Banca de QUALIFICAÇÃO: IZABELLA REGINA DE SOUZA ARAÚJO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : IZABELLA REGINA DE SOUZA ARAÚJO
DATA : 02/08/2018
HORA: 14:00
LOCAL: Auditório do NUPEG
TÍTULO:

Equilibrium of phases and volumetric behavior of aqueous systems containing CO2, ethylene glycol, NaCl and CaCO3 under the conditions of exploitation of natural gas

PALAVRAS-CHAVES:

Phase balance, MEG, Density, Salts.

PÁGINAS: 40
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Química
SUBÁREA: Processos Industriais de Engenharia Química
ESPECIALIDADE: Processos Inorgânicos
RESUMO:

The exploitation of gas in deep water in Brazil brings challenges due to the high pressures,

 the high content of CO2 present and CaCO3 carried from the carbonate formation to the production fluids.

 The MEG regeneration process, used as a hydrate inhibitor, also presents a field of study regarding the solubility

 and precipitation of the salts (CaCO3 and NaCl). In this context, this project proposes to set up an experimental

 apparatus for the evaluation of phase equilibrium in mixtures that replicate the operating conditions of the gas

 exploration in deep waters, evaluating parameters such as density and solubility at temperatures of 20 and 50°C

 and pressures from 70 to 130 bar. Such apparatus consists of: Reactor Parr 4561; Densimeter Anton Paar 4200M;

 Syringe pump; and Thermostatic baths. The present study intends to evaluate the binary system (CO2 and water),

 ternary mixtures (CO2, water and NaCl, and CO2, water and MEG) and multicomponent mixtures (CO2, water, MEG,

 NaCl; CO2, water, MEG, NaCl and CaCO3). The a priori experimental apparatus was already assembled, and in order

 to evaluate its operation, preliminary experiments were performed at 20 ° C with CO2, obtaining results with

 density deviations of 0.23% when compared with the literature. Then experiments with CO2 and water binary

 were performed, whose deviation of the results was 0.076% when comparing with the literature.

MEMBROS DA BANCA:
Presidente - 1149554 - OSVALDO CHIAVONE FILHO
Interno - 1670497 - HUMBERTO NEVES MAIA DE OLIVEIRA
Externo à Instituição - ANDERSON ALLES DE JESUS - UFRN
Externo à Instituição - DANNIELLE JANAINNE DA SILVA - UFRN