Turbulent flow of hydrates in a pipeline of complex configuration

Abstract The present paper describes an experimental study of Freon R11 hydrate transport in a turbulent flow through a model-scale pipeline of complex configuration. The frictional pressure losses as a function of the hydrate phase concentration were determined, and isokinetic sampling was performed for the determination of mean particle size. The experimental rig was modelled using an Eulerian–Eulerian CFD model which was validated with the experimental results. The detailed flow patterns in the pipeline and some other process parameters were determined by the CFD simulations, elucidating further the flow of the slurry in the pipeline. In addition the influence of gravity in densifying the particles under conditions of low Reynolds numbers was studied.

[1]  D. Gidaspow.  Multiphase Flow and Fluidization: Continuum and Kinetic Theory Descriptions , 1994 .

[2]  F. Kiyono,et al.  CFD and experimental study on methane hydrate dissociation Part I. Dissociation under water flow , 2007 .

[3]  R. D. Vigil,et al.  CFD simulation of aggregation and breakage processes in laminar Taylor-Couette flow. , 2005, Journal of colloid and interface science.

[4]  Shuanshi Fan,et al.  Experimental study on flow characters of CH3CCl2F hydrate slurry , 2008 .

[5]  J. Herri,et al.  Methane hydrate crystallization mechanism from in‐situ particle sizing , 1999 .

[6]  A. Macchi,et al.  Gas–liquid mass transfer in a slurry bubble column operated at gas hydrate forming conditions , 2009 .

[7]  Noel De Nevers.  Fluid mechanics for chemical engineers , 1980 .

[8]  J. Herri,et al.  Rheological study of TBAB hydrate slurries as secondary two-phase refrigerants , 2005 .

[9]  Boris V. Balakin,et al.  Population balance model for nucleation, growth, aggregation, and breakage of hydrate particles in turbulent flow , 2009 .

[10]  Boris V. Balakin,et al.  Turbulent flow of freon R11 hydrate slurry , 2010 .

[11]  Lars Henrik Gjertsen,et al.  Measured permeability and porosity of R11 (CCl3F) hydrate plugs , 1998 .

[12]  P. Bahri,et al.  Polymer flocculation of calcite: Experimental results from turbulent pipe flow , 2006 .

[13]  M. Hounslow,et al.  A discretized population balance for nucleation, growth, and aggregation , 1988 .

[14]  Carolyn A. Koh,et al.  Hydrate formation from high water content-crude oil emulsions , 2008 .

[15]  Malcolm R. Davidson,et al.  An Eulerian-Eulerian Model for the Dispersion of a Suspension of Microscopic Particles Injected Into a Quiescent Liquid , 2009 .

[16]  Y. Peysson,et al.  Rheological and Flow Properties of Gas Hydrate Suspensions , 2004 .

[17]  Joel H. Ferziger,et al.  Computational methods for fluid dynamics , 1996 .

[18]  M. Sommerfeld,et al.  Multiphase Flows with Droplets and Particles , 2011 .

[19]  D. Joseph,et al.  Modeling and numerical simulation of particulate flows by the Eulerian–Lagrangian approach , 2001 .

[20]  S. Ergun.  Fluid flow through packed columns , 1952 .

[21]  Carolyn A. Koh,et al.  Clathrate hydrates of natural gases , 1990 .

[22]  Michael T. Klein,et al.  A Novel Laboratory Scale Reactor System for Studying Fuel Processes from the Initial Stages. 2. Detailed Energy and Momentum Balances , 1994 .

[23]  H. Wagner,et al.  Hydrodynamic simulations of laboratory scale bubble columns fundamental studies of the Eulerian–Eulerian modelling approach , 1999 .

[24]  T. S. Lee,et al.  Numerical Flow Simulation in a Centrifugal Pump at Design and Off-Design Conditions , 2007 .

[25]  Warren Viessman,et al.  Water supply and pollution control , 1985 .

[26]  M. Abdi,et al.  A CFD-Based Model to Locate Flow-Restriction Induced Hydrate Deposition in Pipelines , 2008 .

[27]  Ron Darby.  Correlate pressure drops through fittings , 1999 .