Catalytic cracking of a Wilmington vacuum oil gas and selected hydrotreated products: Topical report
The catalytic cracking of a Wilmington vacuum gas oil and the products from mild hydrotreating and severe hydrotreating of this gas oil was evaluated over a low metal equilibrium catalyst in a microconfined bed unit (MCBU). Two levels of catalytic cracking severity were evaluated for these three samples. The performance and product analysis showed that hydrotreating improves the quality of catalytic cracker feedstock and the resultant products. The results also indicated that a level of hydrotreating exists above which the quality of the liquid products and the yields of coke and heavy oil are not affected significantly by the severity of the catalytic cracking process. As expected, the sulfur and nitrogen content of the liquid products (gasolines, light cycle oil, and heavy cycle oil) were found to decrease as the severity of the feed hydrotreating increased. The distribution of sulfur and nitrogen in the liquid products was found to be independent of cracking conditions or product yields for a given level of hydrogenation. Analysis of the gas products shows that the degree of hydrogen transfer increases with the severity of hydrogenation. As cracking severity increases, the apparent degree of hydrogen transfer decreases, and the concentration of olefinic compounds increases relative to the saturated compounds. In the future, these results will be compared to similar results from a Mayan vacuum gas oil. 10 refs., 17 figs., 10 tabs.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 6669745
- Report Number(s):
- NIPER-210; ON: DE87001234
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
API GRAVITY
BENCH-SCALE EXPERIMENTS
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COKE
COMPARATIVE EVALUATIONS
CONSUMPTION RATES
CRACKING
DATA
DEACTIVATION
DECOMPOSITION
DENSITY
DEPOSITION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GAS OILS
GASOLINE
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
HYDROGEN TRANSFER
HYDROGENATION
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
MOLECULAR WEIGHT
NONMETALS
NUMERICAL DATA
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PYROLYSIS
THERMOCHEMICAL PROCESSES
VISCOSITY
YIELDS
ZEOLITES