Shape selectivity and carbon formation in zeolites
Journal Article
·
· J. Catal.; (United States)
The reaction of a feed of equal weights of n-hexane (NC6), 3-methylpentane (3MP), 2,3-dimethylbutane, benzene, and toluene at 427/sup 0/C, 200 psig, and a 3:1 hydrogen-hydrocarbon ratio was studied on Y zeolites, L zeolites, mordenites, ferrierite, and a large number of zeolites of the ZSM series. The coke yields, which varied from approx. 0.02 g to approx. 2.0 g per 100 g paraffin converted, were directly related to the zeolite shape selectivity as measured by the ratio of the first-order rate constants of the disappearance of NC6 to 3MP. The effects of composition and crystal size of the zeolites were minor compared with the pore-structure effect, as was found in previous studies.
- Research Organization:
- Mobil Res. Dev. Corp.
- OSTI ID:
- 6922943
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 56:1; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
AROMATICS
BENZENE
BUTANE
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
CRYSTAL STRUCTURE
DATA
EXPERIMENTAL DATA
HEXANE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MEDIUM PRESSURE
MINERALS
MORDENITE
NUMERICAL DATA
ORGANIC COMPOUNDS
PENTANE
REACTION KINETICS
SILICATE MINERALS
TOLUENE
YIELDS
ZEOLITES
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
AROMATICS
BENZENE
BUTANE
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
CRYSTAL STRUCTURE
DATA
EXPERIMENTAL DATA
HEXANE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MEDIUM PRESSURE
MINERALS
MORDENITE
NUMERICAL DATA
ORGANIC COMPOUNDS
PENTANE
REACTION KINETICS
SILICATE MINERALS
TOLUENE
YIELDS
ZEOLITES