Banca de DEFESA: MILLENE CAROLINE ALBINO DE OLIVEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MILLENE CAROLINE ALBINO DE OLIVEIRA
DATA : 26/02/2018
HORA: 14:00
LOCAL: AUDITÓRIO DO NUPEG
TÍTULO:

“STUDY OF THE ENHANCED OIL RECOVERY VIA INJECTION OF THE RHAMNOLIPID BIOSURFACTANTE PRODUCED FROM PSEUDOMONAS AERUGINOSA”

PALAVRAS-CHAVES:

Enhanced oil recovery; biosurfactant; rhamnolipid; Pseudomonas aeruginosa

PÁGINAS: 73
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Química
RESUMO:

The continuous need for increased production of hydrocarbons makes the development of techniques to produce more oil from reservoirs a matter of fundamental importance. In that context, the enhanced oil recovery (EOR) through surfactant flooding works by lowering the interfacial tension between water and oil, improving the displacement of the latter out of the reservoir. The present work aims to characterize the rhamnolipid biosurfactant, produced from a strain of the Pseudomonas aeruginosa bacteria, and to assess its utilization in the EOR process. The rhamnolipid characterization involved the determination of its critical micelle concentration (CMC), and also the behaviour caused by the influence of pH and salinity over it. The EOR process included three oil samples, with API degree range of 25-30, and three biosurfactant concentrations, of 30, 50 and 100% above the cmc. The results demonstrated that biosurfactant flooding not only presents itself as a sustainable alternative to synthetic surfactants by being biodegradable, but is also capable of successfully increase the recovery factor of the oil production process post water injection, presenting a range of enhanced recovery factors from 2.5 up to 9.3%, where the best results were achieved for the more viscous oil samples and for higher rhamnolipid concentrations.

MEMBROS DA BANCA:
Presidente - 1308273 - EDUARDO LINS DE BARROS NETO
Externo à Instituição - FRANCISCO KLEBSON GOMES DOS SANTOS - UFERSA
Externo à Instituição - JOSELISSE SOARES DE CARVALHO SANTOS - IFRN
Externo ao Programa - 1531209 - VANESSA CRISTINA SANTANNA