Mass transfer characteristics of three-phase monolith reactors

被引：210

作者：

Kreutzer, MT ^{[1
]}

Du, P ^{[1
]}

Heiszwolf, JJ ^{[1
]}

Kapteijn, F ^{[1
]}

Moulijn, JA ^{[1
]}

机构：

[1] Delft Univ Technol, Dept Chem Technol, Sect Ind Catalysis, NL-2628 BL Delft, Netherlands

来源：

CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 21-22期

关键词：

mass transfer; monoliths; capillaries; multiphase flow; hydrodynamics; alpha-methylstyrene;

D O I：

10.1016/S0009-2509(01)00271-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The mass transfer characteristics of monolith reactors in gas-liquid-solid applications have been investigated. A model is proposed which gives correlations based on different mass transfer steps for Taylor flow in capillaries. The fast hydrogenation of x-methylstyrene over Pd monolith catalysts of different cell densities (200-600 cpsi) was used as a test reaction in a pilot reactor. The reaction could be carried out in the internal and external mass transfer limited regime, as has been verified by a change in activation energy plots. Depending on the operating conditions, the overall mass transfer group k(ov)a ranged from 0.5 to 1.5 s(-1) which shows that excellent mass transfer can be achieved for gas-liquid-solid reactions in monolith reactors. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：6015 / 6023

页数：9

共 23 条

[1] The role of gas bubbles and liquid slug lengths on mass transport in the Taylor flow through capillaries [J].

Bercic, G ;

Pintar, A .

CHEMICAL ENGINEERING SCIENCE, 1997, 52 (21-22) :3709-3719

[2]

BERGLIN CT, 1984, Patent No. 102934

[3] EXPERIMENTAL-STUDY OF THE TUBULAR MULTIPHASE CATALYST [J].

CINI, P ;

HAROLD, MP .

AICHE JOURNAL, 1991, 37 (07) :997-1008

[4]

EDVINSSON R, 1994, THESIS CHALMERS U TE

[5] A COMPARISON BETWEEN THE MONOLITHIC REACTOR AND THE TRICKLE-BED REACTOR FOR LIQUID-PHASE HYDROGENATIONS [J].

EDVINSSON, RK ;

CYBULSKI, A .

CATALYSIS TODAY, 1995, 24 (1-2) :173-179

[6]

ELHISNAWI AA, 1982, ACS SYM SER, V196, P421

[7]

Frank HJW, 1999, CHEM ENG RES DES, V77, P567

[8]

GERMAIN AH, 1974, ADV CHEM SER, V133, P164

[9] THE SEGMENTED 2-PHASE FLOW MONOLITHIC CATALYST REACTOR - AN ALTERNATIVE FOR LIQUID-PHASE HYDROGENATIONS [J].

HATZIANTONIOU, V ;

ANDERSSON, B .

INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1984, 23 (01) :82-88

[10] Hydrodynamic aspects of the monolith loop reactor [J].

Heiszwolf, JJ ;

Engelvaart, LB ;

van den Eijnden, MG ;

Kreutzer, MT ;

Kapteijn, F ;

Moulijn, JA .

CHEMICAL ENGINEERING SCIENCE, 2001, 56 (03) :805-812

← 1 2 3 →