Main Article Content


Biodiesel is one of the renewable energy sources, non-fossil. The chosen feedstock should ideally be low-cost. Using waste cooking oil can reduce synthetic biodiesel's price by up to 70%. However, biodiesel has the advantage of lower heating value and higher density, causing increased fuel consumption and NOx emissions. Biodiesel has physicochemical properties such as a more significant cetane number than fossil diesel, a high flash point, and the absence of sulfur. This study identifies the potential availability of WCO as biodiesel and summarizes recent studies on the physiochemical properties of WCO biodiesel. This study also aims to clarify the use of WCO biodiesel on engine performance and exhaust emission characteristics (H.C., CO, CO2, NOx) when this biodiesel is used. Engine type and biodiesel ratio were identified for all articles. This study also discusses the effect of adding nanoparticles on engine performance and exhaust emissions in WCO biodiesel. This study also clarifies material compatibility (corrosion, wear, and friction). The corrosion rate in various types of materials and corrosion testing methods. Finally, this paper presents the opportunity for WCO biodiesel to be very feasible to reduce fossil diesel use.


Biodiesel WCO Corrosion Engine performance Emission Wear Friction

Article Details


  1. Y. H. Tan, M. O. Abdullah, J. Kansedo, N. M. Mubarak, Y. San Chan, and C. Nolasco-Hipolito, "Biodiesel production from used cooking oil using green solid catalyst derived from calcined fusion waste chicken and fish bones," Renewable energy, vol. 139, pp. 696-706, 2019, doi: 10.1016/j.renene.2019.02.110
  2. M. Aghbashlo, M. Tabatabaei, and S. Hosseinpour, "On the exergoeconomic and exergoenvironmental evaluation and optimization of biodiesel synthesis from waste cooking oil (WCO) using a low power, high frequency ultrasonic reactor," Energy Conversion and Management, vol. 164, pp. 385-398, 2018, doi: 10.1016/j.enconman.2018.02.086
  3. R. A. Aitbelale, I. Alaoui, F. E. M; Eddine, A. S. Rujas, N. M. and Aguilar, F. , "Characterization and determination of thermodynamic properties of waste cooking oil biodiesel: Experimental, correlation and modeling density over a wide temperature range up to 393.15 and pressure up to 140 MPa," Fluid Phase Equilibria, vol. 497, pp. 87–96, 2019, doi: 10.1016/j.fluid.2019.06.003.
  4. G. R. Katre, S. Zinjarde, S. Kumar, V. R; Kulkarni, B. D. and Kumar, A. R., "Optimization of the in situ transesterification step for biodiesel production using biomass of Yarrowia lipolytica NCIM 3589 grown on waste cooking oil," Energy, vol. 142, pp. 944–952, 2017, doi: 10.1016/
  5. M. T. Helmi, K. Hemmati, A. azar, P. A. and Safekordi, A. , "Phosphomolybdic acid/graphene oxide as novel green catalyst using for biodiesel production from waste cooking oil via electrolysis method: Optimization using with response surface methodology (RSM)," Fuel, vol. 287, p. 119528, 2021, doi: 10.1016/j.fuel.2020.119528.
  6. M. K. Yesilyurt, "The evaluation of a direct injection diesel engine operating with waste cooking oil biodiesel in point of the environmental and enviroeconomic aspects," Energy Sources, Part A Recover. Util. Environ. Eff, vol. 40, pp. 654–661, 2018, doi: 10.1080/15567036.2018.1454546.
  7. J. Milano et al., "Physicochemical property enhancement of biodiesel synthesis from hybrid feedstocks of waste cooking vegetable oil and Beauty leaf oil through optimized alkaline-catalysed transesterification," Waste Management, vol. 80, pp. 435-449, 2018, doi: 10.1016/j.wasman.2018.09.005
  8. Y. D. Cao, A; Salehi,A; Nemati, M; Ghasemi, A; Koohshekan, O, "The economic evaluation of establishing a plant for producing biodiesel from edible oil wastes in oil-rich countries: Case study Iran," Energy, vol. 213, p. 118760, 2020, doi: 10.1016/
  9. A. A. Elshaib, Kamal, M. M. and Elahwany, A. A., "Performance of a diesel engine fueled by waste cooking oil biodiesel," J. Energy Inst, vol. 87, pp. 11–17, 2014, doi: 10.1016/j.joei.2014.02.001.
  10. N. N. Petchsoongsakul, K. Kiatkittipong, W. Wongsawaeng, D., and Assabumrungrat, S. , "Different water removal methods for facilitating biodiesel production from low-cost waste cooking oil containing high water content in hybridized reactive distillation," Renew. Energy, vol. 162, pp. 1906–1918, 2020, doi: 10.1016/j.renene.2020.09.115.
  11. S. Dharma et al., "Corrosion behaviours of mild steel in biodiesel-diesel fuel blend," in 2018 International Conference on Applied Science and Technology (iCAST), 2018: IEEE, pp. 10-15, doi: 10.1109/iCAST1.2018.8751635
  12. A. K. T. Sodhi, S. and Kundu, K., "Biodiesel production using waste cooking oil: a waste to energy conversion strategy,” Clean Technol. Environ. Policy," Clean Technol. Environ. Policy, vol. 19, pp. 1799–1807, 2017, doi: 10.1007/s10098-017-1357-6.
  13. L. F. e. a. Chuah, "Intensification of biodiesel synthesis from waste cooking oil (Palm Olein) in a Hydrodynamic Cavitation Reactor: Effect of operating parameters on methyl ester conversion," Chem. Eng. Process. Process Intensif, vol. 95, pp. 235–240, 2015, doi: 10.1016/j.cep.2015.06.018.
