Synthesis gas conversion utilizing mixed catalyst composed of CO reducing catalyst and solid acid

Journal Article · Tue May 01 00:00:00 EDT 1984 · J. Catal.; (United States)

OSTI ID:6722595

Fujimoto, K; Kudo, Y; Tominaga, H

The synthesis of aromatic hydrocarbons from carbon monoxide and hydrogen was studied under pressurized conditions using hybrid catalysts composed of a methanol synthesis catalyst (Pd/SiO/sub 2/) and zeolites. Combination of Pd/SiO/sub 2/ with H-ZSM-5 or H-mordenite gave aromatic hydrocarbons with selectivities higher than 50%. Coupling of Pd/SiO/sub 2/ with H-Y gave little aromatics. Aromatic hydrocarbons formed on the H-ZSM-5 based catalyst, were mostly tetramethyl and pentamethyl benzenes, significantly different from those obtained by the reaction of methanol on the H-ZSM-5 alone. The yield of hydrocarbons was far higher than the level which is estimated from the thermodynamic equilibrium of methanol formation. The hydrocarbon formation was favored by the high reaction temperature and the high operating pressure. A reaction scheme of the hydrocarbon formation on the hybrid catalyst will be described which includes: formation of methanol, conversion of methanol to olefins, aromatization of olefins, hydrogenation of olefins on Pd/SiO/sub 2/, and methylation of aromatic hydrocarbons by methanol on zeolites.

• Research Organization: Univ. of Tokyo, Japan
• OSTI ID: 6722595
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 87:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
AROMATICS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROGENATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PLATINUM METALS
TRANSITION ELEMENTS
ZEOLITES