Extraction and Optimization of Oil from Post Hospital Waste Plastic through Catalytic Pyrolysis using Central Composite Design (CCD)

Extraction and Optimization of Oil from Post Hospital Waste Plastic through Catalytic Pyrolysis using Central Composite Design (CCD)
  IJETT-book-cover           
  
© 2024 by IJETT Journal
Volume-72 Issue-5
Year of Publication : 2024
Author : S. Arul Selvan, K. Kumaravel
DOI : 10.14445/22315381/IJETT-V72I5P107

How to Cite?

S. Arul Selvan, K. Kumaravel, "Extraction and Optimization of Oil from Post Hospital Waste Plastic through Catalytic Pyrolysis using Central Composite Design (CCD)," International Journal of Engineering Trends and Technology, vol. 72, no. 5, pp. 58-65, 2024. Crossref, https://doi.org/10.14445/22315381/IJETT-V72I5P107

Abstract
In this study, waste plastic oil was extracted and optimized from Post-Hospital Waste Plastic (PHWP) through a catalytic pyrolysis process. The Central Composite Design (CCD) of Response Surface Methodology (RSM) through the Design-Expert software was used in this work to optimize the response by varying the input variables pyrolysis process. In this model, the reaction temperature from 300 to 500°C and retention time from 60 to 120 minutes are considered variable factors, and the yield of waste plastic oil is considered an independent response. The ANOVA of the CCD indicated that all the process-independent variables investigated had significant impacts on the sorption capacity of waste plastic oil obtained from PHWP. This work was split into two phases. In phase I, the retention time and reaction temperature were considered as factors, and waste plastic oil as a response. The obtained experimental data showed that the optimized 90-minute retention time and reaction temperature of 450°C resulted in an optimum yield of waste plastic oil. For the second phase of this work, the optimum retention time (90 min) is set as constant and reaction temperature with catalysts quantity as factors. Three catalysts (Zeolite, Alumina and Silica) with different ratios given by the model are used to increase the yield of waste plastic oil. From the CCD analysis, it is found that the catalysts effectively increase the yield of waste plastic oil.

Keywords
Waste Plastic Oil, Pyrolysis, Post-Commercial Waste Plastic, Post-Hospital Waste Plastic, Post-Domestic Waste Plastic.

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