Fluence of thermal processing on the properties of Cold Lake asphaltenes. Part II. Effect of steam treatment during oil recovery

Conference · Tue Sep 01 04:00:00 EDT 1981 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6463880

Gould, K A

A detailed investigation of the properties of cold boiled (i.e. produced without the use of high temperature steam) Cold Lake crude asphaltenes was undertaken. (Asphaltenes were removed from the crude oil using n-heptane; in addition, they were dissolved in toluene and the solution was centrifuged to remove mineral matter). These crude compounds have been compared to steam stimulated Cold Lake crude and Cold Lake vacuum residuum asphaltenes by elemental analysis, vapor pressure osmometry, gel permeation chromatography, ir spectroscopy, nmr spectroscopy and thermogravimetric analysis. Results indicate that the steam stimulated procedure produces significant changes in all of the measured characteristics except for mol wt. Changes include a decreased H/C ratio, alterations in the carbon skeleton and functional groups, an increased % of aromatic carbon and a decreased in volatile compounds produced during thermogravimetric analysis. Polymerization leading to high mol wt materials was not observed. Apparently, cold boiled asphaltenes are much more prone to yield volatile matter than are the corresponding heat-treated asphaltenes. 5 figures, 3 tables.

• Research Organization: Exxon Research and Engineering Co., Linden, NJ
• OSTI ID: 6463880
• Report Number(s): CONF-810813-(Vol.2)
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 26:4
• Country of Publication: United States
• Language: English

Related Subjects

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ALBERTA
ALKANES
ASPHALTENES
ASPHALTS
BITUMENS
CANADA
CENTRIFUGATION
CHEMICAL ANALYSIS
CHEMICAL PROPERTIES
CHROMATOGRAPHY
COLD LAKE DEPOSIT
COLD-WATER PROCESSES
COMPARATIVE EVALUATIONS
DATA
EXPERIMENTAL DATA
FLUID INJECTION PROCESSES
GEOLOGIC DEPOSITS
GRAVIMETRIC ANALYSIS
HEPTANE
HYDROCARBONS
INFORMATION
INFRARED SPECTRA
MEASURING METHODS
MOLECULAR WEIGHT
NMR SPECTRA
NORTH AMERICA
NUMERICAL DATA
OIL SAND DEPOSITS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PROCESSING
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECTRA
TAR
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE