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Simulation of a Continuous Plug Flow Vibrated Fluidised Bed Drier
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Transport Phenomena. (Drying)
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Transport Phenomena. (Drying)
2010 (English)In: COMCAPLA 2010 / [ed] Manuela Cruz-Díaz, Mexico City, Mexico: National Polytechnic Institute (IPN) , 2010, SIM-106 p.Conference paper, Published paper (Refereed)
Abstract [en]

The drying of solids in a continuous plug flow vibrated fluidised bed drier was studied by simulations. A simple equipment model described the process. The model considered the drying of a thin layer of particles wetted with a multicomponent mixture. Particles were assumed to move forward, well mixed in the direction of the airflow and only the longitudinal changes of liquid content, liquid composition and particle temperature along the drier were considered. The changes of gas composition and temperature after passing through the bed of particles were calculated by global balances in each volume element defined by a space step along the drier. Solids wetted with a liquid mixture: ethanol-2-propanol-water was used in the calculations. Simulations using the present model gave a good insight into the selectivity of the drying process and predicted correctly volatile retention during drying. The model was then used to examine the effect of the vibration intensity on the volatile retention.

Place, publisher, year, edition, pages
Mexico City, Mexico: National Polytechnic Institute (IPN) , 2010. SIM-106 p.
Keyword [en]
Volatile retention; Vibration intensity; Drier simulation
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-84841OAI: oai:DiVA.org:kth-84841DiVA: diva2:499674
Conference
1st Latin-American Multidisciplinary Congress of Applied Sciences. Granada, Nicaragua. November 9-12, 2010.
Note

QC 20120418

Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2016-08-18Bibliographically approved

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