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Intensification of the fluidization performances of polypropylene by using microwave absorbent
Chemical Engineering and Processing: Process Intensification ( IF 3.8 ) Pub Date : 2020-07-01 , DOI: 10.1016/j.cep.2020.108017
Rongchun Zhang , Yunlei Cui , Yaning Zhang , Wenming Fu , Mirza Abdullah Rehan , Bingxi Li

Fluidization is an effective method to better help the transfer and conversion of fuel particles. In this study, intensification of the fluidization performances of polypropylene was experimentally investigated by using microwave absorbent. The fluidization performances of polypropylene (PP) were initially presented and the effects of microwave absorbent (SiC) particle size, mass ratio of SiC to PP, and fluidization velocity on the co-fluidization performances were studied and presented. The results showed that the PP load significantly increased the initial bed height whereas slightly increased the critical fluidization velocity and bed expansion ratio. Adding microwave absorbent (SiC) can effectively improve the fluidization performance of PP particles. The smaller SiC particles (0.25−1 mm) had better fluidization performances than the larger ones (1–1.5 mm and 1.5−2 mm). The mass ratio of silicon carbide to polypropylene decreased the critical fluidization velocity. Fluidization velocity significantly affected the co-fluidization performance. For the co-fluidization of polypropylene and silicon carbide in the designed fluidized bed, the recommended fluidization parameters were: (a) the particle size of silicon carbide of 0.25–1 mm, (b) the mass ratio of silicon carbide to polypropylene of 3:2, and (c) the fluidization velocity of 0.66 m/s.



中文翻译:

使用微波吸收剂增强聚丙烯的流化性能

流化是一种更好地帮助燃料颗粒转移和转化的有效方法。在这项研究中,通过使用微波吸收剂实验研究了聚丙烯流化性能的增强。首先介绍了聚丙烯(PP)的流化性能,并研究了微波吸收剂(SiC)的粒径,SiC与PP的质量比以及流化速度对共流化性能的影响。结果表明,PP负荷显着增加了初始床层高度,而略微增加了临界流化速度和床层膨胀率。添加微波吸收剂(SiC)可以有效地改善PP颗粒的流化性能。较小的SiC颗粒(0。25-1 mm)的流化性能要优于较大的(1-1.5 mm和1.5-2 mm)。碳化硅与聚丙烯的质量比降低了临界流化速度。流化速度显着影响了共流化性能。为了在设计的流化床中对聚丙烯和碳化硅进行共流化,建议的流化参数为:(a)碳化硅的粒径为0.25–1 mm,(b)碳化硅与聚丙烯的质量比为3 :2,和(c)0.66 m / s的流化速度。

更新日期:2020-07-01
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