Original scientific paper
INFLUENCE OF BENZENE ON THE PROCESS OF n-HEXANE ISOMERIZATION ON Pt/SO42-/ZrO2 CATALYST
Dubravko Polanec
; Fakultet kemijskog inženjerstva i tehnologije Sveučilišta u Zagrebu
Katica Sertić-Bionda
; 1Fakultet kemijskog inženjerstva i tehnologije
Zoran Adžamić
; INA d.d. Zagreb
Marko Mužic
; INA d.d. Zagreb
Abstract
Isomerization of n-hexane is a process that produces high octane value isomers, which are ecologically acceptable components for blending of motor fuels. One of the latest generation isomerization catalysts is Pt/SO42-/ZrO2 catalyst, whose activity depends on feed properties and process parameters. Increased demand for petroleum products in last few years lead to the need for processing feeds of decreased quality, containing compounds that negatively affect the kinetics as well as thermo-dynamics of the process.
In this paper we studied the effect of benzene on the isomerization process of n-hexane. Solutions of benzene in n-hexane were used as feed, with benzene contents of 1, 2, 3 and 4 wt.%. The temperature range in which tests were conducted was 130-170 °C. Additional process parameters which were used to control process efficiency are hydrogen to hydrocarbon ratio and liquid hourly space velocity (LHSV). The results indicate a decrease in conversion of n-hexane with increasing benzene content in the feed, especially at lower temperatures and higher values of space velocity and the hydrogen to hydrocarbon ratio.
Keywords
isomerization; benzene; Pt/SO42-/ZrO2 catalyst; conversion
Hrčak ID:
96030
URI
Publication date:
5.1.2013.
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