Влияние сернистых соединений на смазывающую способность дизельных топлив
| Parent link: | Вестник Томского государственного университета. Химия/ Национальный исследовательский Томский государственный университет (ТГУ).— , 2015- № 2.— 2015.— [С. 45-58] |
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| Summary: | Заглавие с экрана Приведен обзор результатов изучения влияния сераорганических соединений дизельных топлив на их смазывающую способность. Многими исследователями установлена положительная связь между содержанием общей серы и проти-воизносными свойствами топлив. Для меркаптанов, органических сульфидов и дисульфидов установлено отрицательное влияние на смазывающую способность дизельных топлив. Малоизученным остается влияние бензотиофена, ди-бензотиофена и их метильных производных. 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. Режим доступа: по договору с организацией-держателем ресурса |
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2015
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| Online Access: | http://journals.tsu.ru/chemistry/&journal_page=archive&id=1369&article_id=25841 http://elibrary.ru/item.asp?id=25378278 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=646403 |