Catalytic methods for improved coal liquefaction and hydrotreating: Quarterly report No. 6 for the period December 23, 1986 through March 22, 1987

Technical Report · Wed Apr 01 04:00:00 EST 1987

OSTI ID:6623532

Hirschon, A S; Laine, R M; Wilson, Jr, R B

During this quarter we synthesized two new ruthenium catalysts. The first catalyst, Ru/sub 3/(CO)/sub 12/ supported on alumina, Ru(OM), was prepared to compare the reactivity of supported ruthenium carbonyl with that of bulk ruthenium, and with the RuMo(OM) catalyst prepared last quarter. The second catalyst was a RuCoMo catalyst prepared from the promotion of sulfided Harshaw CoMo with ruthenium trichloride, rather than with ruthenium carbonyl, which was used in previous preparations. We found that the ruthenium supported on alumina, Ru(OM), had the same activity and selectivity as bulk ruthenium, and was totally poisoned by hydrogen sulfide, as was the bulk metal. We also found that the RuCoMo prepared by ruthenium trichloride promotion had a similar activity and selectivity as the RuCoMo catalyst prepared by ruthenium carbonyl impregnation. Comparisons of the CoMo and RuCoMo catalysts were made on the HDN of decahydroquinoline (DHQ). We found in both cases the HDN product was almost exclusively propylcyclohexane, showing that the formation of propylbenzene during the HDN of quinoline must come from propylaniline or benzotetrahydroquinoline. We also compared the surface areas and pore sizes of the Harshaw CoMo and promoted RuCoMo catalysts and found them very similar. This quarter we presented a summary of our work on our use of organometallic precursors and promoted RuCoMo catalysts at the Denver ACS meeting. 4 refs.

• Research Organization: SRI International, Menlo Park, CA (USA)
• DOE Contract Number: FG22-85PC80906
• OSTI ID: 6623532
• Report Number(s): DOE/PC/80906-6; ON: DE87009299
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COBALT
CONSUMPTION RATES
DENITRIFICATION
ELEMENTS
FLUIDS
HYDROGEN
HYDROGENATION
LIQUEFACTION
LIQUIDS
METALS
MOLYBDENUM
NITROGEN
NONMETALS
OXYGEN
PLATINUM METALS
REMOVAL
RUTHENIUM
STRUCTURAL MODELS
SULFUR
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS