Desulfurization with transition metal catalysts. [Dibenzothiophene]

Technical Report · Mon Nov 01 04:00:00 EST 1982

OSTI ID:6932684

Eisch, J J

The principal objective of this research is to uncover new reagents and catalysts for upgrading coal-derived fuels by removing undesirable organosulfur, organonitrogen and, if feasible, organooxygen components. During the fourth quarter the following studies were continued or initiated: (1) study of the combined desulfurizing action of nickel salts and metal hydrides, either in homogeneous media or when dispensed on a silica or polymer support; (2) evaluation of phosphine complexes of nickel or molybdenum as potent desulfurizing agents; (3)examination of the desulfurizing action of nickel and cobalt salts, when combined with aluminum hydrides, toward sulfones and sulfides; (4) adaptation of nickel and cobalt agents for the desulfurization of SRC coal liquids; and (5) continued search for similar agents that could denitrogenate carbazoles and quinolines. The following progress has been made: (1) combinations of nickel(II) salts and NaAlEt/sub 2/H/sub 2/ in toluene solutions have proved effective in reducing the sulfur content of SRC liquids; (2) preliminary indications are that dibenzothiophene can be desulfurized by (R/sub 3/P)/sub 4/ Ni complexes; (3) ..cap alpha..,..beta..-unsaturated sulfones are promptly reduced at the C=C bond by R/sub 2/AlH + Ni, and then more slowly desulfurized; (4) a polymer of 4-vinylpyridine can take the place of pyridine in activating nickel for desulfurizing SRC liquids; and (5) titanium salts have shown little activity for denitrogenating carbazoles, but nickel salts have shown some promise.

• Research Organization: State Univ. of New York, Binghamton (USA). Dept. of Chemistry
• DOE Contract Number: FG22-81PC40782
• OSTI ID: 6932684
• Report Number(s): DOE/PC/40782-T3; ON: DE83003062
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALUMINIUM COMPOUNDS
ALUMINIUM HYDRIDES
AZINES
AZOLES
CARBAZOLES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL LIQUIDS
COBALT COMPOUNDS
COMPLEXES
DENITRIFICATION
DESULFURIZATION
FLUIDS
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
LIQUIDS
MINERALS
MOLYBDENUM COMPLEXES
NICKEL COMPLEXES
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
POLYMERS
PYRIDINES
QUINOLINES
RESEARCH PROGRAMS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SRC PROCESS
SULFONES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS