COLD FLOW MODEL AND COMPUTER-SIMULATION STUDIES OF A CIRCULATING FLUIDIZED-BED REACTOR FOR THE OXIDATIVE COUPLING OF METHANE

被引：8
|
作者：
TJATJOPOULOS, GJ [1 ]
KETEKIDES, PT [1 ]
IATRIDES, DK [1 ]
VASALOS, IA [1 ]
机构：
[1] ARISTOTELIAN UNIV THESSALONIKI,DEPT CHEM ENGN,GR-54006 UNIVERSITY CITY,GREECE
来源：
CATALYSIS TODAY | 1994年 / 21卷 / 2-3期
关键词：
D O I：
10.1016/0920-5861(94)80160-6
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A circulating fluidized bed configuration has been developed for application in the oxidative coupling process. The configuration comprises a bottom turbulent fluidized bed, wherein the oxidative coupling reaction is conducted, followed by a reduced-diameter top fast bed for catalyst entrainment and hydrocarbon cracking. The hydrodynamic characteristics of this configuration have been investigated in a pilot-plant cold flow unit. Detailed experimental results on the turbulent bed flow structure and the gas phase residence time distribution are presented and discussed. The performance of the proposed reactor is analyzed by computer simulation studies based on a published oxidative coupling kinetic model. It is shown that improved hydrocarbon yields can be obtained by optimizing the hydrodynamic structure and the mixing characteristics of the turbulent bed.
引用
收藏
页码：387 / 399
页数：13
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