TY - JOUR
T1 - An investigation into the effect of particle size distribution on the fluidization behavior of Group C and Group A particles
AU - Li, Weihong
AU - Wang, Jiaying
AU - Zhou, Yandaizi
AU - Shao, Yuanyuan
AU - Zhang, Hui
AU - Zhu, Jesse
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/1
Y1 - 2022/1
N2 - Group C particles possess great potential in gas-phase catalytic reactions due to the large specific surface area. This work focuses on the effects of particle size distribution (PSD), average particle diameter, and addition of nano-additive on the flowability and fluidization quality of Group C and Group A powders. Virgin Group C powders are hard to fluidize, but with the so-called nano-modulation, Group C powders exhibit readily detectable minimum fluidization velocity (Umf), high bed expansion and large dense-phase voidage. After nano-modulation, Group C particles with a wider PSD show higher bed expansion, indicating better gas-solid contact. On the other hand, a narrower PSD contributes to better flowability, higher normalized pressure drop, and lower Umf. For Group C particles with the same span, a smaller particle size improves bed expansion. Comparative studies also show that the influence of PSD is more significant for Group C particles than for Group A particles.
AB - Group C particles possess great potential in gas-phase catalytic reactions due to the large specific surface area. This work focuses on the effects of particle size distribution (PSD), average particle diameter, and addition of nano-additive on the flowability and fluidization quality of Group C and Group A powders. Virgin Group C powders are hard to fluidize, but with the so-called nano-modulation, Group C powders exhibit readily detectable minimum fluidization velocity (Umf), high bed expansion and large dense-phase voidage. After nano-modulation, Group C particles with a wider PSD show higher bed expansion, indicating better gas-solid contact. On the other hand, a narrower PSD contributes to better flowability, higher normalized pressure drop, and lower Umf. For Group C particles with the same span, a smaller particle size improves bed expansion. Comparative studies also show that the influence of PSD is more significant for Group C particles than for Group A particles.
KW - Flowability
KW - Fluidization quality
KW - Group C particles
KW - Nano-additive
KW - Particle size distribution (span)
UR - http://www.scopus.com/inward/record.url?scp=85124100053&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2022.117142
DO - 10.1016/j.powtec.2022.117142
M3 - Article
AN - SCOPUS:85124100053
SN - 0032-5910
VL - 398
JO - Powder Technology
JF - Powder Technology
M1 - 117142
ER -