Oxygen compounds in the Irati Shale oil
- Federal Univ. of Rio de Janeiro, COPPE/EQ/UFRJ, C.P. 68502, 21945 Rio de Janeiro (Brazil)
- Inst. of Chemistry/UFRJ, Centro de Technologia, Bloco A, Sala A-603, 21901 Rio de Janeiro (Brazil)
This paper reports the principal alkylphenols (4 wt %) and carboxylic acids (1.2 wt %) present in the Irati Shale oil S[tilde a]o Mateus do Sul, Paran acute (a) by means of a combination of gas chromatography-mass spectrometry (GC-MS) and retention time-data of standard compounds. it appears that the phenols are essentially monocyclic in nature with methyl groups as the main substituents. Carboxylic acids are principally linear and predominantly of the range C[sub 14]--C[sub 20]. After catalytic hydrotreatment (400 [degrees]C, 125 atm) high hydrodeoxygenation levels were obtained (87 wt %) for phenols and carboxylic acids, although the relative distribution of the various compounds was not significantly changed. Oxygen is present in the carbonaceous residue as several functionalities xanthenes, phenols, aryl ethers, carbonyl compounds, and furanic structures. The remaining acidic compounds may cause instability of the treated shale oil.
- OSTI ID:
- 7172218
- Journal Information:
- Industrial and Engineering Chemistry Research; (United States), Vol. 31:4; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SHALE OIL
CHEMICAL COMPOSITION
GAS CHROMATOGRAPHY
HYDROTORTING PROCESS
MASS SPECTROSCOPY
CARBOXYLIC ACIDS
CATALYTIC CRACKING
HYDROCRACKING
PHENOLS
AROMATICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
MINERAL OILS
OILS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
SEPARATION PROCESSES
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
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