  14. A. R. a. R. Gupta, V. K., "Calcium diglyceroxide catalyzed biodiesel production from waste cooking oil in the presence of microwave: Optimization and kinetic studies," Renew. Energy, vol. 121, pp. 757–767, 2018, doi: 10.1016/j.renene.2017.11.027.
  15. A. a. M. Avinash, A. , "Economic analysis of biodiesel production from waste cooking oil," Energy Sources, Part B Econ. Plan. Policy, vol. 12, pp. 890–894, 2017, doi: 10.1080/15567249.2017.1319438.
  16. S. C. Bargole, J. George, S. and Saharan, V. K. , "Process intensification of synthesis of biodiesel using a novel recirculating flow ultrasonication reactor," Chem. Eng. Process. Process Intensif, vol. 122, pp. 21–30, 2017, doi: 10.1016/j.cep.2017.09.010.
  17. M. D. I. Putra, C. Udiantoro, Ristianingsih, Y. and Nata,I. F. , "A cleaner process for biodiesel production from waste cooking oil using waste materials as a heterogeneous catalyst and its kinetic study," J. Clean. Prod, vol. 195, pp. 1249–1258, 2018, doi: 10.1016/j.jclepro.2018.06.010.
  18. H. C. T. Ong, Y.W. Goh, B.H.H. Gan, Y.Y. Mofijur, M. Fattah, I.M.R. Chong, C.T. Alam, M.A. Lee, H.V. Silitonga, A.S. Mahlia, T.M.I "Recent advances in biodiesel production from agricultural products and microalgae using ionic liquids: Opportunities and challenges," Energy Convers. Manag, vol. 228, p. 113647, 2020, doi: 10.1016/j.enconman.2020.113647.
  19. S. G. Naveen, K. P. Malolan, R. Ramesh, S. J. Aakriti, K. and Arun, J. , "S. Naveen, K. P. Gopinath, R. Malolan, S. J. Ramesh, K. Aakriti, and J. Arun, “Novel Solar Parabolic Trough Collector cum Reactor for the Production of Biodiesel from Waste Cooking Oil using Calcium Oxide catalyst derived from seashells waste,” Chem. Eng. Process. - Process Intensif, vol. 157, p. 108145, 2020, doi: 10.1016/j.cep.2020.108145.
  20. A. S. O. Adekunle, J.A.O. Oduwale, A.I. Owootomo,Y. Obisesan, O.R. Elugoke, S.E. Durodola, S.S. Akintunde, S.B. Oluwafemi, O.S, "Biodiesel potential of used vegetable oils transesterified with biological catalysts" Energy Reports, vol. 6, pp. 2861–2871, 2020, doi: 10.1016/j.egyr.2020.10.019.
  21. O. G. Aboelazayem, M. and Saha, B. , "Derivatisation-free characterisation and supercritical conversion of free fatty acids into biodiesel from high acid value waste cooking oil," Renew. Energy, vol. 143, pp. 77–90, 2019, doi: 10.1016/j.renene.2019.04.106.
  22. S. C. Foteinis, E. Litinas, A. and Tsoutsos, T. , "Used-cooking-oil biodiesel: Life cycle assessment and comparison with first- and third-generation biofuel," Renew. Energy, vol. 153, pp. 588–600, 2020, doi: 10.1016/j.renene.2020.02.022.
  23. M. Y. Babaki, M. Habibi, Z. and Mohammadi, M. , "Process optimization for biodiesel production from waste cooking oil using multi-enzyme systems through response surface methodology," Renew. Energy, vol. 105, pp. 465–472, 2017, doi: 10.1016/j.renene.2016.12.086.
  24. T. T. L. Nguyen, M.K. Uemura, Y. Mansor, N. Lim, J.W. Show, P.L. Tan, I.S. Lim, S., "High biodiesel yield from wet microalgae paste via in-situ transesterification: Effect of reaction parameters towards the selectivity of fatty acid esters,," Fuel, vol. 272, p. 117718, 2020, doi: 10.1016/j.fuel.2020.117718.
  25. S. M. Shanmugam, T. Anto, S. Sudhakar, M. P. Kumar, S. S. and Pugazhendhi, A., "Cell density, Lipidomic profile, and fatty acid characterization as selection criteria in bioprospecting of microalgae and cyanobacterium for biodiesel production," Bioresour. Technol, vol. 304, p. 123061, 2020, doi: 10.1016/j.biortech.2020.123061.
