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Catalytic cracking of palm oil to gasoline over pretreated Cu-ZSM-5

Siregar, Tirena Bahnur and Saidina Amin, Nor Aishah (2006) Catalytic cracking of palm oil to gasoline over pretreated Cu-ZSM-5. Jurnal Teknologi F, 44 (F). pp. 69-82. ISSN 0127-9696

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Abstract

The catalytic conversion of palm oil to gasoline using hydrogen pretreatment onH-ZSM-5 with different copper loadings is discussed in this paper. The Cu-ZSM-5 catalysts were prepared using incipient wetness impregnation technique. The crystallinity, acidity and surface area were examined by X-ray diffraction (XRD), Pyridine adsorption - infra red spectroscopy (Py-IR), and Nitrogen Adsorption (NA). The results revealed that the crystallinity, acidity, and surface area of catalyst decreased with increasing copper loading. The catalytic testing was carried out in a fixed bed reactor at atmospheric pressure with hydrogen flow rate of 1 L/h for an hour for hydrogen pretreatment on catalysts. Then, the cracking process was continued at 500°C and weight hourly space velocity (WHSV) of 2.5 h–1 for four hours. Loading copper on the ZSM-5 catalyst showed adverse effects on catalytic activity. The highest gasoline component was aromatics, which was about 11.45 wt % (all consisted of alkyl benzene) followed by 10.53 wt% of naphthenes and 4.06 wt% of isoparaffins for 6 wt% Cu-ZSM-5. Gas as side product consisted mainly of C3 compounds with 53.30 mol% followed by 29.84 mol% of C4 and 0.62 mol% of C5 compounds.

Item Type:Article
Uncontrolled Keywords:Zeolite, H-ZSM-5, Cu-ZSM-5, hydrogen pretreatment, cracking
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:3663
Deposited By: Pn Norhayati Abu Ruddin
Deposited On:14 Jun 2007 09:15
Last Modified:01 Jun 2010 03:11

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