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Enzymatic production of biodiesel using lipase catalyst and testing of an unmodified compression ignition engine using its blends with diesel

Author

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  • Jayaraman, Jayaprabakar
  • Alagu, Karthikeyan
  • Appavu, Prabhu
  • Joy, Nivin
  • Jayaram, Parthipan
  • Mariadoss, Anish

Abstract

The exploration for alternative fuels was prompted by increasing environmental concerns, rising conventional fuel prices and fossil fuel depletion. The improved potential of waste cooking oil makes it desirable for its utilization for biodiesel production. In the present study, enzymatic transesterification of waste cooking oil (WCO) is done using lipase enzyme to produce waste cooking oil methyl ester (WCOME) and three different test blends were used namely, Diesel+20% of WCOME, Diesel+40% of WCOME, and Diesel+60% of WCOME. After several trials the optimum reaction factors found to be methanol as the alcohol, 1.5% enzyme concentration (by weight of WCO), 3:1 M ratio and 4 h reaction time. The performance and engine characteristics like as brake specific fuel consumption, brake thermal efficiency, and the emissions of CO, HC, and NOx were analyzed in unmodified compression ignition engine. Test results revealed that the blend with lower biodiesel content performed well in the engine with lowered CO, HC and NOx emissions. But with the higher biodiesel concentrations, there was a considerable increase in the emission spectrum. Overall, Diesel+20% of WCOME and diesel+40% of WCOME blends resulted in improved performance with minimized emissions and can be utilized in an unmodified DI diesel engine.

Suggested Citation

  • Jayaraman, Jayaprabakar & Alagu, Karthikeyan & Appavu, Prabhu & Joy, Nivin & Jayaram, Parthipan & Mariadoss, Anish, 2020. "Enzymatic production of biodiesel using lipase catalyst and testing of an unmodified compression ignition engine using its blends with diesel," Renewable Energy, Elsevier, vol. 145(C), pages 399-407.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:399-407
    DOI: 10.1016/j.renene.2019.06.061
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    Citations

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    Cited by:

    1. Liu, Ying & Yan, Hanzhao & Liu, Jia & Dong, Wanglai & Cao, Zhi & Hu, Xingbang & Zhou, Zheng, 2020. "Acidic deep eutectic solvents with long carbon chains as catalysts and reaction media for biodiesel production," Renewable Energy, Elsevier, vol. 162(C), pages 1842-1853.
    2. Ezzati, Rohollah & Ranjbar, Shahram & Soltanabadi, Azim, 2021. "Kinetics models of transesterification reaction for biodiesel production: A theoretical analysis," Renewable Energy, Elsevier, vol. 168(C), pages 280-296.
    3. Nirmala, N. & Dawn, S.S. & Harindra, C., 2020. "Analysis of performance and emission characteristics of Waste cooking oil and Chlorella variabilis MK039712.1 biodiesel blends in a single cylinder, four strokes diesel engine," Renewable Energy, Elsevier, vol. 147(P1), pages 284-292.
    4. Kumar, A. Naresh & Kishore, P.S. & Raju, K. Brahma & Ashok, B. & Vignesh, R. & Jeevanantham, A.K. & Nanthagopal, K. & Tamilvanan, A., 2020. "Decanol proportional effect prediction model as additive in palm biodiesel using ANN and RSM technique for diesel engine," Energy, Elsevier, vol. 213(C).
    5. Wancura, João H.C. & Brondani, Michel & dos Santos, Maicon S.N. & Oro, Carolina E.D. & Wancura, Guilherme C. & Tres, Marcus V. & Oliveira, J. Vladimir, 2023. "Demystifying the enzymatic biodiesel: How lipases are contributing to its technological advances," Renewable Energy, Elsevier, vol. 216(C).
    6. Kumar, Dilip & Das, Tapas & Giri, Balendu Shekher & Verma, Bhawna, 2020. "Preparation and characterization of novel hybrid bio-support material immobilized from Pseudomonas cepacia lipase and its application to enhance biodiesel production," Renewable Energy, Elsevier, vol. 147(P1), pages 11-24.

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