摘要
为了探索不同微波功率以及不同添加剂(活性炭和热解残渣)对微藻(小球藻)微波热解过程的影响,利用微波反应器对微波热解小球藻进行实验研究。结果表明,微波功率越大,物料升温越快,热解终温也越大,物料热解越完全,活性炭的催化效果优于热解残渣的。为了探索热解残渣对小球藻微波热解具有催化作用的原因,比较分析了热解残渣和活性炭的比表面积及孔结构参数,并利用等离子体发射光谱仪(Accuris ICPES)测量了热解残渣的金属元素含量,结果表明,热解残渣的孔结构参数值比活性炭的小很多,热解残渣对小球藻微波热解具有催化作用的主要原因不是因为热解残渣具有较大的比表面积和较好的微观孔隙结构,而金属元素(主要是钾、镁和钙,还含有少量的钠、铁和锌)含量较高可能是热解残渣具有良好催化性的主要原因。
In order to investigate the effects of different microwave power and different kinds of catalysts(activated carbon and pyrolytic residue)on microwave pyrolysis processes of microalgae(Chlorella vulgaris),microwave pyrolysis experiment is carried out with microwave reactor.The results indicate that the heating velocity,final temperature and the transformation rate of the material are raised with the increase of microwave power,and the catalysis effect of the activated carbon is better than that of the pyrolysis residue.In order to investigate the reason for catalytic action of pyrolysis residue to the microwave pyrolysis of Chlorella vulgaris,the specific surface area and pore structure parameters of pyrolysis residue and activated carbon arecomparedwhile the content of metal elements in pyrolysis residue is analyzed by Accuris ICPES.The results show that the pore structure parameter values of the pyrolysis residue is much smaller than that of the activated carbon.The main reason for catalysis of pyrolysis residue to Chlorella vulgaris is not caused by the larger specific surface area or the better micro-pore structure of the pyrolysis residue,but the high metal element content(potassium,magnesium and calcium mainly,sodium,ferrum and zinc in small amount).
作者
陈春香
程正
卢子广
龙军
刘海力
CHEN Chun-xiang;CHENG Zheng;LU Zi-guang;LONG Jun;LIU Hai-li(College of Electrical Engineering,Guangxi University,Nanning 530004,China;Guangxi Key Laboratory of Power System Optimization and Energy Technology,Nanning 530004,China;School of Energy and Electrical Engineering,Hunan University of Humanities,Science and Technology,Changsha 41000,China)
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2018年第2期554-560,共7页
Journal of Guangxi University（Natural Science Edition）
基金
广西自然科学基金项目(青年基金)(2014GXNSFBA118252)
广西科学研究与技术开发计划项目(桂科攻1598008-17)
广西壮族自治区教育厅高校科研项目(重点项目)(ZD2014008)
湖南省自然科学基金(2016JJ2068)
可再生能源电力技术湖南省重点实验室开放基金(2016ZNDL002)
关键词
微波热解
微藻
活性炭
热解残渣
升温速率
催化作用
microwave pyrolysis
microalgae
activated carbon
pyrolysis residue
temperature ris-ing rate
catalysis
