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Titolo:
Effect of natural surfactants released from athabasca oil sands on air holdup in a water column
Autore:
Zhou, Z; Xu, ZH; Masliyah, J;
Indirizzi:
Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada Univ Alberta Edmonton AB Canada T6G 2G6 ngn, Edmonton, AB T6G 2G6, Canada
Titolo Testata:
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
fascicolo: 4, volume: 78, anno: 2000,
pagine: 617 - 624
SICI:
0008-4034(200008)78:4<617:EONSRF>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERFACIAL-TENSION; BUBBLE COALESCENCE; BITUMEN; SOLIDS;
Keywords:
surfactants; bitumen; oil sands; air holdup; water column;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Masliyah, J Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada Univ Alberta Edmonton AB Canada T6G 2G6 n, AB T6G 2G6, Canada
Citazione:
Z. Zhou et al., "Effect of natural surfactants released from athabasca oil sands on air holdup in a water column", CAN J CH EN, 78(4), 2000, pp. 617-624

Abstract

Natural surfactants released from Athabasca oil sands are a crucial component in water-based bitumen extraction processes. The effect of natural surfactant released from estuarine and marine oil sands on air holdup was investigated using a water column. The air holdup in the resultant supernatant of the conditioned oil sands slurry was found to be much higher than that inde-ionized water. A further increase in air holdup was observed with the supernatant obtained from the oil sands slurry conditioned with caustic. Aging of the ore prior to bitumen extraction caused an increase in air holdup. The presence of small amount of fine solids in the supernatant resulted ina higher air holdup for all the cases studied. The present study shows that the higher air holdup and poorer processibility of marine ores, compared with estuarine ores, could be accounted for by the release of larger amountof surface active species and the presence of more fine clays in the ores.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 06:53:35