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Techno-economic Feasibility of Biodiesel Production from Acidic Oil

This study analyzes the feasibility of producing biodiesel from acidic oil using sulfuric acid and calcium oxide as catalysts. Various process models and economic analyses are presented, with emphasis on cost-effectiveness and profitability.

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Techno-economic Feasibility of Biodiesel Production from Acidic Oil

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  1. Techno-economic feasibility of producing biodiesel from acidic oil using sulfuric acid and calcium oxide as catalysts S. N. Gebremariamand J. M. Marchetti Faculty of Science and Technology, Norwegian University of Life Sciences, Drøbakveien 31, 1432, Ås, Norway. EnPe Conference February 2019 Trondheim EnPe Conference

  2. Contents • Introduction • Objective • Methods • Results • Conclusion EnPe Conference

  3. Introduction EnPe Conference

  4. Objective • To analyze the techno-economic feasibility of producting fuel grade biodiesel uisng calcium oxide and sulfuric acid catalysts separately and in combination EnPe Conference

  5. Methods • Processsimulationbasedusing • Aspen Plus (Material & Energy balance) • Super Pro (Economic analysis) Reaction Models • Using sulfuric acid catalyst • Transesterification and • Esterification • Using CaO catalyst • Tranesterification and • Saponification EnPe Conference

  6. Methods cont… Description of reactions *Marchetti et al. Production of biodiesel from acid oil using sulfuric acid as catalyst: kinetics study. International Journal of Low-Carbon Technologies. 2010;6:38-43. ** Avhad et al. Modeling chemical kinetics of avocado oil ethanolysis catalyzed by solid glycerol-enriched calcium oxide. Energ Conver and Manage. 2016;126:1168-77. • For sulfuric acid catalyzed: 97.57% conversion could be achieved in 21 hours • For CaO catalyzed: 97.58% conversion could be achieved in 2 hours EnPe Conference

  7. Model I: Homogeneous sulfuric acid catalyzed transesterification of acidic oil for biodiesel production EnPe Conference

  8. Model II: Heterogeneous CaO catalyzed transesterification of acidic oil for biodiesel production EnPe Conference

  9. Model III: Heterogeneous CaO catalysis with sulfuric acid pre-esterification of acidc oil for biodiesel production EnPe Conference

  10. Results Fig. 1: Technical performances of the studied process models EnPe Conference

  11. Results cont… Fig. 2: Economic performances of the studied process models EnPe Conference

  12. Results cont… Sensitivity analysis Fig. 2: Effect of change of oil cost on NPV for Model I ( ), Model II ( ) & Model III ( ) EnPe Conference

  13. Results cont… Fig. 3: Effect of change of biodiesel selling price on NPV for Model I ( ), Model II ( ) & Model III ( ) EnPe Conference

  14. Conclusion • Model II (CaO catalyzed transesterification) is • The least cost alternative • With minimum unit production cost • Profitable, indicating • Positive NPV, • Higher % of ROI & • Less Payback Time • More tolerant to market flactuations of inputs and outputs EnPe Conference

  15. References Marchetti et al. Production of biodiesel from acid oil using sulfuric acid as catalyst: kinetics study. International Journal of Low-Carbon Technologies. 2010;6:38-43. Avhad et al. Modeling chemical kinetics of avocado oil ethanolysis catalyzed by solid glycerol-enriched calcium oxide. Energ Conver and Manage. 2016;126:1168-77 Zhang Y, Dube M, McLean D, Kates M. Biodiesel production from waste cooking oil: 1. Process design and technological assessment. Bioresou techno. 2003;89:1-16. Peters MS, Timmerhaus KD, West RE, Timmerhaus K, West R. Plant design and economics for chemical engineers. McGraw-Hill New York1991. Sinnott RK. Chemical Engineering Design in: C. Richardson, (Ed.). Chemical Engineering. Fourth ed. Elsevier Butterworth-Heinemann, 2005. EnPe Conference

  16. Thank you for your attention Questions ???? shemelis.nigatu.gebremariam@nmbu.no shimesh@gmail.com +4797361166 EnPe Conference

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