Modification of motor gasoline with bioethanol in the cavitation field

Abstract

The article presents the results of the study on the influence of bioethanol content and parameters of cavitation field on the octane number of motor natural gasoline. The effects of the parameters of cavitation field on the modification of fuel and the changes of qualitative and quantitative composition of gasoline were investigated. The influence of the content of a biocomponent on the increase in the octane number was established. It was stated that the problem of the phase separation in alcohol-gasoline mixture can be solved by means of dynamic cavitation. The paper presents the results of the study of the change of octane number as a function of the intensity of cavitation treatment for gas condensate gasoline with addition of bioethanol. The physical stability of gas condensate and bioethanol mixture after cavitation treatment is investigated. It was shown that the gas condensate gasoline modified with bioethanol and cavitation field can be used as a high-quality motor gasoline. It was stated that low-octane gas condensate gasoline can be transformed into high-quality motor fuel by means of modification with bioethanol in the cavitation field. It was established that the alcohol-gasoline cavitation treatment leads to the homogenization and provides at least 30 days' mixture stability before separation. With increasing bioethanol content in the mixture, the number of cavitation cycles (intensity) required to achieve a constant octane number value decreases from 8 cycles for gas condensate gasoline without bioethanol to 4 cycles at the content of bioethanol of 3% and above.