The effect of sulfur compounds on the lubricity of diesel fuels
In the article provides overview of the results of studying the effect of organosul-fur compounds in diesel _ fuels on their lubricity. The first investigations of the lubricity fuels were held in the west in the 1960s due to the rapid wear jet engine parts using hydrotreated jet _ fuel. In Russia the _ first work about lubricity of diesel _ fuels were started in the 1970s. Many researchers had_ found a positive relationship between the content of total sulfur and anti-wear properties of diesel fuels. But the influence of this parameter (total sulfur content) is mediated by the presence of organic compounds of nitrogen and oxygen, whose presence causes the good lubricity of diesel _ fuels. In the works of Azev V.S. and Sereda A. V. _ for mercaptans, organic sulfides and disulfides established negative effect on the lubricity of low-sulfur diesel fuels, and absence any effect for the thiophene. There is presence a maximum wear scar diameter for all investigated wear versus of sulfur concentration, after which the wear decreases with increasing concentration of the test compound. The highest abrasion caused mercaptans, the lowest - disulfides. Azev V.S. and Sereda A. V. to establish the mechanism of influence sulfur compound on the lubricity of the fuel studied X-ray photoelectron spectra tribolayers which are formed in the highest and lowest wear. It has been _ founded that tribolayers in the area of maximum wear are less thick and content much sulphate, which are formed during the decomposition of studied organic compounds. Produced sulfates destroy the structure of tribolayers, that play a role gasket between the rubbing parts. But this does not explain the negative effect of the compounds studied in the anti-wear properties. By the method of chromatographic and GC-mass spectrometric methods it was established that sulfur in a hydrotreated diesel fuel is mainly in the form of benzothio-phene, dibenzothiophene, and their methyl derivatives with different numbers of sub-stituents. Not well studied experimentally the role of these aromatic sulfur compounds in the formation of anti-wear properties of diesel fuels. A number of researchers implies the absence of any effect of these compounds on the lubricity. Considering the positive effects of the aromatic compounds on the wear properties of diesel fuels it can also be expected positive effect of aromatic sulfur compounds on the lubricity. The study of the mechanisms of influence of sulfur compounds will allow a better understanding of changes in anti-wear properties of diesel fuels in the process of recycling.
Keywords
смазывающая способность,
дизельные топлива,
сераор-ганические соединения,
сера,
сульфиды,
меркаптаны,
тиофен,
lubricity,
diesel fuel,
wear,
organosulfur compounds,
sulfur,
sulfides,
mercaptans,
thiopheneAuthors
| Shevchenko Gennagiy A. | Tomsk Polytechnic University | shevchenko_gena@mail.ru |
| Krivtsova Nadezhda I. | Tomsk Polytechnic University | shevchenko_gena@mail.ru |
Всего: 2
References
Митусова Т.М., Полина Е.В., Калинина М.В. Современные дизельные топлива и присадки к ним. М. : Техника, 2002. 64 с.
Crown D., Sefcik L., Warfield C. Hockert Uniformlaws and regulations in the areas of legal metrology and engine fuel quality // National Institute of Standards and Technology. Gaithersburg. MD, 2006.
Hsieh P.Y., Bruno T.J. A perspective on the origin of lubricity in petroleum distillate motor fuels // Fuel Processing Technology. 2015. Vol. 129. P. 52-60.
Калинина М.В. Улучшение смазывающих свойств дизельных топлив : дис.. канд. техн. наук. М., 2001. 161 с.
Martel C.R., Petrarca J., Bradley R.P., McCoy J.R. Aircraft turbine engine fuel corrosion inhibitors and their effects on fuel properties, AFAPL-TR-74-20, Air Force Aero Propulsion Laboratory, Wright-Patterson AFB, OH. 1974. 34 р.
Grabel L. Lubricity properties of high temperature jet fuel, NAPTC-PE-112. Trenton, NJ : Naval Air Propulsion Test Center, 1977. 40 p.
Данилов А.М. Присадки к топливам как решение химмотологических проблем // Хи мия и технология топлив и масел. 2014. Т. 585, № 5. С. 31-34.
Рожков И.В., Энглин Б.А., Чуршуков Е.С. Противоизносные свойства реактивных топлив // Химия и технология топлив и масел. 1971. № 5. С. 55-59.
Чертков Я.Б., Серегин Е.И., Карсанов Т.И. [и др.] Зависимость эксплуатационных свойств реактивных топлив от группового состава сернистых соединений, содержащихся в них // Химия и технология топлив и масел. 1976. № 1. С. 49-52.
Аксенов А.Ф., Чернова К.С., Спиркин В.Г. [и др.] Влияние химического состава реактивных топлив на их противоизносные свойства // Химия и технология топлив и масел. 1972. № 2. С. 41-44.
Бесполов И.Е., Коробов Б.Ф., Хайкин М.Д. [и др.] Пути улучшения противоизнос-ных свойств топлив для реактивных двигателей // Химия и технология топлив и масел. 1971. № 10. С. 56-58.
Аксенов А.Ф. Трение и изнашивание металлов в углеводородных жидкостях. М. : Машиностроение, 1977. 152 с.
Энглин Б.А., Коробов Б.Ф., Сашевский В.В. [и др.] Зависимость противоизносных свойств ракетных топлив от содержания в них неуглеводородных соединений // Химия и технология топлив и масел. 1971. № 4. С. 43-46.
Гуреев А.А., Азев В.С., Камфер Г.М. Топливо для дизелей. Свойства и применение. М. : Химия, 1993. 336 с.
Гуреев А.А., Фукс И.Г., Лашхи В.Л. Химмотология : учебник. М. : Химия, 1986. 366 с.
Гуреев А.А., Александрова Л.А., Фатьянов А.Д. [и др.] Влияние смолистых веществ на защитные свойства дизельных топлив // Химия и технология топлив и масел. 1975. № 12. С. 38-41.
Баулин О.А. Смазывающая способность малосернистых дизельных топлив и методы ее повышения : автореф. дис.. канд. техн. наук. Уфа, 2006. 24 с.
Azev V.S., Sereda A.V. Influence of sulfur compounds on antiwear properties of diesel fuel // Chemistry and Technology of fuels and oils. 2009. Vol. 45, № 3. Р. 170-176.
Середа А.В., Наумкин А.В., Волков И.О., Азев В.С., Бакунин В.Н. Исследование влияния сернистых соединений на противоизносные свойства дизельных топлив с помощью рентгеновской фотоэлектронной спектроскопии // Нефтехимия. 2007. Т. 47, № 6. С. 457-461.
Моисеев А.В., Куликова С.Г., Петров В.В. Анализ сероорганической части дизельных топлив с помощью газовой хроматографии и хроматомасс-спектрометрии // Нефтепереработка и нефтехимия. 2014. № 4. С. 37-41.
Lin B.-H., Shen B.-X., Zhao J.-G. A study on the prediction model for the lubricity of hydrogenated ultra-low sulfur diesel fuel // Energy Sources. Part A: Recovery, Utilization, and Environmental Effects. 2011. Vol. 33. Р. 254-264.
Al-Zahrani I., Basheer C., Htun T. Application of liquid-phase microextraction for the determination of sulfur compounds in cruide oil and diesel // Journal of Chroma-togrphy A. 2014. Vol. 1330. Р. 97-102.
Matzke M., Litzow U., Jess A., Caprotti R. [et al.] Diesel Lubricity Requirements of Future Fuel Injection Equipment // SAE Int. J. Fuels Lubr. 2009. № 2 (1). Р. 273-286.
Lin B.-H., Shen B.-X., Zhao J.-G. A Study on the Prediction Model for the Lubricity of Hydrogenated Ultra-low Sulfur Diesel Fuel // Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 2010. Vol. 33, is. 3. Р. 254-264.
