同碳化温度下的猪粪和牛粪水热炭的热解特性及反应动力学进行研究.[结果]水热碳化温度达到180℃时,猪粪水热炭热解DTG曲线出现2个峰,特性参数也发生显著变化,且180℃的猪粪水热炭的热解残留率最低.猪粪水热炭热解反应活化能(E)和指前因子(A)均随水热碳化温度的升高而降低,牛粪水热炭热解特性参数和动力学方程中的E和A随碳化温度的增大而增大.[结论]该研究可为猪粪水热炭的制备条件化及应用提供科学依据.
Abstract
To investigate the influence of carbonization temperature on pyrolysis properties of hydrothermal carbon.[Method]The py-rolysis characteristics and reaction kinetics of swine manure and cow dung hydrochar at different carbonization temperatures were studied by ther-mal gravimetric analysis.[ Result] DTG curves of swine manure hydrochar showed two peaks when carbonization temperature was higher than 180 ℃,and the characteristic parameters also changed significantly,the char yield of biochar at 180℃was the lowest.The reaction activation en-ergy and pre-exponential factors of the pyrolysis of swine manure hydrochar were decreased with the increase of the temperature of hydrothermal carbonization,however that of the cow hydrochar were increased with the increase of the carbonization temperature.[Conclusion]The study can provide scientific basis for the preparation and application of pig manure hydrothermal carbon.
关键词
猪粪水热炭/牛粪水热炭/热重特性/热解动力学Key words
Swine manure hydrochar/Cow dung hydrochar/Thermogravimetry characteristic/Pyrolytic kinetics引用本文复制引用
基金项目
国家国际科技合作专项(2014DFE90040)
浙江省重点科技创新团队项目(2013TD12)
国家自然科学基金(41501341)
浙江农林大学学生科研训练项目(2013200050)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据