Methane hydrate crystallization mechanism from <i>in‐situ</i> particle sizing

Herri, Jean‐Michel; Pic, Jean-Stéphane; Gruy, Frédéric; Cournil, Michel

doi:10.1002/aic.690450316

Cited by 103 publications

(158 citation statements)

References 30 publications

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“…The aggregation constant, k 3 , found to be optimal produces relatively low collision efficiencies of the 4th order of magnitude which are similar to the values obtained by Herri et al 13 for methane hydrate particles in a stirred vessel in water. The breakage constant, k 4 , and parameter b are similar to those obtained by L. Wang et al 27 in their study of the aggregation and breakage of latex spheres in laminar Couette flow.…”

Section: Aggregation and Breakagesupporting

confidence: 80%

“…Equations 11 and 15 may be integrated assuming some mathematical expression for f(r,t). In the present model, we use the resulting expressions for A i and B i obtained by Herri et al 13 assuming that f(r) is a linear function of r in the form f(r) ¼ C 1 (1 À r/C 2 ). The expression for the i'th moment of the aggregation term, A i thus is:…”

Section: Aggregation and Breakagementioning

confidence: 98%

“…These parameters will be different from those used in agitated vessels in the literature (see e.g., Ref. 13), and will involve formulating a two-compartment model to account for the very different flow fields in the pump and in the pipeline itself.…”

Section: Objectives and Over-all Approachmentioning

confidence: 99%

“…Nucleation and growth rates may be related to the hydrate former molar concentration according to Herri et al 13 and Hounslow et al 8 For the nucleation rate:…”

Section: Model Description Nucleation and Growthmentioning

confidence: 99%

“…Herri et al 13 presented PBM-simulations for methane hydrate formation and further development in a water-gas stirred vessel. Hydrate particle nucleation and breakage were considered in combination with other governing mechanisms for the particle size evolution: secondary nucleation, aggregation, breakage, and attrition.…”

Section: Introductionmentioning

confidence: 99%

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Population balance model for nucleation, growth, aggregation, and breakage of hydrate particles in turbulent flow

2009

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This article describes a computational model for the size evolution of hydrate particles in a pipeline-pump system with turbulent flow. The model is based on the population balance principle, and the simulation results were validated with data from an experimental study of a flow loop containing hydrate particles reported in the literature. It is found that the particle size is significantly influenced by aggregation and breakage, related to shear in the flow, and that these effects are comparable to those of growth and nucleation, related to diffusional processes. Two different approaches for hydrate growth and nucleation, one of continuous nucleation during the process and one of only an initial nucleation-pulse, were used. This was done to compare the aggregation and breakage parameters which come out when fitting the models output to experiment. These two approaches are found to give rise to similar aggregation/ breakage parameters, lending credence to the pbm-based modeling. V

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Section: Aggregation and Breakagesupporting

confidence: 80%

Section: Aggregation and Breakagementioning

confidence: 98%

Section: Objectives and Over-all Approachmentioning

confidence: 99%

“…Nucleation and growth rates may be related to the hydrate former molar concentration according to Herri et al 13 and Hounslow et al 8 For the nucleation rate:…”

Section: Model Description Nucleation and Growthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations