Kullanılmış motor yağlarında polisiklik aromatik hidrokarbonların oluşum sürecinin izlenmesi

Abstract

Gasoline Engine Oil: Fractions Unused Dil 1000 2000 3DDD 400Dkm Aliphatic Aromatic Polar 66. DO 11.97 22. D2 3B.57 34.47 29.13 24.96 Diesel Engine Dil: After the fractionation, the aliph fractions uias subjected to capillary GC FID on a 25 m x D. 22mm i. d. capillary c with biphenyl group (SB Biphenyl 30) fo of PAH. 10 '^il sample solution bias inje into Hewlett Packard 5B9D GC operating temperature program of 6DDC (5 min) to at a ramp rate of 1 D C/min. The carrie nitrogen. Dedector and enjector temper 3DDDC. Compounds detected by FİD were using the Lee Linear Retention indices products. For this purpose benzene, na phenanthrene and chrysene were used as standarts- corresponding._to_ the._2DD,30D retention indices. atic and aromati: analysis with Dİumn coated r the presence cted on-column under a 3DDDC (10 min) r gas was atures were identified for PAH phthalene, internal and 400 linear The Lee's retention index which are used for the chromatographic identification following the seperation process are Limited with only 7DD compounds. This shows the limitation of the system. As the overall conclusion of this study, it is found that the distribution of aliphatics, aromatics and polars have differences.

As the increasing of the aging of the gasoline and diesel engine oils, the proportion of aromatics and pdars ete also increased while the proportion of aliphatic fractions decreased, The reesen of these improvement was mainly attributed tD the heating effect where further cracking, repolimerisation and cokification took place. A distinct differences uias also observed in t distribution of fractions of the gasolinE and dies engine oils. Aromatic fractions were more pronoun and these mere attributed to the cracking at the heteroatcm bridges. Increasing kinematic viscositiy, of the diesel oil confirm the oxidation in time and decreasing kinematic viscosity of the gasoline engine oil can bs explained by fuEİ dilution due to engine failure in the 1000,2000 and 3DD0km trials. xi Gasoline Engine Oil: Fractions Unused Dil 1000 2000 3DDD 400Dkm Aliphatic Aromatic Polar 66. DO 11.97 22. D2 3B.57 34.47 29.13 24.96 Diesel Engine Dil: After the fractionation, the aliph fractions uias subjected to capillary GC FID on a 25 m x D. 22mm i. d. capillary c with biphenyl group (SB Biphenyl 30) fo of PAH. 10 '^il sample solution bias inje into Hewlett Packard 5B9D GC operating temperature program of 6DDC (5 min) to at a ramp rate of 1 D C/min. The carrie nitrogen. Dedector and enjector temper 3DDDC. Compounds detected by FİD were using the Lee Linear Retention indices products. For this purpose benzene, na phenanthrene and chrysene were used as standarts- corresponding._to_ the._2DD,30D retention indices. atic and aromati: analysis with Dİumn coated r the presence cted on-column under a 3DDDC (10 min) r gas was atures were identified for PAH phthalene, internal and 400 linear The Lee's retention index which are used for the chromatographic identification following the seperation process are Limited with only 7DD compounds. This shows the limitation of the system. As the overall conclusion of this study, it is found that the distribution of aliphatics, aromatics and polars have differences. As the increasing of the aging of the gasoline and diesel engine oils, the proportion of aromatics and pdars ete also increased while the proportion of aliphatic fractions decreased, The reesen of these improvement was mainly attributed tD the heating effect where further cracking, repolimerisation and cokification took place. A distinct differences uias also observed in t distribution of fractions of the gasolinE and dies engine oils. Aromatic fractions were more pronoun and these mere attributed to the cracking at the heteroatcm bridges. Increasing kinematic viscositiy, of the diesel oil confirm the oxidation in time and decreasing kinematic viscosity of the gasoline engine oil can bs explained by fuEİ dilution due to engine failure in the 1000,2000 and 3DD0km trials. xi Gasoline Engine Oil: Fractions Unused Dil 1000 2000 3DDD 400Dkm Aliphatic Aromatic Polar 66. DO 11.97 22. D2 3B.57 34.47 29.13 24.96 Diesel Engine Dil: After the fractionation, the aliph fractions uias subjected to capillary GC FID on a 25 m x D. 22mm i. d. capillary c with biphenyl group (SB Biphenyl 30) fo of PAH. 10 '^il sample solution bias inje into Hewlett Packard 5B9D GC operating temperature program of 6DDC (5 min) to at a ramp rate of 1 D C/min. The carrie nitrogen. Dedector and enjector temper 3DDDC. Compounds detected by FİD were using the Lee Linear Retention indices products. For this purpose benzene, na phenanthrene and chrysene were used as standarts- corresponding._to_ the._2DD,30D retention indices. atic and aromati: analysis with Dİumn coated r the presence cted on-column under a 3DDDC (10 min) r gas was atures were identified for PAH phthalene, internal and 400 linear The Lee's retention index which are used for the chromatographic identification following the seperation process are Limited with only 7DD compounds. This shows the limitation of the system. As the overall conclusion of this study, it is found that the distribution of aliphatics, aromatics and polars have differences. As the increasing of the aging of the gasoline and diesel engine oils, the proportion of aromatics and pdars ete also increased while the proportion of aliphatic fractions decreased, The reesen of these improvement was mainly attributed tD the heating effect where further cracking, repolimerisation and cokification took place. A distinct differences uias also observed in t distribution of fractions of the gasolinE and dies engine oils. Aromatic fractions were more pronoun and these mere attributed to the cracking at the heteroatcm bridges. Increasing kinematic viscositiy, of the diesel oil confirm the oxidation in time and decreasing kinematic viscosity of the gasoline engine oil can bs explained by fuEİ dilution due to engine failure in the 1000,2000 and 3DD0km trials.