石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (2): 9-15.
• 基础研究 • 上一篇 下一篇
薄守石1,王剑2,白飞3,孙兰义1
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国家自然科学基金资助项目;中央高校基本科研业务费专项资金资助项目;高等学校博士学科点专项科研基金新教师类资助课题
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摘要：
选用欧拉-欧拉多相流模型和RNG k-ε湍流模型对不同进料形式鼓泡床反应器进行了三维全尺寸模拟，分析并比较了采用不同形式进料的反应器内气含率和轴向液速的异同。结果表明：不同进料形式的鼓泡床反应器内均形成了循环流动；文丘里喷嘴和多喷嘴的性能优于单喷嘴；环管分布器和排管分布器能提供均匀的气含率分布和大尺度的液相循环流动，性能优于3种喷嘴进料形式。
关键词: 鼓泡床反应器, 喷嘴, 分布器, 数值模拟
Abstract:
Three-dimensional numerical simulations of bubble column reactors with different nozzles or distributors were conducted using Euler-Euler multiphase model and RNG k-ε turbulence model. The gas holdup and axial liquid velocity in reactors were analyzed and compared. The results indicate that the liquid circulation flow is formed in all reactors. Venturi nozzle and multi-nozzle are proved to be more effective than single-nozzle. A uniform gas holdup distribution and a large-scale liquid circulation can be provided by ring and calandria liquid distributors, indicating the better performance than that of three nozzles tested.
Key words: bubble column reactor, nozzle, distributor, numerical simulation
薄守石 王剑 白飞 孙兰义. 不同进料形式鼓泡床反应器流动特性的模拟研究[J]. 石油炼制与化工, 2016, 47(2): 9-15.
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