| dc.description.abstract | Energy is the key of globalization. As the world population and economy grow, higher 
consumption results in higher waste packaging ,plastic and paper residues. Pyrolysis offers a way 
to recover fuels and other chemical from this fraction. By applying heat to these feedstock into 
more valuable products in the forms of gas, liquid and char.
The main objective of this study were to understand and optimize the processes of waste plastic 
and rice husk pyrolysis. Pyrolysis of polyethylene (PE), polypropylene (PE), polystyrene (PS), 
cellulose, lignin, silica and moisture has been investigated both theoretically and experimentally 
in a pyrolysis reactor. The key factor have been investigated and identified. The cranking 
temperature for the PE and PP in the pyrolysis is at 450 degree C, but that of PS is lower at 320 
degree C, cellusole is 410 degree C, lignin is 405 degree C and silica is 700-1100 degree C. High 
reaction temperature and heating rate can significantly promote the production of light 
hydrocarbons. Long residence time also favours the yield of the light hydrocarbon products. The 
effects of other factors like type of reactor, catalyst, pressure and reflux rate have also been 
investigated in the literature review | en_US |