Catalytic reforming of heptane
Catalytic reforming of heptane was studied in an integral bed reactor on commercial 0.3% platinum-alumina and platinum-rhenium-alumina catalysts preequilibrated by naphtha reforming. The results showed that competitive adsorption of heavy aromatic by-products hinders both heptane isomerization and toluene production. Analysis of the isomer distribution showed that direct conversion of heptane to doubly branched isomers occurs. Analysis of the cracking products showed that they are formed by a carbonium ion mechanism. Toluene selectivity increased with decreasing conversion and decreasing hydrogen or hydrocarbon partial pressure. The two catalysts showed similar yield patterns, but different pressure responses. Reasons for the higher activity and selectivity of the binary catalyst are discussed.
- OSTI ID:
- 5781782
- Country of Publication:
- United States
- Language:
- English
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Catalytic reforming process
Catalytic reforming process
Related Subjects
020500 -- Petroleum-- Products & By-Products
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORPTION
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
AROMATIZATION
CATALYTIC CRACKING
CATALYTIC EFFECTS
CATALYTIC REFORMING
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
EVALUATION
HEPTANE
HYDROCARBONS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PYROLYSIS
REFORMER PROCESSES
RHENIUM
SORPTION
THERMOCHEMICAL PROCESSES
TOLUENE
TRANSITION ELEMENTS