摘要:

Differences in oil sands processability and extraction yields can be dependent upon many factors including the composition of the mineral components and the organic complexes that are associated with certain minerals. These mineral-organic associations help provide the bridge which leads to carry over of bitumen with the tailings as well as carry over of water and mineral matter with the product. The nature of the organic component of clay-organic complexes extracted from various streams in an oil sands recovery process is discussed in relation to the stability of both water-in-oil and oil-in-water emulsions formed. These samples have been studied with nuclear magnetic resonance (NMR), scanning electron microscopy (SEM) as veil as with other techniques such as interfacial tension measurements.

ISSN:0884-3759    

DOI:10.1080/08843758908962263

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

The ASVAHL Analytical Group has worked for four years. The main objectives were :

ISSN:0884-3759    

DOI:10.1080/08843758908962264

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

The oxidation of sulphide minerals during storage of Athabasca oil sands causes solubilization of inorganic salts which affect recovery of bitumen during hot water extraction. DLVO and Ionizable Surface Group Model theories accurately predict that the level of soluble salts produced is sufficient to cause coagulation of the fine particles during the process which leads to a deterioration in froth quality and loss of bitumen recovery. The rate of aging is specific to each oil sand but storage of oil sands under an inert atmosphere in air-tight container at sub-zero temperatures will minimize oxidation.

ISSN:0884-3759    

DOI:10.1080/08843758908962265

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Microscopic characterization of oil sands emulsions can be important in the prediction of processing characteristics and process yields in the extraction of oil from oil sands. The size distribution of the emulsion can determine how efficiently the oil can be separated from the water and by what means: mechanically or chemically. In addition, it is possible to characterize the nature of the dispersed phase by using fluorescence behaviour under an optical microscope or via x-ray analysis with a scanning electron microscope. In certain cases it is also possible to characterize the interface between the dispersed and the continuous phases. This paper presents results from our laboratory using microscopic techniques and illustrates their utility, not only for determining the morphology of these economically important emulsions, but also to characterize the composition of the interface itself.

ISSN:0884-3759    

DOI:10.1080/08843758908962266

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Future energy demands will likely cause increased activity towards the recovery of heavy oil using non-conventional means. Most non-conventional attempts to recover Saskatchewan's heavy oil resources have utilized thermal techniques.

ISSN:0884-3759    

DOI:10.1080/08843758908962267

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

A review is presented of the heavy oil upgrading industry in Canada. Up to now it has been based on the processing of bitumen extracted from oil sands mining operations at two sites, to produce a residue-free, low sulphur, synthetic crude. Carbon rejection has been the prime process technology with delayed coking being used by Suncor and FLUID COKING at Syncrude.

ISSN:0884-3759    

DOI:10.1080/08843758908962268

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Sunnyside (Utah) tar sand was subjected to programmed temperature pyrolysis and the volatile products were detected by tandem on-line mass spectrometry (MS/MS) in real time analyses. A heating rate of 4°C/min from room temperature to 900°C was employed.

ISSN:0884-3759    

DOI:10.1080/08843758908962269

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Heavy oil produced under primary and fire flood conditions was fractionated and analyzed to determine the changes occurring in the oil as a result of the recovery process. Oil produced under primary conditions showed a gradual increase in density, viscosity and other properties over time indicating fractionation during flow through the formation

ISSN:0884-3759    

DOI:10.1080/08843758908962270

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Ash reduction of the cokes and fly ash samples derived from the Athabasca oil sands bitumen was attempted by dissolving the mineral matter in acids. The samples used for this investigation included Syncrude fluid coking coke, Suncor delayed coking coke and the two fly ash samples obtained from the combustion of these cokes. All samples were analyzed for C,H,N,0 and S before and after acid demineralization and the analyses results compared. Further, the ash from the samples before and after acid demineralization was analyzed for silica, alumina, iron, titanium, nickel and vanadium to assess the acid leaching of these elements. CP/ MAS,13C NMR spectroscopic study of the demineralized coke and fly ash samples was also attempted

ISSN:0884-3759    

DOI:10.1080/08843758908962271

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

ISSN:0884-3759    

DOI:10.1080/08843758908962272

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor