Mass transfer characteristics in gas-liquid swirling quench box with gas injection

被引：0

作者：

Yu, Kun ^{[1
]}

Shi, Yan ^{[1
]}

Wang, Zhenyuan ^{[1
]}

Huang, Zibin ^{[1
]}

Cheng, Zhenmin ^{[1
]}

机构：

[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai

来源：

Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Gas-liquid flow; Interfacial area; Mass transfer; Mixing; Quench box; Swirling flow;

D O I：

10.11949/j.issn.0438-1157.20150650

中图分类号：

学科分类号：

摘要：

A novel gas-sparged quench box with multiple swirling flow structures was designed. With the gas velocity of 10-80 m·s-1 and liquid velocity of 0.2-0.7 m·s-1 in a cold-flow model experiment, the liquid volumetric mass transfer coefficient (kLa) was measured using the oxygen absorption method, and the interfacial area (a) was measured using air-Na2SO3 solution chemical absorption method. The results showed that mass transfer parameters increased with the increase of gas jet velocity and liquid inlet velocity, especially changing more pronouncedly with fluctuation of gas jet. The kLa and a were better than traditional quench box's performance and were at the same order of magnitude as mechanically stirred device, which illustrated that the multi-swirling quench box is capable of excellent mixing performance. Empirical correlations, obtained through dimensional analysis, fit the experimental data well and could be used to predict the mass transfer characteristics. ©, 2015, Chemical Industry Press. All right reserved.

引用

页码：2947 / 2952

页数：5

共 16 条

[1]

Babich I., Moulijn J., Science and technology of novel processes for deep desulfurization of oil refinery streams: A review, Fuel, 82, 6, pp. 607-631, (2003)

[2]

Alvarez A., Ancheyta J., Simulation and analysis of different quenching alternatives for an industrial vacuum gasoil hydrotreater, Chemical Engineering Science, 63, 3, pp. 662-673, (2008)

[3]

Maiti R., Nigam K., Gas-liquid distributors for trickle-bed reactors: A review, Industrial & Engineering Chemistry Research, 46, 19, pp. 6164-6182, (2007)

[4]

Ma C., Zhao Z., Shi F., Application of fluid dynamics simulation in development of new quench box, Petroleum Refinery Engineering, 42, 1, pp. 29-33, (2012)

[5]

Lin F., Cai L., Study on the performance of quench box in hydrotreating reactor, Petroleum Refinery Engineering, 33, 8, pp. 40-43, (2003)

[6]

Jang T.Y., Ahn M.K., Bae S.H., Quenching apparatus for a reactor

[7]

Neil K., Gregory P., Sherri L., Multiphase mixing device with improved quench injection

[8]

Alvarez A., Ramirez S., Ancheyta J., Key role of reactor. internals in hydroprocessing of oil fractions, Energy & Fuels, 21, 3, pp. 1731-1740, (2007)

[9]

Liu Y., Liu Z., Yuan N., Liquid circulation rate and volumetric mass transfer coefficient in multi-tube airlift loop reactor, Journal of Chemical Industry and Engineering(China), 52, 3, pp. 222-226, (2001)

[10]

Lee J.S., Jin H.R., Kang Y., Interfacial area and liquid-side and overall mass transfer coefficients in a three-phase circulating fluidized bed, Chemical Engineering Science, 100, pp. 203-211, (2013)

← 1 2 →