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Drying of powdery materials in a pulsed fluid bed dryer

Journal Article · · Drying Technology
Drying of recycled polypropylene powder was studied experimentally in a laboratory pulsed fluid bed dryer (PFB) with relocated air stream. It was proven that fluidization of fine particles having a large specific surface area and a broad size distribution is technically feasible when using the composite supporting grid. Drying and hydrodynamic characteristics for a pulsed fluid bed of fine particles are found to be similar to the ones for coarse particles. Equations for minimum pulsed fluidization velocity, pressure drop, and surface and volumetric heat transfer coefficients are given.
Research Organization:
Wroclaw Univ. of Economics (PL)
OSTI ID:
20006234
Journal Information:
Drying Technology, Journal Name: Drying Technology Journal Issue: 7-8 Vol. 17; ISSN DRTEDQ; ISSN 0737-3937
Country of Publication:
United States
Language:
English

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