PRODUCTION OF BIOADDITIVE ETHYL LEVULINATE IN THE CATALYTIC MEMBRANE REACTOR

Year 2016, Volume: 1 Issue: 1, 1 - 12, 23.02.2017

Derya Unlu , Nilufer Hilmioglu

Abstract

Fuel bioadditive ethyl levulinate is the biofuel of the future. Reactants of ethyl levulinate are produced from biomass. Therefore, esterification of ethanol and levulinic acid is an environmentally friendly green process for the production of ethyl levulinate.  In this study, synthesis of ethyl levulinate was carried out in the batch reactor and in the catalytic membrane reactor by using sulfated zirconia loaded catalytic membrane. Catalytic membrane reactor (CMR) has higher conversion values than the conventional batch reactor. Optimum operation conditions were specified as T=70°C, M=1:1, and C_cat=8 g/L. The levulinic acid conversion reached 36 % and 89% in the batch reactor (BR) and in the CMR, respectively.

References

• Wang Z, Lei T, Liu L, Zhu J, He X, Li Z. Performance Investigations Of A Diesel Engine Using Ethyl Levulinate-Diesel Blends. BioResources. 2012; 7(4):5972-5982.
• Kashinath S, Manan Z, Hashim H, Alwi S. Design of green diesel from biofuels using computer aided technique. Computers & Chemical Engineering. 2012 June;41:88–92.
• Nandiwale K, Sonar S, Niphadkar P, Joshi P, Deshpande S, Patil V, Bokade V. Catalytic upgrading of renewable levulinic acid to ethyl levulinate biodiesel using dodecatungstophosphoricacid supported on desilicated H-ZSM-5 as catalyst. Applied Catalysis A: General. 2013 June;460–461:90–98.
• Nandiwale K, Niphadkar P, Deshpande S, Bokade V. Esterification of renewable levulinic acid to ethyl levulinate biodiesel catalyzed by highly active and reusable desilicated H-ZSM-5. Journal of Chemical Technology and Biotechnology. 2014 October; 89:1507-1515.
• Fernandes DR, Rocha AS, Mai EF, Mota JA, Silva V. Levulinic acid esterification with ethanol to ethyl levulinate production over solid acid catalysts. Applied Catalysis A: General. 2012 May;425–426:199–204.
• Smitha B, Suhanya D, Sridhar S, Ramakrishna M. Separation of organic–organic mixtures by pervaporation a review. Journal of Membrane Science. 2004 September;241:1-21.
• Khajavi S, Jansen JC, Kapteijn F. Application of a sodalite membrane reactor in esterification-Coupling reaction and separation. Catalysis Today. 2010 October;156:132–139.
• Peters TA. Catalytic pervaporation membranes for close integration of reaction and separation, Phd Thesis, Technische Universiteit Eindhoven, Eindhoven, 2006.
• Sridhar S, Ganga D, Smitha B, Ramakrishna M. Dehydration of 2-Butanol by Pervaporation Through Blend Membranes of Chitosan and Hydroxy Ethyl Cellulose. Separation Science and Technology. 2007 Feb; 40:2889-2908.
• Kalyani S, Smitha B, Sridhar S, Krishnaiah A. Blend membranes of sodium alginate and hydroxyethyl cellulose for pervaporation-based enrichment of t- butyl alcohol. Carbohydrate Polymers. 2006 May;64:425–432.
• Liu QL, Chen HF. Modeling of esterification of acetic acid with n-butanol in the presence of Zr(SO4)2.4H2O coupled pervaporation. Journal of Membrane Science. 2002 Feb;196:171-178.
• Çimenler Ü, Investıgatıon of the esterıfıcatıon reactıon for the productıon of butyl propionate in pervaporation membrane reactor using Amberlite Ir-120 catalyst, Master Thesis, Yıldız Technical University, Graduate School of Natural and Applied Sciences, İstanbul, 2011.