engleski

Use of NMR in Biodiesel Synthesis

The oil industry is increasingly preoccupied with the topic of biofuels, due to the regulatory and general social pressures. In 2016, the share of the transport sector in the total emissions of greenhouse gases in the European Union (EU) was 27%, of which nearly 72% is from the road transport. To reduce the impact of the transport sector on the global warming and climate changes, the EU targets prescribe the reduction of greenhouse gas emissions by 30% by 2030 compared to the level in 2005. Therefore, it is necessary to use non-fossil fuels and biofuels are currently being considered as the most plausible alternative fuel. One of the most commonly used biofuels in the transport sector is biodiesel. It can be used as a pure biodiesel (B100) in internal combustion engines, but it is commonly used as a blend with diesel fuel (up to 7 vol%). The cost of raw materials contributes the most in the total price of biofuels, so the use of waste oils and animal fats as a starting material is highly desirable. The main advantage of the aforementioned raw materials is that their use reduces waste from one industry and turns it into the raw material (profit) for the other, which reduces the expenses.In our studies we synthesize alternative biodiesels from different feedstock (fresh and used oil) and study the influence of reaction parameters on reaction conversion to determine optimal conditions for their synthesis. We employ 1H NMR as a fast and versatile technique to determine the conversion and initial purity of synthetized biodiesels. In this lecture results form our studies with an emphasis on 1H NMR analysis will be presented.

biodiesel ; NMR

nije evidentirano