Universiti Teknologi Malaysia Institutional Repository

Roles of bronsted acid sites in composite catalyst for triglyceride cracking

Asli, Umi Aisah and Saidina Amin, Nor Aishah and Abdul Karim, Siti Kartina and Siregar, Tirena Bahnur (2005) Roles of bronsted acid sites in composite catalyst for triglyceride cracking. Project Report. Universiti Teknologi Malaysia. (Unpublished)

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Abstract

The diminishing source of non-renewable energy has spurred the interests of researchers to explore the possibility to use alternative sources. Catalytic cracking of vegetable oil to liquid fuels was studied by a number of individuals and the results were encouraging to continue with this study. Palm oil was chosen because of its abundance in Malaysia. Composite catalyst, Al-MCM-41/ZSM-5 was used to catalytically convert palm oil to gasoline. The effects of temperature, hydrogen addition before (activation) and during (hydrocracking) reaction towards acidity and catalytic cracking were investigated. Catalysts used were characterized using X-ray Diffraction (XRD), Nitrogen Adsorption (NA) and Pyridine Infrared Spectrophotometry (Py-IR) methods. The liquid and gaseous products were analyzed using Gas Chromatography. The results showed that increase in temperature had profound effects towards conversion. The highest Organic Liquid Products (OLP) yield and gasoline selectivity was found at 550°C. Increasing the f low rate of hydrogen activation increased conversion, OLP yield and gasoline selectivity. However, the longer time used for activation had adverse effects on cracking activity. Conversely, increased H2: palm oil molar ratio decreased palm oil conversion and gasoline selectivity.

Item Type:Monograph (Project Report)
Uncontrolled Keywords:triglyceride cracking, catalyst, zeolite, palm oil, alternative fuel
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:2802
Deposited By: Siti Kholijah Abdul Mudalip
Deposited On:21 May 2007 08:57
Last Modified:01 Jun 2010 03:05

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