  26. S. Suherman, I. Abdullah, M. Sabri, and A. S. Silitonga, "Evaluation of Physicochemical Properties Composite Biodiesel from Waste Cooking Oil and Schleichera oleosa Oil," Energies, vol. 16, no. 15, p. 5771, 2023, doi: 10.3390/en16155771
  27. H. Zhang, U. A. Ozturk, Q. Wang, and Z. Zhao, "Biodiesel produced by waste cooking oil: Review of recycling modes in China, the US and Japan," Renewable and Sustainable Energy Reviews, vol. 38, pp. 677-685, 2014, doi: 10.1016/j.rser.2014.07.042
  28. Y. H. Tan, M. O. Abdullah, and C. Nolasco-Hipolito, "The potential of waste cooking oil-based biodiesel using heterogeneous catalyst derived from various calcined eggshells coupled with an emulsification technique: A review on the emission reduction and engine performance," Renewable and Sustainable Energy Reviews, vol. 47, pp. 589-603, 2015, doi: 10.1016/j.rser.2015.03.048
  29. D. Singh et al., "A comprehensive review of biodiesel production from waste cooking oil and its use as fuel in compression ignition engines: 3rd generation cleaner feedstock," Journal of Cleaner Production, vol. 307, p. 127299, 2021, doi: 10.1016/j.jclepro.2021.127299
  30. A. Gaur, S. Mishra, S. Chowdhury, P. Baredar, and P. Verma, "A review on factor affecting biodiesel production from waste cooking oil: An Indian perspective," Materials Today: Proceedings, vol. 46, pp. 5594-5600, 2021, doi: 10.1016/j.matpr.2020.09.432
  31. N. Mansir et al., "Modified waste egg shell derived bifunctional catalyst for biodiesel production from high FFA waste cooking oil. A review," Renewable and Sustainable Energy Reviews, vol. 82, pp. 3645-3655, 2018, doi: 10.1016/j.rser.2017.10.098
  32. C. C. Chen, A. Kusadokoro, M. Nie, H. and Xu, W. , "Sustainability and challenges in biodiesel production from waste cooking oil : An advanced bibliometric analysis," Energy Reports,, vol. 7, pp. 4022–4034,, 2021, doi: 10.1016/j.egyr.2021.06.084.
  33. A. D. S. W. César, D. E. Saraiva, G. L. E. D. O. and Guabiroba,R. C. S. , "The potential of waste cooking oil as supply for the Brazilian biodiesel chain," Renew. Sustain. Energy Rev, vol. 72, pp. 246–253, 2016, doi: 10.1016/j.rser.2016.11.240.
  34. A. A. Pugazhendhi, A. Mathimani, T. and Atabani, A. E. , "Optimization, kinetic and thermodynamic studies on sustainable biodiesel production from waste cooking oil: An Indian perspective," Fuel, vol. 273, p. 117725, 2020, doi: 10.1016/j.fuel.2020.117725.
  35. H. M. Khan et al., "Production and utilization aspects of waste cooking oil based biodiesel in Pakistan," Alexandria Engineering Journal, vol. 60, no. 6, pp. 5831-5849, 2021, doi: 10.1016/j.aej.2021.04.043
  36. J. Gardy et al., "A core-shell SO4/Mg-Al-Fe3O4 catalyst for biodiesel production," Applied Catalysis B: Environmental, vol. 259, p. 118093, 2019, doi: 10.1016/j.apcatb.2019.118093
  37. S. A. Ali, S. Hunagund, S. S. Hussain, and A. H. Bagwan, "The effect of nanoparticles dispersed in waste cooking oil (WCO) biodiesel on thermal performance characteristics of VCR engine," Materials Today: Proceedings, vol. 43, pp. 888-891, 2021, doi: 10.1016/j.matpr.2020.07.214
  38. M. Tumanggor. "The Economic Value of Indonesian Cooking Cooking in the World Market." Aprobi. (accessed 10 april 2020, 2020).
  39. M. A. A. Farid, M. A. Hassan, Y. H. Taufiq-Yap, Y. Shirai, M. Y. Hasan, and M. R. Zakaria, "Waterless purification using oil palm biomass-derived bioadsorbent improved the quality of biodiesel from waste cooking oil," Journal of cleaner production, vol. 165, pp. 262-272, 2017, doi: 10.1016/j.jclepro.2017.07.136
  40. N. S. H. R. Mansir, T.I. and Yap, Y. H. T., "Effective biodiesel synthesis from waste cooking oil and biomass residue solid green catalyst," Chem. Eng. J., vol. 347, pp. 137–144, 2018, doi: 10.1016/j.cej.2018.04.034.
  41. S. Sahar, S. Iqbal,J. Ullah,I. Bhatti,H.N Nouren,S. Rehman,H.U. Nisar,J. Iqbal, M, "Biodiesel production from waste cooking oil: An efficient technique to convert waste into biodiesel," Sustain. Cities Soc, vol. 41, pp. 220–226, 2018, doi: 10.1016/j.scs.2018.05.037.
  42. A. K. a. V. Madheshiya, A. , "Energy-exergy analysis of biodiesel fuels produced from waste cooking oil and mustard oil," Fuel, vol. 214, pp. 386–408, 2018, doi: 10.1016/j.fuel.2017.11.060.
  43. J. Fu, S. Q. Turn, B. M. Takushi, and C. L. Kawamata, "Storage and oxidation stabilities of biodiesel derived from waste cooking oil," Fuel, vol. 167, pp. 89-97, 2016, doi: 10.1016/j.fuel.2015.11.041
  44. M. A. M. Mujtaba, H. H. Kalam Fahad Noor, Farooq,M.A.M Ong,H.C. Gul, M. Soudagar,M.E.M. Bashir, I. M. R. Fattah, I. M. R., "Effect of additivized biodiesel blends on diesel engine performance, emission, tribological characteristics, and lubricant tribology," Energies, vol. 13, pp. 1-15, 2020, doi: 10.3390/en13133375.
  45. A. Silitonga, H. C. Ong, T. Mahlia, H. Masjuki, and W. Chong, "Biodiesel conversion from high FFA crude jatropha curcas, calophyllum inophyllum and ceiba pentandra oil," Energy procedia, vol. 61, pp. 480-483, 2014, doi: 10.1016/j.egypro.2014.11.1153
  46. A. Silitonga et al., "A comparative study of biodiesel production methods for Reutealis trisperma biodiesel," Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, vol. 39, no. 20, pp. 2006-2014, 2017, doi: 10.1080/15567036.2017.1399174
  47. N. A. M. R. Jamaluddin, N.A.M. Silitonga,A.S,Mofijur,M. Shamsuddin,A.H. Ong,H.C. Mahlia,T.M.I and Rahman, S.M.A., "Techno-economic analysis and physicochemical properties of Ceiba pentandra as second-generation biodiesel based on ASTM D6751 and EN 14214," Processes, vol. 9, no. 1-21, 2019, doi: 10.3390/pr7090636.
