Humanity is facing problem of obtaining alternative fuels and with this soil infertility closely interrelated. And the most favorable source of energy is bio fuel, for which the technical crops are grown; it means agricultural land removed from the sequence which gives reason for rise in food prices. There is a vicious circle: increase in manufacture – increase in energy consumption – increase in release of greenhouse gases – use of bio-fuels – removal of turnover of land for applied crops – decrease in yield and hence rise in food prices.
Bio fuel is any combustible material which is obtained from the living components of our ecosystem. The main way of obtaining biodiesel fuel “Biodiesel” is the transesterification of vegetable oils below alcohols into monoalkylesters, with the passage of the reaction of the exchange of structural elements of natural triglycerides to the fragments of lower alcohols C1-C5.
At the same time, a number of new technological factors have been identified that determine the ecological compatibility and efficiency of the Biodiesel synthesis. Given the amphoteric character of the lower alcohols, this is the presence of the traditional basic (KOH, NaOH), or acid (H2SO4) catalysis. As a catalyst, oxides of zirconium and titanium, as well as alkali metal salts on an Al2O3 basis, were also studied.