Hydrocracking prehydrogenated shale oil
Shale oils retorted from the Green River formation of Colorado, Utah, and Wyoming usually are heavy, viscous oils that contain little material boiling in the gasoline range. The higher percentages of sulfur, nitrogen, and oxygen compounds render the rare oil unsuitable for refining to high quality motor oils by conventional refining processes. Recycle hydrocracking at 3,000-lb pressure was shown to produce a high yield of naphtha with low sulfur and nitrogen content, but the pressure greatly exceeded the capacity of ordinary refining equipment. Once-through hydrogenating coker distillate fractions at 1,100 and 1,500-lb pressure produced products of poorer quality and in lower quantity than were obtained in the 3,000-lb operation. Hydrocracking of prehydrogenated shale oil (shale oil hydrogenated at mild conditions prior to hydrocracking) at pressures of 1,000 and 1,500 psi, was shown to give greater yield of naphtha as percent of feed, greater yield of naphtha as percent conversion of high boiling material, and better elimination of nitrogen and tar bases from the liquid products.
- Research Organization:
- US Bureau Mines; US Bureau Mines
- OSTI ID:
- 6582377
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 11:2; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
040404* -- Oil Shales & Tar Sands-- Purification
CHEMICAL REACTIONS
COLORADO
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GREEN RIVER FORMATION
HIGH PRESSURE
HYDROCRACKING
HYDROGENATION
MEDIUM PRESSURE
MINERAL OILS
NORTH AMERICA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
ROCKY MOUNTAIN REGION
SHALE OIL
THERMOCHEMICAL PROCESSES
USA
UTAH
WYOMING