Structure of operating domains of loop reactors

Olga Nekhamkina; Moshe Sheintuch

doi:10.1002/aic.11462

Structure of operating domains of loop reactors

Olga Nekhamkina^*, Moshe Sheintuch

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

A loop reactor (LR), composed as an N-unit loop with step-wise shifted inlet and outlet ports, is one of suggested technological solutions for low-concentration volatile organic compounds (VOC) combustion. Such a scheme ensures a sufficiently high temperature with autothermal behavior and nearly uniform catalytic utilization. The main drawback of the LR is a very narrow window of switching velocities that sustain a stable "frozen" solution that exists if the switching and the pulse velocity are synchronized. In the present work we show the existence of many "finger" -like domains of complex frequency-locked solutions that allow to significantly extend the operation domain, rendering the LR scheme more attractive for practical implementation. A brief comparison with the other heat recuperation technologies (reverse flow and circular loop reactors) is presented.

Original language	English
Pages (from-to)	1292-1302
Number of pages	11
Journal	AICHE Journal
Volume	54
Issue number	5
DOIs	https://doi.org/10.1002/aic.11462
State	Published - May 2008
Externally published	Yes

Keywords

Bifurcations
Packed bed
Reactor analysis
Simulation process

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10.1002/aic.11462

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AB - A loop reactor (LR), composed as an N-unit loop with step-wise shifted inlet and outlet ports, is one of suggested technological solutions for low-concentration volatile organic compounds (VOC) combustion. Such a scheme ensures a sufficiently high temperature with autothermal behavior and nearly uniform catalytic utilization. The main drawback of the LR is a very narrow window of switching velocities that sustain a stable "frozen" solution that exists if the switching and the pulse velocity are synchronized. In the present work we show the existence of many "finger" -like domains of complex frequency-locked solutions that allow to significantly extend the operation domain, rendering the LR scheme more attractive for practical implementation. A brief comparison with the other heat recuperation technologies (reverse flow and circular loop reactors) is presented.

KW - Bifurcations

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KW - Reactor analysis

KW - Simulation process

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ER -

Structure of operating domains of loop reactors

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Keywords

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