CONVERSION OF PLASTIC BALLPOINT WASTE INTO LIQUID FUEL USING PYROLYSIS PROCESS
Among crucial expenses for an individual are items of stationery, such as paper and writing tools. For instance, the production rate of a local stationery manufacturer was around 200 million units annually. Parts of stationery products, especially ballpoint, are made of polypropylene and polystyrene...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/79506 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Among crucial expenses for an individual are items of stationery, such as paper and writing tools. For instance, the production rate of a local stationery manufacturer was around 200 million units annually. Parts of stationery products, especially ballpoint, are made of polypropylene and polystyrene, a type of plastic that is not easily biodegradable.
In this final project, the research involves converting ballpoint pen waste into liquid fuel using the pyrolysis process. A lab-scale batch reactor was used to pyrolyze ballpoint pen samples. A sample of 100 g was pyrolyzed using an electric reactor within a temperature range of 450 °C – 500 °C, producing pyrolytic oils. The heating values, density, viscosity, oil yields, and energy consumed were then used to define the recommended operating temperature. Subsequently, an assessment of energy self-sufficiency from the pyrolysis process of ballpoint waste was conducted.
The recommended pyrolysis temperature of the ballpoint body as the sample was found to be 475 ?; as it had the highest net energy produced from the process compared to the net energy produced of other pyrolysis parameters, which was -0.77 MJ. The liquid mass yield of the product was 87 % of its initial mass while heating values of the recommended operating temperature were found to be 42.25 MJ/kg, densities of 900.8 kg/m3, dynamic viscosities of 0.73 cP and kinematic viscosities of 0.81 cSt. The recommended temperature gives the best energy-sufficiency result.
The pyrolysis oil at recommended operating temperature had characteristics closer to kerosene in terms of viscosity and heating value. It can be concluded that pyrolytic oil can be utilized as an alternative fuel for direct combustion. This proves that the pyrolysis process will be able to overcome the problem of accumulated waste by producing useful liquid fuel in a self-sustaining process.
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