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Optimization of process variables on two-step microwave-assisted transesterification of waste cooking oil

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Abstract

Scale-up and commercialization of biodiesel is often delimited by costly feedstock that adds up to the process costs. These underlying issues demand the exploration of unconventional cheap feed to improve the process economics. Conversion of waste cooking oil (WCO) into biodiesel could reduce the process costs by 60–70%. However, the continuous exposure to heat during frying leads to oxidation as well increase in the free fatty acid (FFA) content which intensifies the time and energy required for transesterification. The present study analyzes the effect of parameters over the conversion of WCO (with 8.17% FFA) into biodiesel via two-step acid-alkali-based microwave-assisted transesterification. Response surface methodology (RSM) was used to optimize the oil:methanol volume ratio, microwave power, and reaction time during the acid-catalyzed esterification to bring down the FFA below 1%. Microwave irradiation of 250 W, with methanol:oil molar ratio of 19.57:1 [oil:methanol volume ratio of 1.31 (expressed as decimal)] and reaction time of 35 s, resulted in 0.082% of FFA. Alkali-catalyzed transesterification with methanol:oil molar ratio of 5:1 with 2% sodium hydroxide at 65 °C thereby produced fatty acid methyl esters (FAMEs) with the volumetric biodiesel yield of 94.6% in 30 min. Physiochemical properties of the transesterified WCO were well comparable with the biodiesel standards. The study highlights the essentiality of multivariate optimization for the esterification process that could aid in understanding the interactive effects of variables over FFA content. Such studies would benefit in scaling up of the transesterification process at industrial level by improving the economics of the overall bioprocess.

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References

  1. Ajala OE, Aberuagba F, Odetoye TE, Ajala AM (2015) Biodiesel: sustainable energy replacement to petroleum-based diesel fuel—a review. Chem Bio Eng Rev 2:145–156

  2. Asok R, Balasubramanian P, Karthickumar P (2013) Consolidated renewable energy—a future hawk-eyed energy in India. IJOART 2(2)

  3. Babel S, Arayawate S, Faedsura E, Sudrajat H (2018) Microwave-assisted transesterification of waste cooking oil for biodiesel production. In: Utilization and Management of Bioresources. Springer, Singapore, pp 165–174

  4. Balasubramanian P, Karthickumar P. (2012) Indian energy crisis—a sustainable solution. In: IEEE-International Conference on Advances in Engineering, Science and Management (ICAESM-2012). IEEE, pp 411–415

  5. Banani R, Youssef S, Bezzarga M, Abderrabba M (2015) Waste frying oil with high levels of free fatty acids as one of the prominent sources of biodiesel production. J Mater Environ Sci 6:1178–1185

  6. Behera B, Acharya A, Gargey IA, Aly N, Balasubramanian P (2019) Bioprocess engineering principles of microalgal cultivation for sustainable biofuel production. Bioresour Technol Rep 5(297):316

  7. Bhuiya MMK, Rasul MG, Khan MMK, Ashwath N, Azad AK (2016) Prospects of 2nd generation biodiesel as a sustainable fuel—part: 1 selection of feedstocks, oil extraction techniques and conversion technologies. Renew Sustain Energ Rev 55:1109–1128

  8. Bouaid A, El Boulifi N, Martinez M, Aracil J (2012) Optimization of a two-step process for biodiesel production from Jatropha curcas crude oil. Int J Low Carbon Technol 7:331–337

  9. Chai M, Tu Q, Lu M, Yang YJ (2014) Esterification pretreatment of free fatty acid in biodiesel production, from laboratory to industry. Fuel Process Technol 125:106–113

  10. Chen KS, Lin YC, Hsu KH, Wang HK (2012) Improving biodiesel yields from waste cooking oil by using sodium methoxide and a microwave heating system. Energy 38:151–156

  11. Chuah LF, Klemeš JJ, Yusup S, Bokhari A, Akbar MM (2017) Influence of fatty acids in waste cooking oil for cleaner biodiesel. Clean Technol Environ 19:859–868

  12. Dorni C, Sharma P, Saikia G, Longvah T (2018) Fatty acid profile of edible oils and fats consumed in India. Food Chem 238:9–15

  13. Elkady MF, Zaatout A, Balbaa O (2015) Production of biodiesel from waste vegetable oil via KM micromixer. J Chem 2015:1–9

  14. Gude VG, Grant GE (2013) Biodiesel from waste cooking oils via direct sonication. Appl Energ 109:135–144

  15. Hamze H, Akia M, Yazdani F (2015) Optimization of biodiesel production from the waste cooking oil using response surface methodology. Process Saf Environ 94:1–10

  16. Hong IK, Jeon H, Kim H, Lee SB (2016) Preparation of waste cooking oil based biodiesel using microwave irradiation energy. J Ind Eng Chem 42:107–112

  17. Islam MA, Magnusson M, Brown RJ, Ayoko GA, Nabi MN, Heimann K (2013) Microalgal species selection for biodiesel production based on fuel properties derived from fatty acid profiles. Energies 6:5676–5702

  18. Jaliliannosrati H, Amin NAS, Talebian-Kiakalaieh A, Noshadi I (2013) Microwave assisted biodiesel production from Jatropha curcas L. seed by two-step in situ process: optimization using response surface methodology. Bioresour Technol 136:565–573

