Shape selectivity and carbon formation in zeolites

Journal Article · Mon Jan 01 00:00:00 EST 1979 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(79)90099-X· OSTI ID:6922943

Rollmann, L D; Walsh, D E

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), Vol. 56:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROGENATION
CATALYSTS
ZEOLITES
CATALYTIC EFFECTS
COMPARATIVE EVALUATIONS
BENZENE
BUTANE
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
HEXANE
HIGH TEMPERATURE
MEDIUM PRESSURE
MORDENITE
PENTANE
REACTION KINETICS
TOLUENE
YIELDS
ALKANES
AROMATICS
CHEMICAL REACTIONS
DATA
HYDROCARBONS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
SILICATE MINERALS
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)