Enhanced catalysts for hydrodenitrogenation of coal liquids

Conference · Wed Apr 01 04:00:00 EST 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5088428

Hirschon, A S; Laine, R M; Wilson, Jr, R B ^[1]

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1. SRI International, Menlo Park, CA (USA)

The catalytic removal of nitrogen and oxygen in the upgrading of coal-derived liquids to hydrocarbon fuels and petrochemical feedstocks consumes significant amounts of hydrogen. Any method that would remove these heteroatoms from coal liquids with a minimum of hydrogenation, and at lower temperatures than are currently in use, could result in a substantial saving in overall hydrotreating cost, with a concomitant reduction in the cost of producing hydrocarbon liquids. The authors are currently investigating two approaches to the development of improved hydrodenitrogenation (HDN) catalysts. One approach is to synthesize high-activity, highly dispersed, surface-confined catalysts based on organometallic cluster complexes. The second approach is to examine the hydrotreating activities of metals not currently used in HDN and hydrodeoxigenation (HDO) catalysis. This second method arises from homogeneous modeling studies for the transalkylation reaction shown in Equation 1, Et{sub 3}N + Pr{sub 3}N {yields} {sup M{sub y}(CO){sub n}} Et{sub 2}NPr + Pr{sub 2}NEt and from studies of bulk metals on the HDN of tetrahydroquinoline. From the results of these studies they have found that ruthenium exhibits the highest activity for C-N bond cleavage. In this paper, they describe the syntheses and HDN activities of catalysts prepared using these two approaches.

• DOE Contract Number: FG22-83PC60781
• OSTI ID: 5088428
• Report Number(s): CONF-8704347--
• Conference Information: Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Journal Volume: 32:2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
AROMATICS
AZAARENES
AZINES
CARBONYLS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL LIQUIDS
COBALT
COMPLEXES
DATA
DENITRIFICATION
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
LIQUIDS
MATHEMATICAL MODELS
METALS
MOLYBDENUM
NICKEL
NITROGEN
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN
PYRIDINES
QUINOLINES
REMOVAL
RUTHENIUM COMPLEXES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS