New catalysts for hydrotreating coal liquids
The cost of hydrotreating coal liquids or heavy crudes is considerably higher than for light crudes because of the significantly higher amounts of sulfur, nitrogen and oxygen found in these hydrocarbon sources relative to light crudes. In particular, the current processes for the catalytic removal of nitrogen (HDN) and oxygen (HDO) consume excessive amounts of hydrogen due to concurrent hydrogenation of aromatics. The ideal HDN or HDO catalyst would be one that selectively cleaves C-N or C-O bonds with minimum consumption of hydrogen. This would reduce the overall hydrotreating costs for refining crude oil and could make synfuels a competitive energy source. In this paper, the authors discuss the results of two approaches to the development of improved HDN catalysts. One approach focuses on the synthesis of high-activity, highly dispersed, ''surface confined,'' catalysts using organometallic complexes. The other approach examines the hydrotreating activies of metals not currently used in HDN and HDO catalysis. They describe here the synthesis and HDN activities of catalysts prepared according to the principles established by these two separate approaches.
- Research Organization:
- SRI International, Menlo Park, CA
- OSTI ID:
- 5519441
- Report Number(s):
- CONF-860425-
- Journal Information:
- Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States) Vol. 31:1; ISSN ACGPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKYLATION
AROMATICS
AZAARENES
AZINES
CARBON
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL LIQUIDS
COST
DENITRIFICATION
ELEMENTS
ENERGY SOURCES
EQUATIONS
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN
HYDROGENATION
LIQUIDS
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXYGEN
PETROLEUM
PROCESSING
PYRIDINES
QUINOLINES
REFINING
SULFUR CONTENT
SYNTHESIS
SYNTHETIC FUELS
VISCOSITY