Transesterification of vegetable oil to biodiesel using heterogeneous base catalyst
2004; Elsevier BV; Volume: 93-95; Linguagem: Inglês
10.1016/j.cattod.2004.06.007
ISSN1873-4308
AutoresHak Joo Kim, Bo-Seung Kang, Min Ju Kim, Young Moo Park, Deog-Keun Kim, Jin-Suk Lee, Kwan Young Lee,
Tópico(s)Lubricants and Their Additives
ResumoBiodiesel produced by the transesterification of vegetable oils (VOs) is a promising alternative fuel to diesel regarding the limited resources of fossil fuel and the environmental concerns. In this work, an environmentally benign process for the production of biodiesel from VOs using heterogeneous catalyst was developed. Na/NaOH/γ-Al2O3 heterogeneous base catalyst was firstly adopted for the production of biodiesel. A study for optimizing the reaction conditions such as the reaction time, the stirring speed, the use of co-solvent, the oil to methanol ratio, and the amount of catalyst, was performed. The Na/NaOH/γ-Al2O3 heterogeneous base catalyst showed almost the same activity under the optimized reaction conditions compared to conventional homogeneous NaOH catalyst. The basic strength of Na/NaOH/γ-Al2O3 catalyst was estimated and the correlation with the activity towards transesterification was proposed.
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