  48. A. Uyumaz, "Combustion, performance and emission characteristics of a DI diesel engine fueled with mustard oil biodiesel fuel blends at different engine loads" Fuel, vol. 212, pp. 256–267, 2018, doi: 10.1016/j.fuel.2017.09.005.
  49. S. K. K. K. K. R. P. M. V. J. Alagar, Madhu, P., "Performance and emission characteristics of diesel engine fueled with ternary blends of linseed and rubber seed oil biodiesel," Fuel, vol. 285, p. 119255, 2021, doi: 10.1016/j.fuel.2020.119255.
  50. E. C. Alptekin, M. and Sanli, H. , "Biodiesel production from vegetable oil and waste animal fats in a pilot plant," Waste Management, vol. 34, pp. 2146–2154, 2014, doi: 10.1016/j.wasman.2014.07.019.
  51. L. M. G. C. González, D. F. Ryan, S. Jensen, P. D. Pratt, S. and Schenk, P. M. , "Integrated biodiesel and biogas production from microalgae: Towards a sustainable closed loop through nutrient recycling,” ., vol. 82, no. May 2016, pp. 2018, doi: ," Renew. Sustain. Energy Rev, vol. 82, pp. 1137–114, 2018, doi: 10.1016/j.rser.2017.09.091.
  52. Y. H. Tan, M. O. Abdullah, C. Nolasco-Hipolito, and Y. H. Taufiq-Yap, "Waste ostrich-and chicken-eggshells as heterogeneous base catalyst for biodiesel production from used cooking oil: Catalyst characterization and biodiesel yield performance," Applied Energy, vol. 160, pp. 58-70, 2015, doi: 10.1016/j.apenergy.2015.09.023
  53. Z. H. H.-B. Khounani, Abdul-Sattar Nizami, Alawi Sulaiman, Sayed Amir Hossein Goli, Elham Tavassoli-Kafrani, Akram Ghaffari, Mohammad Ali Rajaeifar, Ki-Hyun Kim, Ahmad Farhad Talebi, Mortaza Aghbashlo, Meisam Tabatabaei "Unlocking the potential of walnut husk extract in the production of waste cooking oil-based biodiesel," Renew. Sustain. Energy Rev, vol. 119, p. 109588, 2020, doi: 10.1016/j.rser.2019.109588.
  54. Y. C. Gao, Y. Gu, J. Xin, Z. and Sun,S. , "Butyl-biodiesel production from waste cooking oil: Kinetics, fuel properties and emission performance," Fuel, vol. 236, pp. 1489–1495, 2019, doi: 10.1016/j.fuel.2018.09.015.
  55. S. Dharma, H. C. Ong, H. Masjuki, A. Sebayang, and A. Silitonga, "An overview of engine durability and compatibility using biodiesel–bioethanol–diesel blends in compression-ignition engines," Energy Conversion and Management, vol. 128, pp. 66-81, 2016, doi: 10.1016/j.enconman.2016.08.072
  56. N. D. Nirmala, S. S. and Harindra, C. , "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,” Renew. Energy, vol. 147, pp. 284–292, 2020, doi: 10.1016/j.renene.2019.08.133.
  57. N. A. Amran, U. Bello, and M. S. H. Ruslan, "The role of antioxidants in improving biodiesel’s oxidative stability, poor cold flow properties, and the effects of the duo on engine performance: A review," Heliyon, vol. 8, no. 7, 2022, doi: 10.1016/j.heliyon.2022.e09846
  58. M. A. R. Hazrat, M. G. Khan, M. M. K. Ashwath, N. and Rufford, T. E. , "Emission characteristics of waste tallow and waste cooking oil based termary biodiesel fuels," Energy Procedia,, vol. 160, pp. 842–847, 2019, doi: 10.1016/j.egypro.2019.02.149.
  59. A. H. O. Al-Muhtaseb, A.I. Jamil, F. Al-Riyami, M. Al-Haj, L. Alothman, A.A. Kyaw, H.H. Myint, M.T.Z. Jrai, A.A. Ponnusamy, V.K, "Facile technique towards clean fuel production by upgrading waste cooking oil in the presence of a heterogeneous catalyst," J. King Saud Univ. - Sci, vol. 32, pp. 3410–3416, 2020, doi: 10.1016/j.jksus.2020.10.001.
  60. A. M. Rabie, M. Shaban, M. R. Abukhadra, R. Hosny, S. A. Ahmed, and N. A. Negm, "Diatomite supported by CaO/MgO nanocomposite as heterogeneous catalyst for biodiesel production from waste cooking oil," Journal of Molecular Liquids, vol. 279, pp. 224-231, 2019, doi: 10.1016/j.molliq.2019.01.096
  61. T. A. M. Degfie, T. T. and Mekonnen, Y. S., "Optimized Biodiesel Production from Waste Cooking Oil (WCO) using Calcium Oxide (CaO) Nano-catalyst,” Sci. Rep.," Scientific Reports, vol. 9, pp. 1–8, 2019, doi: 10.1038/s41598-019-55403-4.
