Flow regime transition in trickle beds packed with particles of different wetting characteristics - Check-up on new tools

被引：17

作者：

Horowitz, GI ^{[1
]}

Cukierman, AL ^{[1
]}

Cassanello, MC ^{[1
]}

机构：

[1] UNIV BUENOS AIRES,PINMATE,DEPT IND,FAC CIENCIAS EXACTAS & NAT,RA-2620 INT GUIRALDES,BUENOS AIRES,ARGENTINA

来源：

CHEMICAL ENGINEERING SCIENCE | 1997年 / 52卷 / 21-22期

关键词：

flow regime transition; trickle bed; hydrodynamics; particle mixtures; particle wetting; foaming liquid;

D O I：

10.1016/S0009-2509(97)00221-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Unconventional methods are checked up for identification of trickling-pulsing flow regime transition in trickle-bed reactors from pressure fluctuations time series. Methods consist in calculating the standard deviation, the Fourier power spectrum, the Hurst exponent of the sample sequential taken as a record and the correlation dimension of the attractor describing the system dynamics. Flow transitions determined from these methods are found to agree with those judged by ocular inspection. Effects of particles mixtures with different wetting features and of liquid foaming character are systematically studied. Both variables affect flow transition. However, a preeminence of the liquid foaming character is found. (C) Elsevier Science Ltd.

引用

页码：3747 / 3755

页数：9

共 16 条

[1]

Baker G.L., 1990, Chaotic Dynamics, an introduction

[2] LIQUID-GAS DISTRIBUTION MEASUREMENTS IN PULSING REGIME OF 2-PHASE CONCURRENT FLOW IN PACKED BEDS [J].