Biodiesel production using immobilized lipase supported on a zirconium-pillared clay. Effect of the immobilization method

J. A. Colín-Luna, E. G. Zamora-Rodea, M. M. González-Brambila, E. Barrera-Calva, R. Rosas-Cedillo, A. K. Medina-Mendoza, J. C. García-Martínez

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Abstract

© 2018 Walter de Gruyter GmbH, Berlin/Boston. Edible oils, used in restaurants and households, have become a potential source of environmental pollution because their residuals are indiscriminately poured into rivers and lakes. One cost-effective and sustainable way to treat this waste is using this biomass in the production of biofuels, such as biodiesel. The main reactions for obtaining biodiesel are catalyzed in a homogeneous phase, using basic or acid solutions (NaOH or H2SO4, respectively) or in a heterogeneous phase, using a porous material with or without metals. One interesting reaction, owing to its low energy consumption, is carried out using biocatalysts of enzymes immobilized in porous materials. In this work, a porcine pancreatic lipase (PPL) was immobilized in a zirconium-pillared clay (Zr-PILC) by means of two syntheses: adsorption (PPL/Zr-PILC ADS) and cross-linking (PPL/Zr-PILC CL). The biocatalysts were used in the transesterification of canola oil. The amount of methyl esters was produced in the order Zr-PILC ≈ PPL « PPL/Zr-PILC CL « PPL/Zr-PILC ADS. According to these results, the activity and selectivity are a function of the method of synthesis and show the potential of these biocatalysts to transform waste oil in biodiesel at low cost by means of a sustainable process.
Original languageAmerican English
JournalInternational Journal of Chemical Reactor Engineering
DOIs
StatePublished - 17 Jul 2018
Externally publishedYes

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