Experimental evaluation and computational simulation of the dissolution of sodium chloride particles in a brine fluid flow

Cláudia Miriam Scheid, Wanderson Patrão, Renata Silva, Kristoffer Harr Martinsen, Sérgio da Cruz Magalhães, Luis Américo Calçada

Resumo


A mathematical model to predict the dissolution of salt particles suspended in a brine flow is provided. The model consists of a system of three partial differential equations (PDE) based on mass conservation of salt dissolved in the fluid phase, on mass conservation of salt particles in the solid phase and on the overall conservation of energy. A fluid flow experimental unit was built to determine the kinetics of the dissolution of salt particles in a brine flow. Fluid samples free from particled solid material retrieved through the flow line at several predefined points were collected to determine salt dissolution profile. The global convective mass transfer coefficient was evaluated based on the experimental data. Simulations validated the mathematical model and relative deviations between experimental data and simulations were less than 10%.

 


Palavras-chave


mathematical modeling; salt dissolution; mass transfer coefficient; pre-salt layer; fluid flow

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DOI: http://dx.doi.org/10.4025/actascitechnol.v36i2.18355





ISSN 1806-2563 (impresso) e ISSN 1807-8664 (on-line) e-mail: actatech@uem.br

  

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