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Studies in char gasification—III: The combustion zone

✍ Scribed by S. Sundaresan; Neal R. Amundson

Book ID
103006892
Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
484 KB
Volume
34
Category
Article
ISSN
0009-2509

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✦ Synopsis

Abswae'The fluldlzed bed steam-oxygen-char gasdier IS modelled by treatmg the bed as one in which the sohds are well mixed and the gases are m plug flow This model permits a detaded analysis of the combustion zone The entire reactor IS assumed to be at a untform temperature From the results of the model calculations, It was concluded that the assumption of negltgrble combustion zone thickness made m the earher two papers IS acceptable This model predicts higher total carbon conversIon and methane mole fraction m the product gas than the lumped model analysed In an earher paper

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The lumped model developed m the earher paper, for flmdlzed bed steam-oxygen-char gasdicahon 1s mod&d by takmg mto ConslderaUon the bubblmg nature of the fluid flow The bubbles were assumed to be umform m sue and the computations were carned out treatmg the bubble size as a parameter It was found th