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CATALYTIC DEGRADATION OF WATER SACHET WASTE (LPDE) USING MESOPOROUS SILICA KIT-6 MODIFIED WITH 12-TUNGSTOPHOSPHORIC ACID

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Author(s): M. A. Usman | T. O. Alaje | V. I. Ekwueme | T. E. Adekoya

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 54;
Issue: 2;
Start page: 85;
Date: 2012;
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Keywords: Water sachet waste (LPDE) | KIT-6 | catalytic degradation | HPA | kerosene | propane.

ABSTRACT
The work investigated the feasibility of the catalytic degradation of water sachet waste (which is a low density polyethylene) to produce valuable chemicals using 12-tungstophosphoric acid (HPA) and 12-tungstophosphoric acid supported on KIT-6 as catalysts. The reaction was carried out at 400°C for 30 minutes at atmospheric pressure. The gas and liquid products obtained were analyzed using a gas chromatograph. For the liquid product using HPA-KIT-6, about 69 mol% of fractions between C10-C17 (kerosene fraction) was obtained; 32 mol% of which was C16 fraction while for the gas product 93 mol% propane fraction was obtained. A low amount of gas (mainly C3 fraction) resulted from the reaction using HPA-KIT-6 while cracking over HPA gave high yield of gas product (C2 and C3 fractions). Catalytic degradation using HPA/KIT-6 is therefore a promising route for obtaining valuable fuels and petrochemicals while at the same time reducing the environmental problems arising from water sachet waste.
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