Date of Graduation
2000
Document Type
Thesis
Degree Type
MS
Committee Chair
Hisashi O. Kono
Abstract
This work quantitatively characterizes the flow and mixing properties of aerated bulk fine powders between the minimum fluidization and minimum bubbling velocities (Umf < U < Umb). In order to accomplish this characterization, the viscosity of the emulsion phase was measured using the Maxwell’s model for the rheological behavior of complex bodies along with the set of rheological parameters proposed by Kono et al (1994). A unique property of the bulk fine powder called the relaxation time (t) was measured experimentally and this property was combined with another rheological parameter called the plastic deformation coefficient (Y) to give the viscosity of the emulsion phase as m = Yt. SECTION II This work describes the first homogeneous formation and decomposition of methane gas hydrates within several different synthetic sediments by using a highpressure batch reaction system. The pressure of the formation reaction was varied in the range of 6.8 – 13.6 MPa while the temperature was maintained constant at 273.5 K Decomposition of hydrate was accomplished through controlled depressurization starting at a pressure of 2.7 MPa, maintaining the temperature constant at 273.5 K. Overall reaction order, both for the formation and decomposition were also determined.
Recommended Citation
Narasimhan, Sridhar, "Dynamic behavior characterization of fine powders consisting of a homogeneous emulsion, and, Synthesis and decomposition of methane gas hydrate: A reaction engineering study." (2000). Graduate Theses, Dissertations, and Problem Reports (ETD). 10834.
https://researchrepository.wvu.edu/etd/10834