HYDRATE FILM GROWTH MODEL - MASS AND ENERGY TRANSPORT FOR METHANE AND CARBON DIOXIDE HYDRATES

Luiz Henrique Accorsi Gans¹; Guilherme Mühlstedt¹; Paulo Henrique Dias dos Santos¹; Moises Alves Marcelino Neto¹; Rigoberto Eleazar Melgarejo Morales¹; Amadeu K. Sum²

¹ Federal University of Technology - Paraná; ² Colorado School of Mines

doi:10.20906/CPS/COB-2015-1083

Resumo

The study of the clathrate-hydrate formation processes in pipelines is very important to the oil and gas industry because these structures can stop production and it represents a safety risk due to the pressure build-up in the pipelines. Several research groups have proposed different models to predict how a hydrate film grows. However, the models based only on heat transfer could not explain satisfactorily the experimental data because the gas consumption was disregarded. So, in order to clarify the deposition phenomenon, the current work presents a mathematical model for the uncoupled mass and energy balance problem for CO2 and CH4 hydrates.

Palavras-chave: CO2 and CH4 Hydrates; Film Growth; Mathematical Modeling; Heat and Mass Transfer