Solvent free enzymatic transesterification of crude jatropha oil in packed bed reactor

Veny, H. and Aroua, M.K. and Sulaiman, N.M.N. (2010) Solvent free enzymatic transesterification of crude jatropha oil in packed bed reactor. In: 2nd International Conference on Chemical, Biological and Environmental Engineering, ICBEE 2010, 2010, Cairo.

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Abstract

In this study, we produce biodiesel from jatropha oil through enzymatic synthesis in a re circulated packed bed reactor (PBR). A solvent free system by three stepwise addition of one equivalent molar methanol in each step was chosen for this study. The enzyme was Lipozyme IM, a 1,3 regiospecific immobilized lipase from Mucor miehei. Initially, we scrutinized the appropriate amount of lipase by varied the lipase dosage from 5 to 20 based on Jatropha oil weight. Constant operating condition for all experiment was set to temperature of 45o C, PBR flow rate of 5 ml/min and 3 molar equivalent of methanol. The highest biodiesel yield of 54 was obtained at 10 of lipase dosage. We have also examined the effect of methanol addition time by conduct an experiment with one equivalent molar of methanol. The maximum conversion was found at 24 hours. However, a subsequent experiment carried out based on profile from those experiment, could only gave a biodiesel yield of 51. Afterwards, we observe the lipase stability in PBR solvent free system.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Conference code: 83351 Export Date: 21 April 2013 Source: Scopus Art. No.: 5653540 :doi 10.1109/ICBEE.2010.5653540 Language of Original Document: English Correspondence Address: Veny, H.; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia; email: myharumi@yahoo.com References: Chen, J.W., Wu, W.T., Regeneration of immobilized candida antarctica lipase for transesterification (2003) Journal of Bioscience and Bioengineering, 9 (5), pp. 466-469; Selmi, B., Thomas, D., Immobilized lipase-catalyzed ethanolysis of sunflower oil in a solvent-free medium (1998) J. Am. Oil Chem. Soc., 75, pp. 691-695; Hansen, T.T., Eigtved, P., A new immobilized lipase for interesterification and ester synthesis (1985) Proc.- World Conf. Emerging Technol. Fats Oils Ind., pp. 365-369. , Ed. B.A. Richard; Shah, S., Gupta, M.N., Lipase catalyzed preparation of biodiesel from Jatropha oil in a solvent free system (2007) Process BiochemiStry, 42, pp. 409-414; Hajar, M., Shokrollahzadeh, S., Vahabzadeh, F., Monazzami, A., Solvent free methanolysis of camola oil in a packed bed reactor with use of Novozyme 435 plus loofa (2009) Enzyme and Microbial Technology, 45, pp. 188-194; Laudani, C.G., Habulin, M., Knez, Z., Knez, G.D., Reverchon, E., Immobilized lipase mediated long chain fatty acid esterification in dense carbon dioxide: Bench scale packed bed reactor study (2007) Journal of Super Critical Fluids, 42, pp. 74-81; Fjerbaek, L., Christensen, K.V., Norddahl, B., A review of the current state of biodiesel production using enzymatic transesterification (2009) Biotechnology and Bioengineering, 102 (5), pp. 1298-1315 Sponsors: Asia-Pac. Chem., Biol. Environ. Eng. Soc. (APCBEES)
Uncontrolled Keywords: Biodiesel; Enzymatic transesterification; Lipozyme IM; Packed bed reactor; Solvent free; Enzymatic synthesis; Immobilized lipase; Jatropha oil; Lipozyme; Molar equivalent; Operating condition; Regiospecific; Solvent-free system; Chemical reactors; Environmental engineering; Enzyme activity; Methanol; Packed beds; Pebble bed reactors; Solvents; Synthetic fuels; Transesterification; Experiments.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 05:01
Last Modified: 11 Dec 2013 02:07
URI: http://eprints.um.edu.my/id/eprint/7423

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