Conventional and microwave pyrolysis of a macroalgae waste from the Agar-Agar industry. Prospects for bio-fuel production
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- 作者：N. Ferrera-Lorenzo ; E. Fuente ; J.M. Berm煤dez ; I. Su谩rez-Ruiz ; B. Ruiz
- 关键词：Algae meal ; Microwave furnace ; Conventional electrical furnace ; Bio-fuels ; Pyrolysis
- 刊名：Bioresource Technology
- 出版年：January, 2014
- 年：2014
- 卷：151
- 期：Complete
- 页码：199-206
- 全文大小：664 K
文摘
A comparative study of the pyrolysis of a macroalgae industrial solid waste (algae meal) in an electrical conventional furnace and in a microwave furnace has been carried out. It was found that the chars obtained from both pyrolyses are similar and show good properties for performing as a solid bio-fuel and as a precursor of activated carbon. Bio-oils from conventional pyrolysis have a greater number of phenolic, pyrrole and alkane compounds whereas benzene and pyridine compounds are more predominant in microwave pyrolysis with a major presence of light compounds. The bio-gas fraction from microwave pyrolysis presents a much higher syngas content (H2 + CO), and a lower CO2 and CH4 proportion than that obtained by conventional pyrolysis. Yields are similar for both treatments with a slightly higher gas yield in the case of microwave pyrolysis due to the fact that microwave heating favors heterogeneous reactions between the gases and the char.