Synthesis of biodiesel from waste cooking oil catalyzed by β-cyclodextrin modified Mg–Al–La composite oxide

In this study, Mg–Al–La composite oxide loaded with ionic liquid [Bmim]OH was used as a catalyst for the synthesis of fatty acid isobutyl ester (FAIBE) via transesterification between waste cooking oil and isobutanol. Mg–Al–La composite oxide was synthesized from the β-cyclodextrin (β-CD) intercalation modification of Mg–Al–La layered double hydroxides. The structure of the catalyst was characterized via XRD, BET and EDS. The results showed that the interlayer space of the catalyst was increased due to β-CD intercalation modification. The IL/CD–Mg–Al–La catalyst exhibited significant catalytic activity and regeneration performance in transesterification due to large interlayer space and strongly alkaline ionic liquid. The yield of FAIBE achieved was 98.3% under the optimum reaction condition and 95.2% after regeneration for six times. The viscosity–temperature curve of FAIBE was determined and the phase transition temperature was −1 °C. The pour point of FAIBE was only −10 °C, which exhibited excellent low temperature fluidity.

[1]  Jingyi Yang,et al.  Basic ionic liquid immobilized oxides as heterogeneous catalyst for biodiesel synthesis from waste cooking oil , 2016 .

[2]  E. Muniz,et al.  Supercritical ethanolysis for biodiesel production from edible oil waste using ionic liquid [HMim][HSO4] as catalyst , 2016 .

[3]  Jingyi Yang,et al.  Preparation and characterization of fluorine modified oxides for transesterification , 2015 .

[4]  M. Ghasemi,et al.  Transesterification of Waste Cooking Oil to Biodiesel Using KOH/γ-Al2O3 Catalyst in a New Two-Impinging-Jets Reactor , 2014 .

[5]  Jingyi Yang,et al.  Basicity–FAME yield correlations in metal cation modified MgAl mixed oxides for biodiesel synthesis , 2014 .

[6]  M. Kogan,et al.  Selective nanodecoration of modified cyclodextrin crystals with gold nanorods. , 2013, Journal of colloid and interface science.

[7]  Xiaoqiang Jia,et al.  Engineering Bacillus subtilis for isobutanol production by heterologous Ehrlich pathway construction and the biosynthetic 2-ketoisovalerate precursor pathway overexpression , 2011, Applied Microbiology and Biotechnology.

[8]  D. Aranda,et al.  Biodiesel production from soybean oil and methanol using hydrotalcites as catalyst , 2010 .

[9]  Yijun Liu,et al.  Transesterification of poultry fat with methanol using Mg–Al hydrotalcite derived catalysts , 2007 .

[10]  I. Mourtzinos,et al.  Study of the solubility, antioxidant activity and structure of inclusion complex of vanillin with β-cyclodextrin , 2007 .

[11]  Karen Wilson,et al.  Structure-reactivity correlations in MgAl hydrotalcite catalysts for biodiesel synthesis , 2005 .

[12]  S. Vasudevan,et al.  Orientational dynamics of anthracene in a cyclodextrin functionalized layered solid. , 2005, The journal of physical chemistry. B.

[13]  J. Besse,et al.  Syntheses and Thermal and Chemical Behaviors of Tartrate and Succinate Intercalated Zn(3)Al and Zn(2)Cr Layered Double Hydroxides. , 1998, Inorganic chemistry.

[14]  William Jones,et al.  Synthesis and Properties of Terephthalate and Benzoate Intercalates of Mg−Al Layered Double Hydroxides Possessing Varying Layer Charge , 1996 .

[15]  Fabrizio Cavani,et al.  Hydrotalcite-type anionic clays: Preparation, properties and applications. , 1991 .