Activity and coke deposition on a composite acid catalyst and its components

Journal Article · Wed Mar 01 04:00:00 EST 1989 · Ind. Eng. Chem. Res.; (United States)

DOI:https://doi.org/10.1021/ie00087a004· OSTI ID:6240876

Dean, J W; Dadyburjor, D B

Deactivation of a composite acid catalyst during cracking of n-hexadecane was studied by using a thermogravimetric analysis system operating as a pulse microreactor, followed by a gas chromatograph. The composite catalyst, which contains a silica-alumina component and a zeolite component, was compared to the separate, catalytically active components with respect to activity, surface area, acidity, and coke laydown. A Partitioned-Flow model, which postulates a zeolite contact fraction depending on coke level, is the simplest model that can relate the performance of the composite in terms of the component performances. The contact fraction decreases rapidly with coke level and then levels off.

• Research Organization: Union Carbide Corp. Research and Development Labs., Bound Brook, NJ (US); Dept. of Chemical Engineering, West Virginia Univ., Morgantown, WV (US)
• OSTI ID: 6240876
• Journal Information: Ind. Eng. Chem. Res.; (United States), Journal Name: Ind. Eng. Chem. Res.; (United States) Vol. 28:3; ISSN IECRE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
ALKANES
CATALYSTS
CATALYTIC CRACKING
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COKE
CRACKING
DECOMPOSITION
FLOW MODELS
GAS CHROMATOGRAPHY
GRAVIMETRIC ANALYSIS
HEXADECANE
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MATHEMATICAL MODELS
MINERALS
ORGANIC COMPOUNDS
PERFORMANCE
PYROLYSIS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES
ZEOLITES