Hydrotreating for re-refined lubricating oil. Final technical report. [HDS-20A (Al/sub 2/O/sub 3/ with CoO and MoO/sub 3/); HT-500 (Al/sub 2/O/sub 3/ with NiO and MoO/sub 3/)]
The BERC Process for re-refining lubricating oil uses hydrotreating as a process step in place of a conventional acid-clay operatin. While hydrotreating is a well-established unit process for petroleum and many other liquid hydrocarbons, very little experimental work is available on re-refined lubricating oil. Eight commercial hydrotreating catalysts were screened over the temperature range of 550 to 750/sup 0/F and over the pressure range of 500 psig to 700 psig. These materials were tested in a Autoclave spinning-basket reactor using a liquid hourly weight space velocity (LHWSV) of approximately 8.0 cc/gm.cat.hr. and hydrogen flow sufficient to maintain saturated liquid. Using color change (sulfur wt %) and viscosity (both 100/sup 0/ and 210/sup 0/F) as the measure of catalysts performance, two catalysts-American Cyanamide HDS-20A and Harshaw HT-500 were selected for trickle-bed operation experiments. The HDS-20A and HT-500 catalysts were operated in a trickle-bed reactor system for 238 hours and 407 hours, respectively. The results of these experiments were correlated in terms of the weight percent sulfur present as a function of temperature and pressure of operation and the LHWSV. Initial examination of the catalysts after the trickle-bed experiments showed residual hydrocarbons on the surface. Washing with acetone removed substantially all this residual material. Elemental analysis of the remaining material showed carbon. 47 figures, 28 tables.
- Research Organization:
- New Mexico State Univ., Las Cruces (USA). Dept. of Chemical Engineering
- DOE Contract Number:
- AS19-80BC10332
- OSTI ID:
- 6496589
- Report Number(s):
- DOE/BC/10332-1; ON: DE83009351
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM OXIDES
CATALYTIC EFFECTS
CATALYSTS
COMPARATIVE EVALUATIONS
PERFORMANCE TESTING
COBALT OXIDES
HYDROGENATION
LUBRICATING OILS
COLOR
RECYCLING
REFINING
VISCOSITY
MOLYBDENUM OXIDES
NICKEL OXIDES
WASTE OILS
EXPERIMENTAL DATA
FLOWSHEETS
HIGH TEMPERATURE
MEDIUM PRESSURE
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
DATA
DIAGRAMS
INFORMATION
LUBRICANTS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NUMERICAL DATA
OILS
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANOLEPTIC PROPERTIES
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PROCESSING
TESTING
TRANSITION ELEMENT COMPOUNDS
020800* - Petroleum- Waste Management