Conversion of Hospital Low Density Polyethylene Waste into Hydrocarbons Using Fly Ash as Catalyst
|International Journal of Engineering Trends and Technology (IJETT)|
|© 2014 by IJETT Journal|
|Year of Publication : 2014|
|Authors : P. Premkumar , C.G. Saravanan , M. Gopalakrishnan
P. Premkumar , C.G. Saravanan , M. Gopalakrishnan. "Conversion of Hospital Low Density Polyethylene Waste into Hydrocarbons Using Fly Ash as Catalyst", International Journal of Engineering Trends and Technology (IJETT), V16(5),241-251 Oct 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Hydrocarbons have been obtained from waste saline bottles, made of low density polyethylene (LDPE), by degradation using fly ash as catalyst. When cat/pol ratio was 0.1 97% degradation was observed with 75 % of oil formation. Increase in cat/pol ratio reduced the amount oil formed and increased the amount of gaseous hydrocarbons. Increase in cat/pol ratio reduced the reaction temperature and reaction time. The oil obtained was fractionated into the following four fractions viz., fraction boiling below 100 ?C, fraction boiling in the range 100 – 150 ?C, fraction boiling in the range 150 – 200 ?C and fraction boiling above 200 ?C. In all cause the major fraction is that one boiling in the range 100 -150 ?C. The GCMS spectrum of this fractions shows that it contains large hydrocarbons with 4-9 carbons atoms. The physico-chemical properties of the three fractions boiling within 200 ?C suggested that they can be used as substitute for diesel. The flame temperature of the flame produced by the burning gas was highest when cat/pol ratio was 0.2.
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catalytic conversion, catalyst, waste plastic, fly ash, plastic oil, hydrocarbons.