Determination of EtG in gasoline blends

Continuous development and demand for more sustainable energy sources are driving the use of biofuels. One such biofuel could be the product of the EtG (Etha-nol-to-Gasoline) process. Compared to ethanol, this product has several application advantages, such as full compatibility with hydrocarbon fuel and the possibility of higher content in automotive gasoline. However, the disadvantage of this product is the difficulty in determining its content in motor gasoline, due to the high similarity of these fuels. Existing methods of determination using radiocarbon analysis are poorly developed, and quite expensive, while all alternative methods have not been sufficiently explored. This paper outlines the possibilities of determining EtG in blends with fossil gasoline using spectroscopic and chromatographic methods as well as the use of a tracer that could be added to the EtG product.