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- W184261437 abstract "The present study was conducted to investigate the gasification reaction under commercially representative conditions. Thus, pressure was varied from 100 to 3500 kPa and hydrogen concentration was varied from 0 to 60%. Other reaction conditions, such as temperature and catalyst loading, were also varied to check published results at these more representative conditions. The data from this study were combined with mechanistic information from the literature. Only one kinetic model was found which fit both the data and the literature mechanism. The two adjustable constants for this model were and regressed using over 1200 pieces of data. The potassium catalyzed gasification of Illinois No. 6 bituminous coal was found to fit a Langmuir-Hinshelwood type kinetic model. This model provides a good fit to fixed bed and miniature fluid bed data over pressures ranging from atmospheric to 3500 kPa and over broad ranges of gas composition. The model closely predicted the observed flow rates of each specie in the product gas over a range of an order of magnitude or more. This model is consistent with the surface oxide mechanism for the steam-carbon reaction which was proposed in earlier literature. A sophisticated statistical regression technique was used to choose the twomore » adjustable constants for this model by comparison with over 1200 pieces of data. The kinetic constants were regressed from data taken over the range of practical commercial interest. This kinetic model may be combined with independently verified correlations for bubble growth and mass transfer in a fluidized bed and used directly to study larger pilot plant data or scale-up issues.« less" @default.
- W184261437 created "2016-06-24" @default.
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- W184261437 date "1982-01-01" @default.
- W184261437 modified "2023-09-22" @default.
- W184261437 title "Kinetics of potassium catalyzed gasification. [100 to 3500 KPa; 0 to 60% hydrogen concentration]" @default.
- W184261437 hasPublicationYear "1982" @default.
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