  62. J. Q. Hwang, D. Jung, Y. and Bae, C. , "Effect of injection parameters on the combustion and emission characteristics in a common-rail direct injection diesel engine fueled with waste cooking oil biodiesel," Renew. Energy, vol. 63, pp. 9–17, 2014, doi: 10.1016/j.renene.2013.08.051.
  63. P. M. a. R. Shameer, K. , "Experimental evaluation on performance, combustion behavior and influence of in-cylinder temperature on NOx emission in a D.I diesel engine using thermal imager for various alternate fuel blends," Energy, vol. 118, pp. 1334–1344, 2017, doi: 10.1016/
  64. N. K. Outili, H. Nekkab, C. Merouani, R. and Meniai, A. H. , "Biodiesel production optimization from waste cooking oil using green chemistry metrics," Renew. Energy, vol. 145, pp. 2575–2586, 2020, doi: 10.1016/j.renene.2019.07.152.
  65. A. H. G. A. Bakar, A. S. Jimoh, A. Agbajelola, O. D. Okafor, J. O. and Afolabi, E. A. , "Optimization of biodiesel production from waste cooking oil," Energy Sources, Part A Recover. Util. Environ. Eff, vol. 38, pp. 2355–2361, 2016, doi: 10.1080/15567036.2015.1040899.
  66. S. B. Dhingra, G. and Dubey, K. K. , "Validation and enhancement of waste cooking sunflower oil based biodiesel production by the trans-esterification process," Energy Sources, Part A Recover. Util. Environ. Eff., vol. 38, pp. 1448–1454, 2016, doi: 10.1080/15567036.2013.871610.
  67. M. Guo et al., "Process optimization of biodiesel production from waste cooking oil by esterification of free fatty acids using La3+/ZnO-TiO2 photocatalyst," Energy Conversion and Management, vol. 229, p. 113745, 2021, doi: 10.1016/j.enconman.2020.113745
  68. K. A. E. M. Abed, A. K.Sayed, M. M. Shaib, A. A. E. and Gad, M. S. , "Effect of waste cooking-oil biodiesel on performance and exhaust emissions of a diesel engine," Egypt. J. Pet, vol. 27, pp. 985–989, 2018, doi: 10.1016/j.ejpe.2018.02.008.
  69. M. S. a. I. Gad, M. A., "Effect of waste cooking oil biodiesel blending with gasoline and kerosene on diesel engine performance, emissions and combustion characteristics," Process Saf. Environ. Prot, vol. 149, pp. 1–10, 2021, doi: 10.1016/j.psep.2020.10.040.
  70. J. B. Hwang, C. and Gupta, T. , "Application of waste cooking oil (WCO) biodiesel in a compression ignition engine," Fuel, vol. 176, pp. 20–31, 2016, doi: 10.1016/j.fuel.2016.02.058.
  71. L. W. Qu, Z. and Zhang, J. , "Influence of waste cooking oil biodiesel on oxidation reactivity and nanostructure of particulate matter from diesel engine," Fuel, vol. 181, pp. 389–395, 2016, doi: 10.1016/j.fuel.2016.04.113.
  72. S. K. H. Nayak, A. T. Nayak, B. and Mishra, P. C. , "Influence of fish oil and waste cooking oil as post mixed binary biodiesel blends on performance improvement and emission reduction in diesel engine," Fuel, vol. 289, p. 119948, 2021, doi: 10.1016/j.fuel.2020.119948.
  73. P. G. Kumaran, A. J. and Amirthaganesan, S. , "Materials Today : Proceedings Effect of microwave synthesized hydroxyapatite nanorods using Hibiscus rosa-sinensis added waste cooking oil ( WCO ) methyl ester biodiesel blends on the performance characteristics and emission of a diesel engine," Mater. Today Proc, 2019, doi: 10.1016/j.matpr.2019.11.288.
  74. J. S. Patchimpet, B. K. Sangkharak, K. and Klomklao, S. , "Optimization of process variables for the production of biodiesel by transesterification of used cooking oil using lipase from Nile tilapia viscera," Renew. Energy, vol. 153, pp. 861–869, 2020, doi: 10.1016/j.renene.2020.02.039.
  75. Y. X. Xiang, Y. andWang, L. , "Microwave radiation improves biodiesel yields from waste cooking oil in the presence of modified coal fly ash," J. Taibah Univ. Sci., vol. 11, pp. 1019–1029, 2017, doi: 10.1016/j.jtusci.2017.05.006.
  76. J. Guo, S. Sun, and J. Liu, "Conversion of waste frying palm oil into biodiesel using free lipase A from Candida antarctica as a novel catalyst," Fuel, vol. 267, p. 117323, 2020, doi: 10.1016/j.fuel.2020.117323
  77. M. Gad, A. I. El-Seesy, A. Radwan, and Z. He, "Enhancing the combustion and emission parameters of a diesel engine fueled by waste cooking oil biodiesel and gasoline additives," Fuel, vol. 269, p. 117466, 2020, doi: 10.1016/j.fuel.2020.117466
  78. M. M. A.-S. Naeem, E. G. Boffito, D. C. Gadalla, M. A. and Ashour, F. H. , "One-pot conversion of highly acidic waste cooking oil into biodiesel over a novel bio-based bi-functional catalyst," Fuel, vol. 283, 2021, doi: 10.1016/j.fuel.2020.118914.
  79. O. A. S. Kuti, S. M. and Nishida, K. , "Spray combustion simulation study of waste cooking oil biodiesel and diesel under direct injection diesel engine conditions," Fuel, vol. 267, p. 117240, 2020, doi: 10.1016/j.fuel.2020.117240.
