Venetia SANDU, Daniela SOVA, Mircea IVANOIU, LaurenTiu MANEA<br>Chemical Analysis of Retail Automotive Gasolines <br>on Romanian Market

Venetia SANDU, Daniela SOVA, Mircea IVANOIU, LaurenTiu MANEA
Chemical Analysis of Retail Automotive Gasolines
on Romanian Market

Abstract:

Engineering, 124 Mamaia Blvd., 900527, Constanta, Romania A gasoline quality survey from 48 retail stations belonging to the first top four oil companies present on Romanian market was conducted, in 2013, being investigated for 8 commercial brands the chemical composition (aromatics, olefins, alcohols, ethers, oxygen content), the antiknock resistance, the distillation profile and the vapour pressure, and compared with the limits from 2009/30/EC Directive. The results were interpreted in terms of conformity with standards, impact on engine performance and environment. Full compliance with Fuel Quality Directive requirements for distillation points (E100, E150), vapour pressure, olefins, benzene, oxygen, and ether content was noticed; all but one for aromatics content, in which one brand exceeded with 0.5% the limit, still in the range of apparatus error. The ethers present in gasoline were MTBE (in all the samples), ETBE and TAME (a quarter of all samples) which increased the oxygen content up to the mean of 1.86%. RON for all the tested premium gasolines were compliant, but for regular ones there were a slight difference of 0.1 (94.9, less than limit 95) for 3 out of 4 producers. Regarding MON values, a brand was obviously under the limit whereas other two were close to the correlation method limit (84.8-85). Both density and final distillation point have met the limits of EN 228 transposed in the national standard. No detectable signs of adulteration were reported. Keywords: gasoline, quality survey, standard conformity, fuel adulteration, spark engine

Issue: 2016, Volume 67, Issue 12

Pages:

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