Fuzzy optimization of the esterification conditions in biodiesel production using karanja oil as feedstock

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ID: 284853
2021
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Abstract
Current biodiesel production remains unsustainable and costly because of the use of refined edible oils as feedstock. The use of non-edible oils such as Karanja oil would contribute to making biodiesel production more economically competitive because of its availability and low cost. Many studies have performed optimization techniques on biodiesel production which only includes local optimization of operating variables without consideration of cost. This paper performs a case study on the esterification conditions in biodiesel production from Karanja oil which utilizes fuzzy optimization in the multiobjective decision-making process to determine optimized values for the conversion of the free fatty acid (FFA) content in Karanja oil with its cumulative uncertainty error (YQ) and its corresponding total operating cost (CT). This paper also incorporates cumulative uncertainty into the variables and an operating cost equation which is both essential in studying the economic feasibility of the process. The operating variables include the methanol-to-oil ratio, catalyst loading, reaction time, and duty cycle. The Pareto front was generated from the objective functions to determine the boundary limits for YQ and CT. Results indicated an overall satisfaction level of 64.68% for conversion and cost. The optimal conditions of the variables were 5:1 for molar ratio, 0.85 wt% for catalyst loading, 79% for duty cycle, and 89.35 min for reaction time. These conditions yielded a YQ of 68% and a total operating cost of USD 0.12 per liter of Karanja oil esterified. Comparison with previous literature showed a conversion that was 13.51% lower but at a cost that was 24.86% cheaper.
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persistent_1760653881_68f17239a522c Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors See, Caitlyn Danielle O.
Journal Malay Journal
Year 2021
DOI
DOI not found
URL
https://animorepository.dlsu.edu.ph/etdb_chemeng/4
Keywords Keywords not found

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