  80. S. Chuepeng and C. Komintarachat, "Interesterification optimization of waste cooking oil and ethyl acetate over homogeneous catalyst for biofuel production with engine validation," Applied Energy, vol. 232, pp. 728-739, 2018, doi: 10.1016/j.apenergy.2018.09.085
  81. O. Sahu, "Characterisation and utilization of heterogeneous catalyst from waste rice-straw for biodiesel conversion," Fuel, vol. 287, p. 119543, 2021, doi: 10.1016/j.fuel.2020.119543.
  82. Ş. U. Yildizhan, E. Çalık, A. Dede,G. and Özcanlı, M. , "Fuel properties, performance and emission characterization of waste cooking oil (WCO) in a variable compression ratio (VCR) diesel engine," Eur. Mech. Sci, vol. 1, pp. 56–62, 2017, doi: 10.26701/ems.321789.
  83. R. M. K. Mohamed, G. A. Samad, H. A. A. and Awad, M. E. , "High operative heterogeneous catalyst in biodiesel production from waste cooking oil," Egypt. J. Pet., vol. 29, pp. 59–65, 2020, doi: 10.1016/j.ejpe.2019.11.002.
  84. D. S. Serqueira et al., "Oxidative stability and corrosivity of biodiesel produced from residual cooking oil exposed to copper and carbon steel under simulated storage conditions: Dual effect of antioxidants," Renewable Energy, vol. 164, pp. 1485-1495, 2021, doi: 10.1016/j.renene.2020.10.097
  85. M. K. Yesilyurt, "The effects of the fuel injection pressure on the performance and emission characteristics of a diesel engine fuelled with waste cooking oil biodiesel-diesel blends," Renew. Energy, vol. 132, pp. 649–666, 2019, doi: 10.1016/j.renene.2018.08.024.
  86. A. B. a. Sahabdheen, A. , "Synthesis and characterization of reusable heteropoly acid nanoparticles for one step biodiesel production from high acid value waste cooking oil - Performance and emission studies," Mater. Today Proc, vol. 22, pp. 383–392, 2020, doi: 10.1016/j.matpr.2019.07.249.
  87. A. D. Ranjan, S. S. Jayaprabakar, J. Nirmala, N. Saikiran, K. and Sriram, S. Sai "Experimental investigation on effect of MgO nanoparticles on cold flow properties, performance, emission and combustion characteristics of waste cooking oil biodiesel," Fuel, vol. 220, pp. 780–791, 2018, doi: 10.1016/j.fuel.2018.02.057.
  88. M. A. M. Ali et al., "Biodiesel synthesized from waste cooking oil in a continuous microwave assisted reactor reduced PM and NOx emissions," Environmental research, vol. 185, p. 109452, 2020, doi: 10.1016/j.envres.2020.109452
  89. I. G. S. Vidigal, A. F. Melo, M.P. Giordani, D.S. da Silva, M.L.C.P. Cavalcanti, E.H.S. Ferreira, A.L.G., "Applications of an electronic nose in the prediction of oxidative stability of stored biodiesel derived from soybean and waste cooking oil," Fuel, vol. 284,, p. 119024, 2020, doi: 10.1016/j.fuel.2020.119024.
  90. C. S. M. Cheung, X. J. Fong, K. W.and Tsang, O. K. , "Effect of Waste Cooking Oil Biodiesel on the Emissions of a Diesel Engine," Phys. Procedia, vol. 66,, pp. 93–96, 2015, doi: 10.1016/j.egypro.2015.02.050.
  91. B. Y. Mohan, W. Tay, K. L. and Yu, W. , "Experimental study of spray characteristics of biodiesel derived from waste cooking oil," Energy Convers. Manag, vol. 88, pp. 622–632, 2014, doi: 10.1016/j.enconman.2014.09.013.
  92. C. a. P. Rekhate, A. K. , "Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review," Environ. Qual. Manag, vol. 29, pp. 7–35, 2019, doi: 10.1002/tqem.21645.
  93. Ö. Can, "Combustion characteristics, performance and exhaust emissions of a diesel engine fueled with a waste cooking oil biodiesel mixture," Energy Convers. Manag., vol. 87, pp. 676–686, 2014, doi: 10.1016/j.enconman.2014.07.066.
  94. A. M. N. N. Zare, Timothy A. Bodisco, Farhad M. Hossain, M.M. Rahman, Zoran D. Ristovski, Richard J. Brown, "The effect of triacetin as a fuel additive to waste cooking biodiesel on engine performance and exhaust emissions," Fuel, vol. 182, pp. 640–649, 2016, doi: 10.1016/j.fuel.2016.06.039.
  95. L. Chuah, A. Aziz, S. Yusup, J. Klemes, and A. Bokhari, "Waste cooking oil biodiesel via hydrodynamic cavitation on a diesel engine performance and greenhouse gas footprint reduction," Chemical Engineering Transactions, vol. 50, pp. 301-306, 2016, doi: 10.3303/CET1650051
  96. A. M. Sanjid, H. H. Kalam, M. A. Rahman, S. M. A. Abedin, M. J. and Palash, S. M. , "Impact of palm, mustard, waste cooking oil and Calophyllum inophyllum biofuels on performance and emission of CI engine," Renew. Sustain. Energy Rev, vol. 27, pp. 664–682, 2013, doi: 10.1016/j.rser.2013.07.059.
  97. C. K. C. a. Patel, Joonsik Hwang, Rashmi A. Agarwal, Neeraj Gupta, Choongsik Bae, Tarun Gupta, Avinash Kumar Agarwal "Comparative compression ignition engine performance, combustion, and emission characteristics, and trace metals in particulates from Waste cooking oil, Jatropha and Karanja oil derived biodiesels," Fuel, vol. 236, pp. 1366–1376, 2019, doi: 10.1016/j.fuel.2018.08.137.
