Nitrogen compounds in Colorado shale oils
The nitrogen contents of Colorado shale oils, produced in internally fired retorts, approximate 2% by weight for the oils that have been investigated. The quantity of nitrogen in the oils depends on the conditions in the retort producing the oil. About 2/3 of the nitrogen compounds in the naphtha are pyridines. The other 1/3 is predicted to be C-alkylated pyrroles. A naphtha, produced by destructive hydrogenation of a crude shale oil, contained both pyridines and anilines. A heavy gas-oil fraction consisted of 40% nitrogen compounds. These were one-, two-, and multi-ring compounds. For the multi-ring compounds, the data suggest more than one heteroatom per molecule. Porphyrins are shown to be present in shale oil and to be changed from those present in the oil shale. Groennings' extraction is a satisfactory method for concentration of the porphyrins.
- Research Organization:
- Wyoming Univ.
- OSTI ID:
- 6219261
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 10:2; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COLORADO
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC AGES
MATERIALS
MINERAL OILS
NORTH AMERICA
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
RESERVOIR ROCK
RETORTING
ROCKY MOUNTAIN REGION
SHALE OIL
THERMOCHEMICAL PROCESSES
USA