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Biomass microspheres – A new method for characterization of biomass pyrolysis and shrinkage
Bioresource Technology ( IF 11.4 ) Pub Date : 2018-09-29 , DOI: 10.1016/j.biortech.2018.09.137
Ali Zolghadr , Matthew D. Kelley , Ghazal Sokhansefat , Masoud Moradian , Brianna Sullins , Tyler Ley , Joseph J. Biernacki

A method for manufacturing biomass microspheres is introduced. Biomass microspheres between 100 and 400 µm in diameter were produced from crystalline cellulose, switchgrass, and tall fescue using spray drying. The biomass microspheres were characterized using X-ray computed tomography (XCT), thermal gravimetric analysis (TGA), and real-time optical imaging: density, pore structure, and size effects were studied. Dynamic shrinkage was video-captured using a CMOS camera and parallel (paired, side-by-side) weight loss experiments were performed using TGA. The combined data was used to correlate the extent of pyrolysis to gross morphological change (shrinkage). The results show that manufactured biomass microspheres are uniform and that, in the absence of heat and mass transport limitations, pyrolysis shrinkage is an intrinsic property dependent only upon the final processing temperatures.



中文翻译:

生物质微球–表征生物质热解和收缩的新方法

介绍了一种生物质微球的制备方法。使用喷雾干燥法,由结晶纤维素,柳枝,和高羊茅制成直径在100至400 µm之间的生物质微球。使用X射线计算机断层扫描(XCT),热重分析(TGA)和实时光学成像对生物质微球进行了表征:研究了密度,孔结构和尺寸效应。动态收缩率使用CMOS摄像机进行视频捕获,并使用TGA进行平行(成对,并排)减肥实验。合并的数据用于将热解程度与总体形态变化(收缩)相关联。结果表明,制造的生物质微球是均匀的,并且在没有热量和质量传输限制的情况下,

更新日期:2018-09-29
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