Premium
Periodic operation of transport reactors for catalytic reactions
Author(s) -
Sivakumar S.,
Chidambaram M.,
Shankar H. S.
Publication year - 1987
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450650509
Subject(s) - catalysis , plug flow reactor model , chemistry , plug flow , flow (mathematics) , inlet , kinetics , mechanics , chemical engineering , materials science , continuous stirred tank reactor , physics , organic chemistry , classical mechanics , mechanical engineering , engineering
Based on plug flow of gas and catalyst particles and concentration dependent deactivation kinetics, the performance of transport reactors under a periodic (rectangular pulse) inlet concentration is analysed for improvement in conversion and extent of catalyst decay. The effects of reaction and deactivation orders, reaction and deactivation constant groups, and γ (cycle split) on the performance of the reactors are evaluated theoretically. For reaction orders greater than one, periodic operation improves conversion. Resonance behaviour is observed for certain combinations of parameters. For identical operating conditions vertical upflow, downflow and horizontal flow reactors are compared. Conversion in upflow reactors is higher than that in either horizontal flow or downflow reactors. However, catalyst decay is the least in downflow reactors.