Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation
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Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation
Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation
中国化学工程学报(英文版)2010年18卷第2期 页码:249-257
Affiliations:
1. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology,Beijing,China,100029
2. Key Laboratory for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology,Beijing,China,100029
Author bio:
Funds:
Supported by the National Natural Science Foundation of China(20821004,20325621);Beijing Municipal Commission of Education(JD100100403)
向阳, 文利雄, 初广文, 等. Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation[J]. 中国化学工程学报(英文版), 2010,18(2):249-257.
XIANG Yang, WEN Lixiong, CHU Guangwen, SHAO Lei, XIAO Guangting, CHEN Jianfeng. Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation[J]. , 2010, 18(2): 249-257.
向阳, 文利雄, 初广文, 等. Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation[J]. 中国化学工程学报(英文版), 2010,18(2):249-257.DOI: 10.1016/S1004-9541(08)60350-X.
XIANG Yang, WEN Lixiong, CHU Guangwen, SHAO Lei, XIAO Guangting, CHEN Jianfeng. Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation[J]. , 2010, 18(2): 249-257.DOI: 10.1016/S1004-9541(08)60350-X.
Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation
A mixing-precipitation model based on the modified coalescence-redispersion model was presented to describe the flow
mixing
nucleation and growth in a rotating packed bed(RPB).The model was coupled with population balance
mass balance and crystallization kinetics.It predicted well the influence of coalescence prob-ability
which represents the mixing intensity among droplets
on the particle number density
supersaturation and mean particle size of the produced precipitates.The effects of the radial thickness of packing
liquid flow rate and rotating speed on the product particle size were also investigated.The results indicate that the needed radial length of packing is short for sparingly soluble substance precipitation(about 40-50 mm in this work)
and the mean parti-cle size of precipitates decreases with the increase of rotating speed and liquid flow rate
respectively.The validity of this model was verified by experiment on BaSO
4
precipitation in RPB.
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