C类颗粒添加纳米细粉后的流态化行为研究

Translated title of the contribution: Study on flow behaviors of group C particles blended with nano additives

Ke Xu, Meng Qi Han, Hai Ping Zhang, Jing Xu Zhu, Yuan Yuan Shao

Research output: Journal PublicationArticlepeer-review

Abstract

In order to investigate the effect of nano additives on fluidization behaviors of fine particles, normalized pressure drop, minimum fluidization velocity, bed expansion ratio and bed collapse curve were used to characterize their fluidization behaviors. Experiments were performed in a 5.08 cm diameter fluidized bed using fine glass beads (Geldart A and C groups) as particles and SiO2 (R972) as nano additives. It is found that the flow properties of group C particles blended with nano additives were significantly improved. Compared to Geldart group A particles, the modified group C particles exhibited higher full bed and dense phase expansion ratios, which indicated a better gas-solid contact. In addition, they achieved more uniform fluidization under the same superficial gas velocity. These findings are of great significance to the application of group C particles in industries.

Translated title of the contributionStudy on flow behaviors of group C particles blended with nano additives
Original languageChinese (Traditional)
Pages (from-to)1361-1368
Number of pages8
JournalGao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
Volume33
Issue number6
DOIs
Publication statusPublished - 1 Dec 2019
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering (all)

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