  98. L. C. Wei, C. S. and Ning, Z. , "Influence of waste cooking oil biodiesel on combustion, unregulated gaseous emissions and particulate emissions of a direct-injection diesel engine," Energy, vol. 127, pp. 175–185, 2017, doi: 10.1016/
  99. M. J. R. Reddy, N. S. Jayaraman, J. Anand, K. V. Appavu, P. and Arunkumar, T. , "Effect of novel bio-waste derived nano particles as additives on the performance of diesel engine fuelled with waste cooking oil biodiesel blends," Mater. Today Proc, 2020, doi: 10.1016/j.matpr.2020.09.292.
  100. J. M. Kataria, S. K. and Kundu, K. , "Biodiesel production from waste cooking oil using heterogeneous catalysts and its operational characteristics on variable compression ratio CI engine," J. Energy Inst, vol. 92, pp. 275–287, 2019, doi: 10.1016/j.joei.2018.01.008.
  101. S. a. S. Aydin, C. , "Impact of thermal barrier coating application on the combustion, performance and emissions of a diesel engine fueled with waste cooking oil biodiesel-diesel blends," Fuel, vol. 136, pp. 334–340, 2014, doi: 10.1016/j.fuel.2014.07.074.
  102. S. H. M. C. K. Shiao, J.Y. Hsie, P.H. , "Improving Biodiesel Conversions from Blends of High- and Low-Acid-Value Waste Cooking Oils Using Sodium Methoxide as a Catalyst Based on a High," Energies, vol. 11, 2018, doi: 10.3390/en11092298.
  103. C. F. Ming, I.M.R. Chan, Q.N. Pham, P.X. Medwell, P.R. Kook, S. Yeoh, G.H. Hawkes, E.R. and Masri, A.R., "Combustion characterization of waste cooking oil and canola oil based biodiesels under simulated engine conditions," Fuel, vol. 224, pp. 167–177, 2018, doi: 10.1016/j.fuel.2018.03.053.
  104. C. W. M. N. Noor, M. M. and Mamat, R. , "Biodiesel as alternative fuel for marine diesel engine applications: A review," Renew. Sustain. Energy Rev, vol. 94, pp. 127–142, 2018, doi: 10.1016/j.rser.2018.05.031.
  105. G. R. a. A. Kannan, R. , "Effect of injection pressure and injection timing on DI diesel engine fuelled with biodiesel from waste cooking oil," Biomass and Bioenergy, vol. 46, pp. 343–352, 2012, doi: 10.1016/j.biombioe.2012.08.006.
  106. R. T. Muvva, T. and Arunkumar, M. , "Experimental investigation by utilizing nano alumina with waste cooking oil biodiesel fuel in CI engine," Mater. Today Proc, 2020, doi: 0.1016/j.matpr.2020.10.185.
  107. G. J. Wu, G. Yang, Z. and Huang, Z. , "Emission characteristics for waste cooking oil biodiesel blend in a marine diesel propulsion engine,” ., vol. , no. 4, pp. , , doi: ," Polish J. Environ. Stud, vol. 28, pp. 2911–2921, 2019, doi: 10.15244/pjoes/92704.
  108. J. M. N. Pauline, R. Sivaramakrishnan, A. Pugazhendhi, T. Anbarasan, and A. Achary, "Transesterification kinetics of waste cooking oil and its diesel engine performance," Fuel, vol. 285, p. 119108, 2021, doi: 10.1016/j.fuel.2020.119108
  109. M. R. Bhuiya, M. Khan, M. and Ashwath,N. , "Performance and emission characteristics of binary mixture of poppy and waste cooking biodiesel," Energy Procedia, vol. 110, pp. 523–528, 2017, doi: 10.1016/j.egypro.2017.03.179.
  110. P. Z. Zareh, A. A. and Ghobadian, B. , "Comparative assessment of performance and emission characteristics of castor, coconut and waste cooking based biodiesel as fuel in a diesel engine," Energy, vol. 139, pp. 883–894, 2017, doi: 10.1016/
  111. X. J. C. Man, C. S. Ning, Z. Wei, L. and Huang, Z. H. , "Influence of engine load and speed on regulated and unregulated emissions of a diesel engine fueled with diesel fuel blended with waste cooking oil biodiesel," Fuel, vol. 180, pp. 41–49, 2016, doi: 10.1016/j.fuel.2016.04.007.
  112. O. S. P. Valente, V. M. D. Belchior, C. R. P. and Sodré, J. R. , "Exhaust emissions from a diesel power generator fuelled by waste cooking oil biodiesel," Sci. Total Environ, vol. 431, pp. 57–61, 2012, doi: 10.1016/j.scitotenv.2012.05.025.
  113. S. M. W. M. Akram, Muhammad Danish, Hamid Mukhtar, Ahmad Irfan, Syed Ali Raza, Zhen Wang, Muhammad Arshad, "Impact of cerium oxide and cerium composite oxide as nano additives on the gaseous exhaust emission profile of waste cooking oil based biodiesel at full engine load conditions," Renew. Energy, vol. 143, pp. 898–905, 2019, doi: 10.1016/j.renene.2019.05.025.
  114. D. H. Balasubramanian, A. T. Venugopal, I.P. Shanmugam, A.Gao, J. and Wongwuttanasatian, T. , "Numerical and experimental evaluation on the pooled effect of waste cooking oil biodiesel/diesel blends and exhaust gas recirculation in a twin-cylinder diesel engine," Fuel, vol. 287, pp. 119815,, 2021, doi: 10.1016/j.fuel.2020.119815.
