田震,成有为,王丽军,李希

• 1:浙江大学化学工程与生物工程学院
• 2:浙江大学衢州研究院

摘要(Abstract)：

温度压力对孔口气泡生成过程具有重要影响。以氮气-硅油气液体系为对象,在自行设计加工的高温高压可视化鼓泡塔中,采用高速摄像法,观察了单孔气体进料时孔口气泡的形成过程,测定了气泡直径与纵横比,考察了孔口气速(0～1 000 cm×s~(-1))、温度(283～473K)、压力(0～3 MPa)以及孔径(1.12和2.5 mm)对气泡生长过程的影响。实验表明,黏性液体中呈现出大小气泡成对产生的双气泡生成模式;气泡直径随温度和压力升高而减小;低温时压力对气泡直径影响较小,高温时影响显著。通过与以往气泡直径关联式进行对比,修正了GADDIS提出的气泡直径模型,得出新的适用于高温高压条件下气泡直径的估算式。

关键词(KeyWords)： 气泡直径;鼓泡塔;高温高压;实验测量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(91334105)

作者(Author): 田震,成有为,王丽军,李希

参考文献(References)：

• [1] CALDERóN C J, ANCHEYTA J. Modeling of slurry-phase reactors for hydrocracking of heavy oils[J]. Energy&Fuels, 2016,30(4):2525-2543.
• [2]张玉卓.中国煤炭液化技术发展前景[J].煤炭科学技术, 2006(1):19-22.ZHANG Y Z. Development outlook of China coal liquefaction technology[J]. Coal Science and Technology, 2006(1):19-22.
• [3] BASHA O M, SEHABIAGUE L, ABDEL-WAHAB A, et al. Fischer-Tropsch synthesis in slurry bubble column reactors:Experimental investigations and modeling-a review[J]. International Journal of Chemical Reactor Engineering, 2015, 13(3):201-288.
• [4] DAVIDSON J. Bubble formation at an orifice in a viscous liquid[J]. Transaction of Institute of Chemical Engineering, 1960, 38:144-154.
• [5] SIEMES W, KAUFFMANN J. Die periodische entstehung von gasblasen an dusen[J]. Chemical Engineering Science, 1956, 5(3):127-139.
• [6] RAMAKRISHNAN S, KUMAR R, KULOOR N R. Studies in bubble formation-I bubble formation under constant flow conditions[J]. Chemical Engineering Science, 1969, 24(4):731-747.
• [7] TERASAKA K, TSUGE H. Bubble formation at a single orifice in highly viscous liquids[J]. Journal of Chemical Engineering of Japan, 1990, 23(2):160-165.
• [8] ZAHEDI P, SALEH R, MORENO-ATANASIO R, et al. Influence of fluid properties on bubble formation, detachment, rising and collapse; Investigation using volume of fluid method[J]. Korean Journal of Chemical Engineering, 2014, 31(8):1349-1361.
• [9] SATTARI A, HANAFIZADEH P. Bubble formation on submerged micrometer-sized nozzles in polymer solutions:An experimental investigation[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2019, 564:10-22.
• [10] KUMAR R, KULOOR N. The formation of bubbles and drops[M]. Bangalore:Academic Press, 1970:255-368.
• [11] BENZING R J, MYERS J E. Low frequency bubble formation at horizontal circular orifices[J]. Industrial&Engineering Chemistry, 1955, 47(10):2087-2090.
• [12] DATTA R, NAPIER D, NEWITT D. The properties and behaviour of gas bubbles formed at circular orifices[C]//Chemistry&Industry. 14 Belgrave Square, London Sw1x 8PS, England:Soc Chemical Industry, 1950(9):168-168.
• [13] IDOGAWA K, IKEDA K, FUKUDA T, et al. Formation and flow of gas bubbles in a pressurized bubble column with a single orifice or nozzle gas distributor[J]. Chemical Engineering Communications, 1987, 59(1-6):201-212.
• [14] TSUGE H, NAKAJIMA Y, TERASAKA K. Behavior of bubbles formed from a submerged orifice under high system pressure[J].Chemical Engineering Science, 1992, 47(13/14):3273-3280.
• [15] WILKINSON P M, VANDIERENDONCK L L. A theoretical-model for the Influence of gas properties and pressure on single-bubble formation at an orifice[J]. Chemical Engineering Science, 1994, 49(9):1429-1438.
• [16] WEN J M, GU H F, SUN Q N, et al. Bubble formation characteristic of submerged single-hole orifice in inorganic solution[C]//2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers Digital Collection, 2017.
• [17] LUO X, YANG G, LEE D, et al. Single bubble formation in high pressure liquid-solid suspensions[J]. Powder technology, 1998,100(2/3):103-112.
• [18] YANG G, LUO X, LAU R, et al. Bubble formation in high-pressure liquid-solid suspensions with plenum pressure fluctuation[J].AIChE Journal, 2000, 46(11):2162-2174.
• [19] YANG G. Bubble formation dynamics and transport phenomena in high pressure bubble columns and slurry bubble columns[D].Columbus:The Ohio State University, 2001.
• [20] YOO D H, TSUGE H, TERASAKA K, et al. Behavior of bubble formation in suspended solution for an elevated pressure system[J].Chemical Engineering Science, 1997, 52(21/22):3701-3707.
• [21] AOYAMA S, HAYASHI K, HOSOKAWA S, et al. Shapes of ellipsoidal bubbles in infinite stagnant liquids[J]. International Journal of Multiphase Flow, 2016, 79:23-30.
• [22] ILIADIS P, DOUPTSOGLOU V, STAMATOUDIS M. Effect of orifice submergence on bubble formation[J]. Chemical Engineering&Technology, 2000, 23(4):341-345.
• [23] LIN T J, TSUCHIYA K, FAN L S. Bubble flow characteristics in bubble columns at elevated pressure and temperature[J]. AIChE journal, 1998, 44(3):545-560.
• [24] CORCHERO G, MONTA S J L, CORCHERO T LLEZ J. Effect of flow rate conditions on bubble formation[J]. International Journal of Heat and Mass Transfer, 2012, 55(19/20):5044-5052.
• [25] GADDIS E S, VOGELPOHL A. Bubble Formation in quiescent liquids under constant flow conditions[J]. Chemical Engineering Science, 1986, 41(1):97-105.
• [26] JAMIALAHMADI M, ZEHTABAN M R, M LLER-STEINHAGEN H, et al. Study of bubble formation under constant flow conditions[J]. Chemical Engineering Research and Design, 2001, 79(5):523-532.
• [27] HONGYI W, FENG D, YUCHEN B, et al. Improved correlation for the volume of bubble formed in air-water system[J]. Chinese Journal of Chemical Engineering, 2011, 19(3):529-532.
• [28] KANTARCI N, BORAK F, ULGEN K O. Bubble column reactors[J]. Process Biochemistry, 2005, 40(7):2263-2283.
• [29] SNABRE P, MAGNIFOTCHAM F. I. Formation and rise of a bubble stream in a viscous liquid[J]. The European Physical Journal B-Condensed Matter and Complex Systems, 1998, 4(3):369-377.