Kumar, N (2010) Experimental Studies on Conversion of Waste Polystyrene to Styrene and Liquid Fuel. BTech thesis.
The degradation of waste polystyrene sample was carried out in the temperature range of 450-575 ‘c by both thermal degradation and by catalytic degradation using SILICA-ALUMINA as catalyst. It was found that liquid product yield increases with increasing temperature in both thermal as well as catalytic degradation till 550’c , afterwards liquid product yield starts decreasing with increasing temperature. In second stage to find out optimum polystyrene : silica-alumina ratio for maximum liquid product yield , catalytic degradation of polystyrene was carried out at 550’c in various proportion, i.e. 20:1 , 15:1 , 10:1 , 5:1 and 4:1. It was found that liquid product yield increases with increasing the ratio of catalyst upto 5:1 and afterwards increasing the catalyst ratio has resulted in decreasing the amount of liquid product. It was also found that styrene was the main constituents of liquid product ,about 86 % , in thermal degradation of polystyrene at 550’c while in catalytic pyrolysis done in 5:1 ratio at the same temperature has only 41 % styrene in the liquid product obtained. This study indicates that mechanism of degradation depends on the temperature of degradation as well as amount of catalyst used for degradation.
|Item Type:||Thesis (BTech)|
|Uncontrolled Keywords:||TG-Analysis, FT-IR Analysis, DHA Analysis, Gas Chromatography|
|Subjects:||Engineering and Technology > Chemical Engineering > Chemical Reactor|
Chemistry > Polymer Chemistry
Engineering and Technology > Chemical Engineering > Seperation Process
Engineering and Technology > Chemical Engineering > Process Development
|Divisions:||Engineering and Technology > Department of Chemical Engineering|
|Deposited By:||Nitin Kumar|
|Deposited On:||13 May 2010 16:44|
|Last Modified:||13 May 2010 16:44|
|Supervisor(s):||Singh, R K|
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