  115. N. a. J. Chacko, T., "Comparative evaluation of graphene oxide and graphene nanoplatelets as fuel additives on the combustion and emission characteristics of a diesel engine fuelled with diesel and biodiesel blend," Fuel Process. Technol., vol. 204, p. 106406, 2020, doi: 10.1016/j.fuproc.2020.106406.
  116. A. A. Y. Jrai, J. A.; Al-Muhtaseb, A. H. and Hararah, M. A. , "Combustion characteristics and engine emissions of a diesel engine fueled with diesel and treated waste cooking oil blends," Chem. Eng. J., vol. 117, pp. 129–136, 2011, doi: 10.1016/j.cej.2011.05.078.
  117. S. E. R. Mahesh, A; Begum, K. M. M. S. and Narayanan, A. , "Biodiesel production from waste cooking oil using KBr impregnated CaO as catalyst," Convers. Manag, vol. 91, pp. 442–450, 2015, doi: 10.1016/j.enconman.2014.12.031.
  118. H. P. Maksum, W. and Pulungan, A. B. , "The effect of waste cooking oil biodiesel to the diesel engine performance," Int. J. GEOMATE, vol. 17, pp. 245–251, 2019, doi: 10.21660/2019.64.77868.
  119. K. A. E. A. Bencheikh, Sutha Shobana, M.N. Mohammed, Gediz Uğuz, Orhan Arpa, Gopalakrishnan Kumar, Abdulkadir Ayanoğlu, Awais Bokhari, "Fuels properties, characterizations and engine and emission performance analyses of ternary waste cooking oil biodiesel–diesel–propanol blends," Sustain. Energy Technol. Assessments, vol. 35, pp. 321–334, 2019, doi: 10.1016/j.seta.2019.08.007.
  120. Ü. K. Ağbulut, M. Sarıdemir, S. and Öztürk, A. , "Impact of various metal-oxide based nanoparticles and biodiesel blends on the combustion, performance, emission, vibration and noise characteristics of a CI engine," Fuel, vol. 270, 2020, doi: 10.1016/j.fuel.2020.117521.
  121. A. M. A. a. H. Attia, A. E. , "Influence of diesel fuel blended with biodiesel produced from waste cooking oil on diesel engine performance," Fuel, vol. 167, pp. 316–328, 2016, doi: 10.1016/j.fuel.2015.11.064.
  122. S. K. Hisham, K. Ramasamy, D. Noor, M.M. Amirruddin, A.K. Najafi, G. Rahman, M.M. , "Waste cooking oil blended with the engine oil for reduction of friction and wear on piston skirt," Fuel, vol. 205, pp. 247–261, 2017, doi: 0.1016/j.fuel.2017.05.068.
  123. P. S. a. V. Goel, "Effect of bio-lubricant on wear characteristics of cylinder liner-piston ring and cam-tappet combination in simulated environment," Fuel, vol. 233, pp. 677–684, 2018, doi: 10.1016/j.fuel.2018.06.092.
  124. N. H. A. a. D. Ameen, E, "Study of the tribological properties the mixture of soybean oil and used (waste) frying oil fatty acid methyl ester under boundary lubrication conditions," Renew. Energy, vol. 145, pp. 1730–1747, 2020, doi: 0.1016/j.renene.2019.06.117.
  125. J. Milano et al., "Tribological study on the biodiesel produced from waste cooking oil, waste cooking oil blend with Calophyllum inophyllum and its diesel blends on lubricant oil," Energy Reports, vol. 8, pp. 1578-1590, 2022, doi: 10.1016/j.egyr.2021.12.059
  126. D. S. Singh, D; Soni,S.L; Inda, C.S; Sharma,S; Sharma, P.K; Jhalani, A "A comprehensive review of biodiesel production from waste cooking oil and its use as fuel in compression ignition engines: 3rd generation cleaner feedstock," Journal of Cleaner Production, vol. 307, p. 127299, 2021, doi:
  127. M. W. Matbouei, D. P. Liang, X. and Hainsworth, S. V, "An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing," Fuel, vol. 285, p. 119063, 2021, doi: 10.1016/j.fuel.2020.119063.
  128. M. A. Deyab, "The inhibition activity of butylated hydroxytoluene towards corrosion of carbon steel in biodiesel blend B20," J. Taiwan Inst. Chem. Eng, vol. 60, pp. 369–375, 2016, doi: 10.1016/j.jtice.2015.10.035.
  129. M. A. R. Fazal, S. and Al-Zahrani, A. , "Overview of the interactions between automotive materials and biodiesel obtained from different feedstocks," Fuel Process. Technol, vol. 196, p. 106178, 2019, doi: 10.1016/j.fuproc.2019.106178.
  130. O. D. a. G. Samuel, M. , "Mechanical and corrosion properties of brass exposed to waste sunflower oil biodiesel-diesel fuel blends," Chem. Eng. Commun, vol. 206, pp. 682–694, 2019, doi: 10.1080/00986445.2018.1519508.
  131. B. N. A. Subedi, K. Joshi, S. and Bhattarai, J. , "Green approach to corrosion inhibition effect of vitex negundo leaf extract on aluminum and copper metals in biodiesel and its blend," Int. J. Corros. Scale Inhib, vol. 8, pp. 744–759, 2019, doi: 10.17675/2305-6894-2019-8-3-21, doi: 10.17675/2305-6894-2019-8-3-21.