Fast microwave assisted pyrolysis of biomass using microwave absorbent
Fast microwave assisted pyrolysis of biomass using microwave absorbent
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DOI：
10.1016/j.biortech.2014.01.038
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发表时间：
2014-03-01
影响因子：
11.4
通讯作者：
Ruan, Roger
中科院分区：
文献类型：
--
作者：
Borges, Fernanda Cabral;Du, Zhenyi;Ruan, Roger
提出了微波吸收剂存在下的快速微波辅助热解（fMAP）新概念。以木屑和玉米秸秆为原料，碳化硅为微波吸收剂，采用微波加热法进行热解。对生物油进行了表征，并分析了温度、进料量、粒径和真空度等因素的影响。对于木屑，480摄氏度的温度，50粒度的SiC，2克/分钟的生物质进料，是最佳条件，最大生物油产率为65重量%。对于玉米秸秆，温度范围从490摄氏度到560摄氏度，生物质颗粒尺寸从0.9毫米到1.9毫米，和真空度低于100毫米汞柱获得最大生物油产率为64重量%。研究结果表明，微波吸收剂用于fMAP的制备是可行的，是一种提高微波热解技术实用价值和工业应用前景的新技术。(C)2014爱思唯尔有限公司版权所有。
A novel concept of fast microwave assisted pyrolysis (fMAP) in the presence of microwave absorbents was presented and examined. Wood sawdust and corn stover were pyrolyzed by means of microwave heating and silicon carbide (SiC) as microwave absorbent. The bio-oil was characterized, and the effects of temperature, feedstock loading, particle sizes, and vacuum degree were analyzed. For wood sawdust, a temperature of 480 degrees C, 50 grit SiC, with 2 g/min of biomass feeding, were the optimal conditions, with a maximum bio-oil yield of 65 wt.%. For corn stover, temperatures ranging from 490 degrees C to 560 degrees C, biomass particle sizes from 0.9 mm to 1.9 mm, and vacuum degree lower than 100 mmHg obtained a maximum bio-oil yield of 64 wt.%. This study shows that the use of microwave absorbents for fMAP is feasible and a promising technology to improve the practical values and commercial application outlook of microwave based pyrolysis. (C) 2014 Elsevier Ltd. All rights reserved.