High Pressure Liquid Phase Hydroconversion of Heptane/Nonane Mixture on Pt/H-Y Zeolite Catalyst

Joeri Denayer, Ahmet Ocakoglu, W. Huybrechts, B. Dejonckheere, Johan A. Martens, P.a. Jacobs, S. Calero, R. Krishna, B. Smit, Gino Baron

Onderzoeksoutput: Articlepeer review

35 Citaten (Scopus)

Samenvatting

The competitive hydroconversion of heptane and nonane molecules in their mixture was studied in a continuous flow, fixed-bed reactor filled with Pt/HY zeolite catalyst. Liquid-phase reaction conditions were established at reaction temperatures of 230, 250, and 270 °C by pressurizing the reactor at 100 bar. Hydrogen was supplied in an absorbed state with the liquid hydrocarbon feed. Under these liquid-phase reaction conditions, the apparent reaction rates of heptane and nonane were almost identical. In a similar experiment under vapor-phase conditions, nonane was much more reactive than heptane. The conversion data under liquid-phase conditions were analyzed with an adsorption-reaction model based on intrinsic kinetic parameters obtained from vapor-phase experiments. The model revealed that the enhanced reactivity of heptane in the liquid phase was due to its preferential adsorption. Simulation of the adsorption of the heptane/nonane mixture in the pores of zeolite Y with the configurational-bias Monte Carlo method confirmed the preferential adsorption of heptane in zeolite Y at high pressure. Under such conditions, in zeolite Y supercages the packing of the smaller heptane molecules is more favorable than that of the larger nonane molecules.
Originele taal-2English
Pagina's (van-tot)66-73
Aantal pagina's8
TijdschriftJ. Catal.
Volume220
Nummer van het tijdschrift1
DOI's
StatusPublished - 2003

Bibliografische nota

220, 66-73 (2003)

Vingerafdruk

Duik in de onderzoeksthema's van 'High Pressure Liquid Phase Hydroconversion of Heptane/Nonane Mixture on Pt/H-Y Zeolite Catalyst'. Samen vormen ze een unieke vingerafdruk.

Citeer dit