  19. Knothe G (2012) Fuel properties of highly polyunsaturated fatty acid methyl esters. Prediction of fuel properties of algal biodiesel. Energy Fuel 26:5265–5273

  20. Kraiem T, Hassen AB, Belayouni H, Jeguirim M (2017) Production and characterization of bio-oil from the pyrolysis of waste frying oil. Environ Sci Pollut Res 24:9951–9961

  21. Maddikeri GL, Pandit AB, Gogate PR (2012) Intensification approaches for biodiesel synthesis from waste cooking oil: a review. Ind Eng Chem Res 51:14610–14628

  22. Mardhiah HH, Ong HC, Masjuki HH, Lim S, Lee HV (2017) A review on latest developments and future prospects of heterogeneous catalyst in biodiesel production from non-edible oils. Renew Sust Energ Rev 67:1225–1236

  23. Martinez-Guerra E, Gude VG (2014) Synergistic effect of simultaneous microwave and ultrasound irradiations on transesterification of waste vegetable oil. Fuel 137:100–108

  24. Noshadi I, Amin NAS, Parnas RS (2012) Continuous production of biodiesel from waste cooking oil in a reactive distillation column catalyzed by solid heteropolyacid: optimization using response surface methodology (RSM). Fuel 94:156–164

  25. Patil PD, Gude VG, Reddy HK, Muppaneni T, Deng S (2012) Biodiesel production from waste cooking oil using sulfuric acid and microwave irradiation processes. J Environ Prot 3:107–113

  26. Qasim M, Ansari TM, Hussain M (2018) Experimental investigations on a diesel engine operated with fuel blends derived from a mixture of Pakistani waste tyre oil and waste soybean oil biodiesel. Environ Sci Pollut Res 25:23657–23666

  27. Rangabhashiyam S, Behera B, Aly N, Balasubramanian P (2017) Biodiesel from microalgae as a promising strategy for renewable bioenergy production—a review. J Environ Biotechnol 6:260–269

  28. Raqeeb MA, Bhargavi R (2015) Biodiesel production from waste cooking oil. J Chem Pharma Res 7:670–681

  29. Sajjadi B, Aziz AA, Ibrahim S (2014) Investigation, modelling and reviewing the effective parameters in microwave-assisted transesterification. Renew Sustain Energ Rev 37:762–777

  30. Schenk PM, Thomas-Hall SR, Stephens E, Marx UC, Mussgnug JH, Posten C, Kruse O, Hankamer B (2008) Second generation biofuels: high-efficiency microalgae for biodiesel production. Bioenerg Res 1:20–43

  31. Singh-Ackbarali D, Maharaj R, Mohamed N, Ramjattan-Harry V (2017) Potential of used frying oil in paving material: solution to environmental pollution problem. Environ Sci Pollut Res 24:12220–12226

  32. Sodhi AK, Tripathi S, Kundu K (2017) Biodiesel production using waste cooking oil: a waste to energy conversion strategy. Clean Technol Envir 19:1799–1807

  33. Srivastava R, Singh A, Gaurav K (2018) Advancement in catalysts for transesterification in the production of biodiesel: a review. J Biochem Technol 7:1148–1158

  34. Suppalakpanya K, Ratanawilai S, Nikhom R, Tongurai C (2011) Production of ethyl ester from crude palm oil by two-step reaction using continuous microwave system. Songklanakarin J Sci Technol 33:79–86

  35. Talebian-Kiakalaieh A, Amin NAS, Zarei A, Noshadi I (2013) Transesterification of waste cooking oil by heteropoly acid (HPA) catalyst: optimization and kinetic model. Appl Energ 102:283–292

  36. Tangy A, Pulidindi IN, Perkas N, Gedanken A (2017) Continuous flow through a microwave oven for the large-scale production of biodiesel from waste cooking oil. Bioresour Technol 224:333–341

  37. Thoai DN, Tongurai C, Prasertsit K, Kumar A (2019) Review on biodiesel production by two-step catalytic conversion. Biocatal Agric Biotechnol 18:1–8

  38. Urrutia C, Sangaletti-Gerhard N, Cea M, Suazo A, Aliberti A, Navia R (2016) Two step esterification–transesterification process of wet greasy sewage sludge for biodiesel production. Bioresour Technol 200:1044–1049

  39. Vasantha VT, Shamshuddin SZ, Serrao RS, D’Souza JQ (2017) Microwave assisted transesterification of waste cooking oil over modified forms of zirconia coated on honeycomb monolith. Indian J Chem 56:373–378

  40. Xiang Y, Xiang Y, Wang L (2017) Microwave radiation improves biodiesel yields from waste cooking oil in the presence of modified coal fly ash. J Taibah Univ Sci 11:1019–1029

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Acknowledgements

The authors thank the Ministry of Human Resources Development (MHRD) of Government of India (GoI) for sponsoring the fellowship of the first and second authors. The authors are thankful to the National Institute of Technology Rourkela for providing the waste cooking oil and research facilities.

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Correspondence to Balasubramanian Paramasivan.

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Supraja, K.V., Behera, B. & Paramasivan, B. Optimization of process variables on two-step microwave-assisted transesterification of waste cooking oil. Environ Sci Pollut Res (2019). https://doi.org/10.1007/s11356-019-05384-8

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Keywords

  • Waste cooking oil
  • Biodiesel
  • Free fatty acids
  • Optimization
  • Transesterification
  • FAME