2019 AIChE Annual Meeting
(140c) Hydrodynamic Analysis of Spouting Characteristics in a Slot-Rectangular Spouted Bed Reactor
Authors
2019 AIChE Annual Meeting
Topic/Group: Fluidization and Fluid-Particle Systems
Tentative Session: Experimental
Investigation of Fluidization Processes
Title: Hydrodynamic
Analysis of Spouting Characteristics in a Slot-Rectangular Spouted Bed Reactor
Authors:
Steven L. Rowan: Steven.Rowan@netl.doe.gov
Ronald W. Breault: Ronald.Breault@netl.doe.gov
Narasimhan Soundarrajan: Narasimhan.Soundarrajan@netl.doe.gov
Jingsi Yang: Jingi.Yang@netl.doe.gov
Samuel Bayham: Samuel.Bayham@netl.doe.gov
Key Words:
Fluidization, Spouting, Reactors, Energy
Abstract:
An investigation of the dynamic
behavior of a spouted bed reactor being designed at the U.S. Department of
Energys National Energy Technology Laboratory is currently being
conducted. Previously, high speed video and
time series pressure data analysis was used to identify and characterize
several internal and external spouting regimes in a transparent, small scale
cold flow model. This paper presents an
analysis of the effects of high operating temperatures upon the hydrodynamics
of these varied spouting regimes via examination of pressure data, to provide a
better understanding of, and ability to recognize similar spouting conditions
in a non-transparent, high temperature spouted bed reactor. The time series
pressure data are analyzed via classical statistical methods, wavelet
extraction, and recurrence quantification analysis techniques. The tests were
conducted with 14/40 mesh (~400-1400 µm) Duralum
AB hollow alumina spheres in a 1 x 4 transparent cold flow spouted bed and a
2 x 8 non-transparent high temperature spouted bed reactor. The results of
this analysis show that it is possible to utilize data obtained from the cold
flow unit to characterize the spouting dynamics occurring in the high
temperature reactor unit.