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螺旋构件强化排液的泡沫分离塔用于牛血清蛋白分离
引用本文:杨全文,吴兆亮,殷昊,谭颖. 螺旋构件强化排液的泡沫分离塔用于牛血清蛋白分离[J]. 化工学报, 2011, 62(4): 1000-1005
作者姓名:杨全文  吴兆亮  殷昊  谭颖
作者单位:河北工业大学化工学院,天津 300130
基金项目:天津市应用基础及前沿技术研究计划重点项目
摘    要:引言泡沫分离技术又称泡沫吸附分离技术[1],是以气泡作为分离介质,利用被分离组分在气液两相界面吸附性质的差异进行浓缩溶液中表面活性组分.在泡沫分离过程中,通过空气分布器在泡沫塔液相中产生气泡,气泡沿着轴向向上流动,被分离表面活性组分吸附在气泡的气液两相界面上,当吸附接近平衡后,气泡离开液相,在液相上方形成泡沫相.

关 键 词:泡沫分离  排液  螺旋构件  富集比  牛血清蛋白  

Enhancing foam drainage using foam fractionation column with spiral internals for separation of bovine serum albumin
YANG Quanwen,WU Zhaoliang,YIN Hao,TAN Ying. Enhancing foam drainage using foam fractionation column with spiral internals for separation of bovine serum albumin[J]. Journal of Chemical Industry and Engineering(China), 2011, 62(4): 1000-1005
Authors:YANG Quanwen  WU Zhaoliang  YIN Hao  TAN Ying
Abstract:A new type of foam fractionation column with spiral internals named as the spiral column was designed for enhancing the foam phase drainage.The column without spiral internals was used as the comparison column and the bovine serum albumin (BSA)was used as the model aqueous solution.The effects of liquid volume, the initial concentration of BSA, superficial gas velocity and the initial pH on enrichment ratio and the recovery of BSA were investigated.The experimental results showed that the spiral column decreased the internal liquid flow resistance among bubbles, enhanced separation of bubbles from the internal liquid among the bubbles and effectively improved the concentration ratio of BSA.The enrichment ratio of BSA by the spiral column was 15.3, which was 2.5 times that of BSA by the comparison column under the conditions of liquid volume 600 ml, the initial concentration of BSA 0.2 g·L-1, superficial gas velocity 18.4 m·h-1 and initial pH 6.2.Therefore, it was very important for the application of foam separation technique to the industrial production for developing the new type of foam fractionation column with the spiral structure.
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