From glycerol as the by-product of biodiesel production to value-added monoacetin by continuous and selective esterification in acetic acid

Hajar Rastegari; Hassan S. Ghaziaskar

Journal of Industrial and Engineering Chemistry, Vol.21, 856-861, January, 2015

DOI10.1016/j.jiec.2014.04.023 Export Citation

From glycerol as the by-product of biodiesel production to value-added monoacetin by continuous and selective esterification in acetic acid

Hajar Rastegari, and Hassan S. Ghaziaskar^†

Department of Chemistry, Isfahan University of Technology (IUT), Isfahan, 84156-83111, Islamic Republic of Iran

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A continuous and selective method for monoacetin synthesis was developed. Effects of the process parameters including reaction temperatures (100-140 ℃), acetic acid to glycerol mol ratios (1-3), feed flow rates (0.2-0.6 mL min-1), and pressures (1-160 bar) on the glycerol conversion and themonoacetin selectivity were studied. At the optimum conditions of 100 ℃, acetic acid to glycerol mol ratio of 1, feed flow rate of 0.6 mL min-1, and 1 bar, the glycerol conversion and monoacetin selectivity was, respectively, 53% and 93%. The effect of water amount in the feed (3-15%)was also studied at the optimum conditions.

Keywords:Continuous glycerol esterification;Selective glycerol esterification;Monoacetin;Acetic acid;Biodiesel by-product

[References]

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[Referenced By]

[1] Chin CW, Dasari MA, Suppes GJ, Sutterlin WR, AIChE J., 52(10), 3543 (2006)

[2] Glycerol Purification, EET Corp., Available at

[3] Katryniok B, Paul S, Belliere-Baca V, Rey P, Dumeigni F, Green Chem., 12, 2079 (2010)

[4] Rahmat N, Abdullah AZ, Mohamed AR, Renew. Sust. Energ. Rev., 14, 987 (2010)

[5] Banavali RM, Hanlon RT, Schultz AK, US Patent US 7,534,923 B2, 2009.

[6] Fan X, Burton R, Zhou Y, Sci. J., 3, 17 (2010)

[7] Dorado MP, Cruz F, Palomar JM, Lopez FJ, Renew. Energy, 31(8), 1231 (2006)

[8] Smith PC, Ngothai Y, Nguyen QD, O'Neill BK, Renew. Energy, 35(6), 1145 (2010)

[9] Lilja J, Aumo J, Salmi T, Murzin DY, Maki-Arvela P, Sundell M, Ekman K, Peltonen R, Vainio H, Appl. Catal. A: Gen., 228(1-2), 253 (2002)

[10] Goncalves VLC, Pinto BP, Silva JC, Mota CJA, Catal. Today, 133-135, 2008 (673)

[11] Dosuna-Rodriguez I, Gaigneaux EM, Catal. Today, 195(1), 14 (2012)

[12] Rezayat M, Ghaziaskar HS, Green Chem., 11, 710 (2009)

[13] Goncalves CE, Laier LO, Cardoso AL, da Silva MJ, Fuel Process. Technol., 102, 46 (2012)

[14] Wang S, Guin JA, Chem. Commun., 24, 2499 (2000)

[15] Mallick S, Parida KM, Catal. Commun., 8, 889 (2007)

[16] Reddy BM, Patil MK, Reddy BT, Catal. Lett., 125(1-2), 97 (2008)

[17] Peters TA, Benes NE, Holmen A, Keurentjes JTF, Appl. Catal. A: Gen., 297(2), 182 (2006)

[18] Lu J, Boughner EC, Liotta CL, Eckert CA, Fluid Phase Equilib., 198(1), 37 (2002)

[19] Saka S, Isayama Y, Ilham Z, Xin JY, Fuel, 89(7), 1442 (2010)

[20] Wei CY, Huang TC, Chen HH, J. Chem., article ID of 789594 (2013)

[21] Yu CC, Lee YS, Cheon BS, Lee SH, Bull. Korean Chem. Soc., 24, 1229 (2003)

[22] Liao XY, Zhu YL, Wang SG, Chen HM, Li YW, Appl. Catal. B: Environ., 94(1-2), 64 (2010)

[23] Ahn JH, Kolvenbach R, Neudeck C, Al-Khattaf SS, Jentys A, Lercher JA, J. Catal., 311, 271 (2014)

[24] Smith MB, March J, March’s Advanced Organic Chemistry, Reactions, Mechanisms and Structure, sixth ed., John Wiley and Sons, Inc. Publication, New Jersey, 2007, pp. 1402-1403.