Manganese carbonate-zinc glycerolate, synthesis, characterization and application as catalyst for transesterification of soybean oil
In this study, mixed system containing manganese carbonate (MnCO3) and zinc glycerolate (ZnGly) was synthesized, and tested as solid catalyst for transesterification of soybean oil and biodiesel production. The samples of MnCO3/ZnGly before and after usage for transesterification process we...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Association of the Chemical Engineers of Serbia
2016-01-01
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| Series: | Chemical Industry and Chemical Engineering Quarterly |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2016/1451-93721600008Z.pdf |
| Summary: | In this study, mixed system containing manganese carbonate (MnCO3) and zinc
glycerolate (ZnGly) was synthesized, and tested as solid catalyst for
transesterification of soybean oil and biodiesel production. The samples of
MnCO3/ZnGly before and after usage for transesterification process were
characterized using different techniques: determination of basic strength,
determination of specific surface area according to Brunauer-Emmett-Teller
(BET), measuring the mass change using thermal gravimetric analysis (TGA),
investigating the solid phase content and presence of different specific
elements and groups by X-Ray diffraction (XRD), the Fourier transform
infrared (FT-IR) spectroscopy, the scanning electron microscopy (SEM) with
energy dispersive spectroscopy (EDS). The effects of different working
parameters of transesterification were also investigated: temperature
(438-458K), duration of transesterification (0-3.5h), methanol to oil molar
ratio (12:1-36:1) and used amounts of catalyst (1-5 mass%). The reusability
and stability of MnCO3/ZnGly were analyzed and obtained results showed that
MnCO3/ZnGly exhibited a good activity with 100% TG conversion and 81.5% FAME
yield with fresh catalyst, and can give 95-100% TG conversion and 62-78% FAME
yield after 13 repeated use of same amount of catalyst without regeneration
processes. Content of Mn and Zn in biodiesel and glycerol was analyzed by
ICP-AAS after each reuse of catalyst. |
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| ISSN: | 1451-9372 2217-7434 |