Configuration Optimization and Mass Transfer in a Dual-Impeller Bioreactor

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	Configuration Optimization and Mass Transfer in a Dual-Impeller Bioreactor
	Zu, Liangzhu 1,2; Zhou, Hongbao 2; Yang, Shifang 2; Li, Xiangyang 2; Yang, Chao 2; Mao, Zai-Sha 2
刊名	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
	2015-05-01
卷号	48 期号:5 页码:360-366
关键词	Bioreactors Leaching Low Shear Gas-Liquid-Solid Mass Transfer Mixing
ISSN号	0021-9592
英文摘要	The bioreactor configuration including a dual-impeller combination, spacing between the impellers, and the diameter of the ring sparger is optimized based on solid suspension (N-jsg) and gas dispersion (N-f and k(L)a) in this work. Then, the solid suspension and gas dispersion performance in this optimized bioreactor are systematically studied. It is found that a smaller sparger (D-s/T = 0.32) achieves better performance in gas dispersion. A pitched-blade disc turbine down-pumping (PDTD) as a bottom impeller achieves the lowest N-jsg value, and has lower N-f value compared with PBTD (pitched blade turbine down-pumping) and TBHA (three-bladed helical agitator). Techmix 335 hydrofoil impeller down-pumping (TXD) as an upper impeller provides higher k(L)a values. TXD+PDTD are more suitable for the requirements of a bioreactor. k(L)a decreases slightly with increasing solid loading, which is beneficial to good gas dispersion in such bioleaching reactors with higher solid loadings (>20 wt%).
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	SOLID PARTICLES ; OXYGEN-TRANSFER ; STIRRED VESSEL ; LIQUID ; SUSPENSION ; CONTACTORS ; DESIGN ; SYSTEM ; POWER
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000354981000006
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/19242]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	1.Nanjing Tech Univ, Coll Chem & Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zu, Liangzhu,Zhou, Hongbao,Yang, Shifang,et al. Configuration Optimization and Mass Transfer in a Dual-Impeller Bioreactor[J]. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN,2015,48(5):360-366.
APA	Zu, Liangzhu,Zhou, Hongbao,Yang, Shifang,Li, Xiangyang,Yang, Chao,&Mao, Zai-Sha.(2015).Configuration Optimization and Mass Transfer in a Dual-Impeller Bioreactor.JOURNAL OF CHEMICAL ENGINEERING OF JAPAN,48(5),360-366.
MLA	Zu, Liangzhu,et al."Configuration Optimization and Mass Transfer in a Dual-Impeller Bioreactor".JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 48.5(2015):360-366.