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Structure of operating domains of loop reactors
Author(s) -
Nekhamkina Olga,
Sheintuch Moshe
Publication year - 2008
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.11462
Subject(s) - loop (graph theory) , combustion , work (physics) , process engineering , control theory (sociology) , rendering (computer graphics) , mechanical engineering , computer science , nuclear engineering , engineering , chemistry , mathematics , control (management) , organic chemistry , combinatorics , artificial intelligence , computer graphics (images)
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. © 2008 American Institute of Chemical Engineers AIChE J, 2008