Extraction of Pyrolysis Oil from Mixed Waste Plastics Derived from Energy Efficient Pyrolysis Reactor and Red Mud as Catalyst

K. Sunil Kumar, Sumathy Muniamuthu

Abstract


Although various techniques are implemented towards the synthesis of oil from various alternative sources such as seeds, stem layers of trees, and chicken wastes, the yielding percentage of oil was limited. The yielding of oil from these conventional techniques by mechanical expeller, Where the mechanical expeller rotates at 25 to 35 rpm to convert the seeds into oil, Solvent techniques essentially require a solvent as hexane as an absorbing agent to change the seeds into oil. The thermocracking method is the generation of oil from seeds with the help of a reactor working with temperatures of 400°C-500°C. This paper uses an energy efficient waste plastic Reactor to focus on oil extraction from mixed waste plastic. The experimental setup consists of an inner tank of 20CR80S-75µm YSZ (20% Chromium 80% Steel and 75 microns Yttria-stabilized zirconia) coated material that can withstand temperatures up to 1000°C. Experiments were carried out with 6 kgs of MWP (Mixed Waste Plastics) plastics kept inside the reactor in red mud as a catalyst for better yielding. The results observed that 450 ml of oil was yielded from 6 kgs of MWP at the reaction temperature range of 300-500°C with a reaction time of 1.5 to 2 hours for red mud catalyst. The condenser effectiveness was achieved up to 0.88 due to increased copper windings from 8 to 16, along with the implementation of two-stage condenser setups.

Keywords


Red mud, Catalyst, GCMS, FTIR, Greener environment, Environmental sustainability.

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References


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