Jump to ContentJump to Main Navigation
Show Summary Details
More options …

International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

12 Issues per year

IMPACT FACTOR 2017: 0.881
5-year IMPACT FACTOR: 0.908

CiteScore 2017: 0.86

SCImago Journal Rank (SJR) 2017: 0.306
Source Normalized Impact per Paper (SNIP) 2017: 0.503

See all formats and pricing
More options …
Volume 1, Issue 1


Volume 9 (2011)

Volume 8 (2010)

Volume 7 (2009)

Volume 6 (2008)

Volume 5 (2007)

Volume 4 (2006)

Volume 3 (2005)

Volume 2 (2004)

Volume 1 (2002)

The CREC Fluidized Riser Simulator. Characterization of Mixing Patterns

Jason M Ginsburg / Ahmet Pekediz / Hugo Ignacio de Lasa
Published Online: 2003-11-19 | DOI: https://doi.org/10.2202/1542-6580.1112

The CREC Riser Simulator Reactor is a new laboratory scale unit that was invented at CREC-UWO (de Lasa, 1991). It was specially designed for catalyst testing and kinetic modeling under the conditions of riser and downer reactors. Preliminary work on mixing patterns in the Riser Simulator was already effected by our group using a helium tracer and a constant temperature hot wire anemometer (Pekediz et al, 1993) with both of these devices placed in the outer reactor annulus. However and given the possible ambiguity of the mixing patterns established with these data, helium tracer was injected in the present study into the central catalyst basket, while velocity measurements were effected in the outer annulus. This methodology allowed the definition of effective gas mixing time and gas superficial velocities at various reactor pressures and impeller speeds with increased confidence. This study found that gas mixing times corresponding to high gas recirculation rates in a CREC Riser Simulator occur over impeller rotational speeds ranging from 3000-6000 rpm and total reactor pressures ranging from 1-5 atm. With this end, gas mixing patterns in a Riser Simulator represent a well mixed unit, and thus, the importance of the Riser Simulator can be realized in the context of its potential use for gas-solid reaction kinetics.

Keywords: Catalytic reactors; mixing; tracer studies; fludized beds

About the article

Published Online: 2003-11-19

Citation Information: International Journal of Chemical Reactor Engineering, Volume 1, Issue 1, ISSN (Online) 1542-6580, DOI: https://doi.org/10.2202/1542-6580.1112.

Export Citation

©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston.Get Permission

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

G. M. Tonetto, M. L. Ferreira, J. A. Atias, and H. I. de Lasa
AIChE Journal, 2006, Volume 52, Number 2, Page 754
Inusa Abdullahi, Nataphan Sakulchaicharoen, and Jose Efrain Herrera
Diamond and Related Materials, 2012, Volume 23, Page 76

Comments (0)

Please log in or register to comment.
Log in