Reactions of diphenyl ether with elemental sulfur, hydrogen sulfide and iron sulfides in the presence and absence of hydrogen and carbon monoxide

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1985

OSTI ID:7248734

Sweeny, P G

Reactions of diphenyl ether, a model coal compounds, with H/sub 2/S and iron sulfides in the presence and absence of H/sub 2/ and CO are described. Temperatures between 375/sup 0/C and 525/sup 0/C were employed. Three major types of batch autoclaves were used: Pyrex, 316 stainless steel and 1060 aluminum. The products of these reactions were quantitated by GLC, and qualified by mass spectroscopy and spiking with authentic samples using GLC. The reaction of diphenyl ether with H/sub 2/S in pyrex reactors produced mainly phenol and thiophenol. An activation energy of 45.6 kcal/mole was calculated. This reaction was enhanced by S and FeS/sub 2/, unaffected by H/sub 2/O, inhibited by H/sub 2/ and Fe/sub 1-x/S and quenched by 316 stainless steel and tetralin. Reactions of diphenylmethane with H/sub 2/S are also reported. The major products were toluene and thiophenol. The reaction of diphenyl ether with H/sub 2/S in the 316 stainless steel reactors produced mostly phenol and equal amounts of benzene and reactors produced mostly phenol and equal amounts of benzene and thiophenol. The addition of S to this reaction enhanced the conversion of diphenyl ether, as did the addition of H/sub 2/O. The addition of H/sub 2/ to the reaction of H/sub 2/S with diphenyl ether in the steel reactors enhanced the conversion producing benzene, phenol, cyclohexane and methylcyclopentane. The activation energy was determined to be 29 kcal/mole. The reactivity of pyrrhotite as a function of the partial pressure of H/sub 2/S in a H/sub 2/ atmosphere towards converting diphenyl ether was examined. CO had no effect on the conversion of diphenyl ether except when combined with H/sub 2/S and H/sub 2/O where the formation of H/sub 2/ by the shift reaction was possible.

• Research Organization: North Dakota Univ., Grand Forks (USA)
• OSTI ID: 7248734
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010500 -- Coal
Lignite
& Peat-- Products & By-Products
010600 -- Coal
Lignite
& Peat-- Properties & Composition
ACTIVATION ENERGY
ALKANES
ALKYLATED AROMATICS
ALLOYS
AROMATICS
AUTOCLAVES
BENZENE
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CHROMIUM ALLOYS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
CORROSION RESISTANT ALLOYS
CYCLOALKANES
CYCLOHEXANE
ELEMENTS
ENERGY
ENERGY SOURCES
ETHERS
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXY COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON SULFIDES
KINETICS
LIQUEFACTION
LIQUIDS
MASS SPECTROSCOPY
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOLS
REACTION KINETICS
SEPARATION PROCESSES
SPECTROSCOPY
STAINLESS STEELS
STEELS
SULFIDES
SULFUR
SULFUR COMPOUNDS
TETRALIN
THERMOCHEMICAL PROCESSES
THIOPHENOLS
TOLUENE
TRANSITION ELEMENT COMPOUNDS