木质纤维素和藻类生物质热解的热重和固定床反应器的比较研究。
Comparative study on pyrolysis of lignocellulosic and algal biomass using a thermogravimetric and a fixed-bed reactor.
机构信息
Key Laboratory of Advanced Coal and Coking Technology of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, People's Republic of China.
Key Laboratory of Advanced Coal and Coking Technology of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, People's Republic of China; Chemical Engineering, University of Newcastle, Callaghan, NSW 2308, Australia.
出版信息
Bioresour Technol. 2015 Jan;175:333-41. doi: 10.1016/j.biortech.2014.10.108. Epub 2014 Oct 28.
Pyrolysis characteristics of four algal and lignocellulosic biomass samples were studied by using a thermogravimetric analyzer (TGA) and a fixed-bed reactor. The effects of pyrolysis temperature and biomass type on the yield and composition of pyrolysis products were investigated. The average activation energy for pyrolysis of biomass samples by FWO and KAS methods in this study were in the range of 211.09-291.19kJ/mol. CO2 was the main gas component in the early stage of pyrolysis, whereas H2 and CH4 concentrations increased with increasing pyrolysis temperature. Bio-oil from Chlorellavulgaris showed higher content of nitrogen containing compounds compared to lignocellulosic biomass. The concentration of aromatic organic compounds such as phenol and its derivatives were increased with increasing pyrolysis temperature up to 700°C. FTIR analysis results showed that with increasing pyrolysis temperature, the concentration of OH, CH, CO, OCH3, and CO functional groups in char decreased sharply.
采用热重分析仪（TGA）和固定床反应器研究了四种藻类和木质纤维素生物质样品的热解特性。考察了热解温度和生物质类型对热解产物产率和组成的影响。本研究中，用 FWO 和 KAS 方法计算生物质样品热解的平均活化能在 211.09-291.19kJ/mol 范围内。CO2 是热解初期的主要气体成分，而 H2 和 CH4 浓度随着热解温度的升高而增加。与木质纤维素生物质相比，小球藻生物油中含氮化合物的含量较高。随着热解温度的升高，苯酚及其衍生物等芳香族有机化合物的浓度增加到 700°C。FTIR 分析结果表明，随着热解温度的升高，焦中 OH、CH、CO、OCH3 和 CO 官能团的浓度急剧下降。
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