Pseudocomponent test of the relative utilization of feed components in fluid catalytic cracking

Journal Article · Mon Mar 01 00:00:00 EST 1993 · Journal of Catalysis; (United States)

DOI:https://doi.org/10.1006/jcat.1993.1067· OSTI ID:6374630

Harding, R H; Gatte, R R; Pereira, C J ^[1]

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1. W. R. Grace Co.-Conn., Columbia, MD (United States)

A pseudocomponent mixture is used to test the relative reactivity of hydrocarbon classes over a range of zeolite catalysts (USY, CREY, Beta, Omega, and ZSM-5) under industrial fluid catalytic cracking (FCC) conditions. The hydrocarbon mixture (32.7% n-hexadecane, 45.3% phenyloctane, 17.3% cyclohexyloctane, and 2.3% 2-methylhexadecane) was chosen to reflect the molecular distribution of n-paraffins, i-paraffins, naphthenes, and aromatics in a standard FCC gas oil feed. Analysis of the cracking results of the hydrocarbon mixture determines relative kinetic reaction rates which are decoupled from deactivation, volume expansion, and some adsorption terms. Each zeolite type cracks the hydrocarbons in the mixture at different relative rates, which reflects differences in competitive adsorption, relative diffusion rates, and acid site strength. The relative reaction rates of the hydrocarbon classes over a given zeolite are a strong determinant of the molecular distribution of the gasoline produced by that zeolite catalyst for both the pseudocomponent mixture and the full gas oil. 24 refs., 2 figs., 6 tabs.

• OSTI ID: 6374630
• Journal Information: Journal of Catalysis; (United States), Vol. 140:1; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
AROMATICS
CATALYTIC CRACKING
HYDROAROMATICS
PARAFFIN
ZEOLITES
CATALYTIC EFFECTS
ADSORPTION
ALKYLATED AROMATICS
CATALYSTS
CHEMICAL REACTION KINETICS
CRACKS
DEACTIVATION
DIFFUSION
DISTRIBUTION
GAS OILS
GASOLINE
HETEROGENEOUS CATALYSIS
HEXADECANE
HYDROCARBONS
MIXTURES
ALKANES
CATALYSIS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DISPERSIONS
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
LIQUID FUELS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYROLYSIS
REACTION KINETICS
SILICATE MINERALS
SORPTION
THERMOCHEMICAL PROCESSES
WAXES
020400* - Petroleum- Processing