Coreactant-induced modifications of catalytic behavior in zeolitic systems

Journal Article · Wed Nov 01 00:00:00 EST 1989 · Industrial and Engineering Chemistry Research; (USA)

DOI:https://doi.org/10.1021/ie00095a008· OSTI ID:7041530

Martin, A M; Chen, J -K; John, V T ^[1]

---

1. Dept of Chemical Engineering, West Virginia Univ, Morgantown, WV (US)

The complex feed processing over zeolite catalysts, competitive reaction between the feed components results in observed rates and selectivities that cannot be predicted from pure component data alone. Hydroisomerization of paraffins over various Pt/zeolites in the presence of an aromatic cofeed is considered as an illustration. The aromatic affects paraffin reaction rates by occupying catalytic sites and perhaps also by partially blocking the pores. Analysis of Arrhenius plots helps in correlations of zeolite structure and the extent to which the paraffin reaction is affected. It is shown that the coreactant can induce selectivity to a zeolite that would otherwise not be shape selective.

• OSTI ID: 7041530
• Journal Information: Industrial and Engineering Chemistry Research; (USA), Vol. 28:11; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
CHEMICAL REACTION KINETICS
PARAFFIN
ZEOLITES
CATALYTIC EFFECTS
CHEMICAL REACTORS
MODIFICATIONS
PLATINUM
ALKANES
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PLATINUM METALS
REACTION KINETICS
TRANSITION ELEMENTS
WAXES
020500* - Petroleum- Products & By-Products
400201 - Chemical & Physicochemical Properties