Konferensartikel

Lipase Catalyzed Transesterification of Tung and Palm Oil for Biodiesel

Ya-Nan Wang
The Experimental Forest, National Taiwan University, Nan-Tou, Taiwan \ School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan

Ming-Hsun Chen
School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan

Chun-Han Ko
School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan \ Bioenergy Research Center, National Taiwan University, Taipei, Taiwan

Pei-Jen Lu
Department of Chemical Engineering, Tatung University, Taipei, Taiwan

Jia-Ming Chern
Department of Chemical Engineering, Tatung University, Taipei, Taiwan

Chien-Hou Wu
Department of Biomed. Engr. & Env. Sci., National Tsing Hua Univ., Hsin-Chu, Taiwan

Fang-Chih Chang
The Instrument Center, National Cheng Kung University, Tainan, Taiwan

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp1105787

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:12, s. 87-92

Visa mer +

Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

The tung oil and palm oil were subjected to enzymatic transesterification. Immobilized lipase (Novozyme 435) was used at 10 % w/v vs. oil. The reactions were conducted at 40oC to 60oC with methanol and ethanol at a molar ratio of 1:3 for 24 hours. Temperature was found critical for the conversion efficiencies. Under 55oC after 24 hour; the optimal conversions of tung oil and palm oil fatty acid methyl esters (FAMEs) were 48 % and 63 %. The optimal conversions for tung oil and palm oil fatty acid ethyl esters (FAEEs) at 50oC were 20 % and 55 % respectively at 50oC. It was found the effciencies of FAEEs conversion were lower than the ones of FAMEs conversion. It was found that the tung oil consisted of 80 % unsaturated fatty acids; and palm oil consisted by just over 50% saturated fatty acids; by contrast. The results showed that the fatty acid composition of oil could directly impact on the efficiencies of enzymatic transesterification. A numerical model was derived to describe the reaction in this two-phase system. It was found that fitted mass transfer coefficients and rate constants of the pseudo-steady-state second order reaction were consistent to experimental results.

Nyckelord

Biodiesel; Lipase; Palm oil; Transesterification; Tung oil

Referenser

[1] E. Hernandez-Martin; C. Otero; Different enzyme requirements for the synthesis of biodiesel: Novozym 435 and Lipozyme TL IM. Bioresource Technology 99; 2008; pp. 277-286. doi: 10.1016/j.biortech.2006.12.024.

[2] S. V. Ranganathan; S. L. Narasimhan; K. Muthukumar; An overview of enzymatic production of biodiesel; Bioresource Technology 99; 2008; pp. 3975-3981. doi: 10.1016/j.biortech.2007.04.060.

[3] V. M. Balcao; A. L. Paiva; F. X. Malcata; Bioreactors with immobilized lipases: state of the art; Enzyme and Microbial Technology 18; 1996; pp. 392-416. doi: 10.1016/0141-0229(95)00125-5.

[4] J. W. Chen; W. T. Wu; Regeneration of immobilized Candida antarctica lipase for transesterification; Journal of Bioscience and Bioengineering 95; 2003; pp. 466-469.

[5] J; Park; D. Kim; Z. Wang; P. Lu; S. Park; J. Lee; Production and characterization of biodiesel from tung oil; Biotechnology for Fuels and Chemicals 148; 2008; pp. 109-117.

[6] G. Z. Xu; B. L. Zhang; H. L. Liu; A study on immobilized lipase catalyzed transesterification reaction of tung oil; Agricultural Science in China 39; 2006; pp. 2089-2094.

[7] H. Noureddini; D. Zhu; Kinetics of transesterification of soybean oil; Journal of the American Oil Chemists’ Society 74; 1997; pp. 1457-1463.

[8] D. Darnoko; M. Cheryan; Kinetics of palm oil transesterification in a batch reactor; Journal of the American Oil Chemists’ Society 77; 2000; pp. 1263-1267.

[9] B. Freedman; R. O. Butterfield; E. H. Pryde; Transesterification kinetics of soybean oil; Journal of the American Oil Chemists’ Society; 1986; 63; pp. 1375-1380.

[10] V. Calabro; E. Ricca; M. G. De Paola; S. Curcio; G. Iorio; Kinetics of enzymatic trans-esterification of glycerides for biodiesel production; Bioprocess and Biosystems Engineering; 2010; 33; pp. 701-710. doi: 10.1007/s00449-009-0392-z.

[11] S. Hari Krishna; N. G. Karanth; Lipases and lipase-catalyzed esterification reactions in nonaqueous media; Catalysis Reviews; 2002; 44; pp. 499-591. doi: 10.1081/CR-120015481.

[12] A. Randunz; G. H. Schmid; Wax esters and triglycerides as storage substances in seed of Buxus sempervirens; 2000; European Journal of Lipid Science and Technology; 102; pp. 734-738. doi: 10.1002/1438-9312(200012)102:12<734::AID-EJLT734>3.0.CO;2-2.

[13] S. V. Ranganathan; S. L. Narasimhan; K. Muthukumar; An overview of enzymatic production of biodiesel; Bioresource Technology; 2008; 99; pp. 3975-3981. doi: 10.1016/j.biortech.2007.04.060.

[14] S. Shah; M. N. Gupta; Lipase catalyzed preparation of biodiesel from Jatropha oil in a solvent free system; Process Biochemistry; 2007; 42; pp. 409-414. doi: 10.1016/j.procbio.2006.09.024.

[15] Y. Liu; H. Tan; X. Zhang; Y. Yan; B.H. Hameed; Effect of monohydric alcohols on enzymatic transesterification for biodiesel production; Chemical Engineering Journal; 2010; 157; pp. 223–229. doi: 10.1016/j.cej.2009.12.024.

Citeringar i Crossref