EFFECT OF HIGH VOIDAGE ON MASS TRANSFER COEFFICIENT IN A FLUIDIZED BED
作者:
H.B. KUMAR,
K.L. SUBLETTE,
Y.T. SHAH,
期刊:
Chemical Engineering Communications
(Taylor Available online 1993)
卷期:
Volume 121,
issue 1
页码: 157-163
ISSN:0098-6445
年代: 1993
DOI:10.1080/00986449308936142
出版商: Taylor & Francis Group
关键词: High voidage;Fluidized bed;Fast fluidized bed;Mass transfer coefficient;Transport Gas-solid
数据来源: Taylor
摘要:
Experiments were carried out to determine the gas-solid mass transfer coefficient for the air-naphthalene system under fast-fluidized conditions. The data were obtained under conditions of high voidage (as high as 98%) and high gas velocities (0·5 m/s-2·2 m/s). The results indicate that the correlation for the mass-transfer coefficient in a gas-solid fluidized bed under low voidage conditions established by previous investigators can be extended to the fast fluidization regime. Significantly lower mass transfer coefficients were, however, obtained under high voidage compared to low voidage conditions.
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