不同扰流内构件强化管式反应器传质性能的研究

王芳;初广文*;邹海魁;向阳;罗勇;陈建峰

北京化工大学学报(自然科学版) ›› 2012, Vol. 39 ›› Issue (6) : 1-5.

PDF(1490 KB)
欢迎访问北京化工大学学报(自然科学版),今天是 2025年4月4日 星期五
Email Alert  RSS
PDF(1490 KB)
北京化工大学学报(自然科学版) ›› 2012, Vol. 39 ›› Issue (6) : 1-5.
化学与化学工程

不同扰流内构件强化管式反应器传质性能的研究

  • 王芳;初广文*;邹海魁;向阳;罗勇;陈建峰
作者信息 +

The mass transfer enhancement of a tubular reactor with different inserted components

  • WANG Fang;CHU GuangWen;ZOU HaiKui;XIANG Yang;LUO Yong;CHEN JianFeng
Author information +
文章历史 +

摘要

采用NaOH-CO2-H2O体系,研究了4种不同扰流内构件及其组合型式对管式反应器传质性能的影响。以气相体积总传质系数KGaV作为衡量传质效果的评价指标,考察了液体流量L、气体流量G、不同扰流内构件及其组合型式对KGaV的影响。结果表明,KGaV随着液体流量增大而提高,气体流量的变化对KGaV的影响较小;中心扰流内构件和管壁扰流内构件的加入,有效地提高了管式反应器的KGaV;与空管相比,中心扰流内构件加入后管式反应器的KGaV提高了8%~47%,管壁扰流内构件加入后KGaV提高了15%~46%,中心与管壁组合扰流内构件加入后KGaV提高了19%~65%;通过比较4种扰流内构件对KGaV的影响可知,U型叶扇的传质强化效果最好,平面叶片的传质强化效果最差。

Abstract

The chemical absorption of CO2by an aqueous solution of NaOH has been employed to investigate the mass transfer performance in a tubular reactor with four different inserted components. The effects of combinations of the four inserted components on the mass transfer performance were also studied. The volumetric overall mass transfer coefficients (KGaV) for the tubular reactor were evaluated with the liquid flow rate and gas flow rate as operating variables. The experimental results showed that KGaV increased with the increase of the liquid flow rate while the gas flow rate had a negligible effect on KGaV. The inserted components could increase the values of KGaV of the tubular reactor and greatly intensify the mass transfer process. The KGaV values of the tubular reactor with central components, tube wall components and their combinations were higher than those of the tubular reactor with no inserted components by 8%-47%, 15%-46% and 19%-65%, respectively. Comparison of the overall performance of the four inserted components suggests that in terms of KGaV values, insertion of the U-blades in the tubular reactor offered the best mass transfer enhancement while flat blades offered the worst mass transfer enhancement.

引用本文

导出引用
王芳;初广文*;邹海魁;向阳;罗勇;陈建峰. 不同扰流内构件强化管式反应器传质性能的研究[J]. 北京化工大学学报(自然科学版), 2012, 39(6): 1-5
WANG Fang;CHU GuangWen;ZOU HaiKui;XIANG Yang;LUO Yong;CHEN JianFeng. The mass transfer enhancement of a tubular reactor with different inserted components[J]. Journal of Beijing University of Chemical Technology, 2012, 39(6): 1-5

参考文献

[1]BlekkanE A, Myrstad R, Olsvik O, et al. Characterization of tars and coke formed during the pyrolysis of methane in a tubular reactor[J]. Carbon, 1992, 30(4): 665-673. 
[2]刘国际, 王光龙, 许秀成. 磷铵管式反应器气液传质的研究[J]. 郑州工学院学报, 1991, 12(1): 95-103. 
Liu G J, Wang G L, Xu X C. Studies of gas-liquid mass transfer in ammonium phosphate pipe-line reactor[J]. Journal of Zhengzhou Institute of Technology, 1991, 12(1): 95-103. (in Chinese)
[3]Turunen I, Haario H. Mass transfer in tubular reactors equipped with static mixers[J]. Chemical Engineering Science, 1994, 49(24B): 5257-5269. 
[4]Khinast J G, Bauer A, Bolz D, et al. Mass-transfer enhancement by static mixers in a wall-coated catalytic reactor[J]. Chemical Engineering Science, 2003, 58(3): 1063-1070. 
[5]张丽, 谢桂兰, 刘云义, 等. 复合扰流柱的螺旋内构件反应器内流体的宏观混合[J]. 过程工程学报, 2010, 10(6): 1071-1075. 
Zhang L, Xie G L, Liu Y Y, et al. Macro-mixing of tubular reactor with helical internals constructed with pins[J]. The Chinese Journal of Process Engineering, 2010, 10(6): 1071-1075. (in Chinese)
[6]Aroonwilas A, Veawab A, Tontiwachwuthikul P. Behavior of the mass-transfer coefficient of structured packings in CO2 absorbers with chemical reactions[J]. Industrial and Engineering Chemistry Research, 1999, 38(5): 2044-2050. 
[7]骆培成, 王志祥, 焦真, 等. 填料塔中的NaOH水溶液脱除空气中微量CO2的传质动力学[J]. 化工时刊, 2004, 18(2): 35-40. 
Luo P C, Wang Z X, Jiao Z, et al. Mass transfer coefficients for CO2 removal from polluted air into aqueous solution of NaOH in a packed tower[J]. Chemistry Industry Times, 2004, 18(2): 35-40. (in Chinese)
[8]张好翠, 乐军, 陈光文, 等. 降膜微反应器中CO2化学吸收过程传质行为[J]. 化工学报, 2010, 61(3): 635-641. 
Zhang H C, Yue J, Chen G W, et al. Mass transfer behaviors in process of chemical absorption of CO2 in falling film microreactors[J]. CIESC Journal, 2010, 61(3): 635-641. (in Chinese)
[9]Danckwerts P V. Continuous flow systems: Distribution of residence times[J]. Chemical Engineering Science, 1953, 2: 1-13. 
[10]陈敏恒, 丛德滋, 方图南, 等. 化工原理: 下册[M]. 3版. 北京: 化学工业出版社, 2006. 
Chen M H, Cong D Z, Fang T N, et al. Chemical engineering principles: Volume 2[M]. 3rd Ed. Beijing: Chemical Industry Press, 2006. (in Chinese)
PDF(1490 KB)

3017

Accesses

0

Citation

Detail

段落导航
相关文章

/