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- W42045914 abstract "Chemically reacting flow occurs in many industrial settings such as combustion, catalysis, chemical synthesis, materials processing, etc. It is particularly important because of its function in catalysis, since catalysis accounts for 90% of the processes in the chemical industry. Catalytic processes with temperatures in the range of 400-1000 degrees C are classified as high temperature. Some industrially relevant high temperature catalytic processes include combustion and partial oxidation of hydrocarbons for energy production, and catalytic cracking for oil refining [1].Microreactors, with characteristic dimensions less than one millimeter, have been shown to quench explosive reaction systems and are well worth exploring [2-5]. Microreactors have several advantages over conventional reactors, such as good thermal transport and increased surface-to-volume ratio. Microreactors can also be used to study explosive reaction systems such as hydrogen oxidation. Hydrogen oxidation is an important reaction for energy production through combustion and use in fuel cells. The reaction has wide flammability limits, 3-75 vol% of H2 in air, and very high flame velocities which can lead to strong explosions [6]. In order to avoid explosions and to operate this reaction safely, it would be ideal to run hydrogen oxidation via the catalytic pathway. The aim of this study is to investigate the use of microreactors for potentially explosive high temperature catalytic reactions through detailed numerical simulations, and the development of a modular silicon microreactor. In this study, simulations will be performed using the same two-dimensional boundary layer model and CRESLAF module (version CHEMKIN 4.0 will be used). These simulation studies show the suppression of the homogeneous radical formation, which allows for the safe operation of the hydrogen oxidation reaction. An experimental microreactor was designed using detailed numerical simulations in Fluent. A preliminary experimental setup was also fabricated." @default.
- W42045914 created "2016-06-24" @default.
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- W42045914 date "2008-01-30" @default.
- W42045914 modified "2023-09-27" @default.
- W42045914 title "CATALYTIC MICROCHANNEL REACTORS FOR CLEAN, INTRINSICALLY SAFE PROCESSES" @default.
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