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Monoliths as suitable catalysts for reverse‐flow combustors: Modeling and experimental validation
Author(s) -
Marín Pablo,
Ordóñez Salvador,
Díez Fernando V.
Publication year - 2010
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.12215
Subject(s) - methane , pressure drop , inlet , volumetric flow rate , nuclear engineering , flow (mathematics) , combustion , drop (telecommunication) , work (physics) , mechanics , chemical reactor , materials science , catalytic combustion , process engineering , environmental science , chemistry , mechanical engineering , chemical engineering , engineering , physics , organic chemistry
Abstract The performance of a bench‐scale monolithic reverse‐flow reactor (RFR) for methane combustion has been experimentally studied in this work. The influence of the different operating parameters, such as total gas flow rate (2.5 × 10 −4 –5 × 10 −4 m 3 s −1 (STP)), methane inlet concentration (1000–5500 ppm), and switching time (300–900 s) on the reactor performance (outlet conversion and stability), has been experimentally determined. The validation of a heterogeneous one‐dimensional dynamic model for monolithic beds with the obtained experimental data allows the use of this model to simulate the behavior of industrial‐scale reactors. In the second part of the work, a systematic comparison of particulate and monolithic RFRs is carried out through design curves. Reactor length for 99% outlet conversion and the corresponding pressure drop is determined for varying operating conditions (surface velocity and inlet methane concentration). © 2010 American Institute of Chemical Engineers AIChE J, 2010