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Internal catalytic bed in a staged fluidized bed
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
2015 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In this work the purpose is to investigate whether a staged fluidized bed can maintain its hydrodynamics while introducing a stationary internal catalytic bed in the upper fluidized bed. To accomplish this a literature study has been made. This resulted in finding the key parameters of gas and bed material mass flow that determines if a fluidized bed is formed or not. The literature study also showed a positive catalytic effect with decreased size of the catalytic particles. The experimental setup was designed to check for the two anomalies where the gasifying velocity and the bed material mass flow rate was as high and low as possible. A middle ground was used as another point of interest. The objective was then to incrementally minimize the particle size of the internal catalytic bed. The results showed that the internal catalytic bed could be present in the staged fluidized bed while maintaining the fluid dynamics, but only if the gas velocity was high enough. The produced syngas with the catalytic bed present did not show any results that indicates if the effect was positive or not.

Place, publisher, year, edition, pages
2015. , p. 37
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:miun:diva-25506OAI: oai:DiVA.org:miun-25506DiVA, id: diva2:840366
Subject / course
Energy Technology EN2
Educational program
Energy Engineering TENIG 180 higher education credits
Supervisors
Examiners
Available from: 2015-07-08 Created: 2015-07-08 Last updated: 2015-07-08Bibliographically approved

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