Abstract.1 Physico-chemical properties and group composition of the virgin and used M-10DM motor oil for diesel engines were studied. IR-spectroscopy and derivatography were used for investigation. By means of X-ray fluorescence the composition of inorganic part was determined. Change in properties and composition of M-10DM before and after using are discussed.
The physico-chemical properties and group composition of the used mineral motor oils M-10DM and NORMAL 15W40, as well as the fractions obtained as a result of their thermooxidative regeneration have been studied. The results of IR-spectroscopic and X-ray fluorescence analysis of used oils and fractions obtained during thermooxidative regeneration are presented. The changes in the composition and properties of regenerated oils are described.
The tar oxidation process has been studied at 523 K, air flow rate of 2.0; 2.5 and 5.0 h-1 and process time of 6, 9 and 12 h in the presence of 2.5; 5.0 and 7.5 mas % (to calculate for the raw material)of petroleum resin with fluorine atoms. The tar is the residue of black oil vacuum distillation obtained from the oils of Western-Ukrainian fields. The effect of process conditions on the characteristics of obtained bitumen has been determined. The structural-group composition of blown bitumen has been examined.
1 The physico-chemical properties and the group composition of the used mineral motor oils M-10DM and NORMAL 15W40, as well as the fractions obtained as a result of their vacuum distillation, have been studied. The results of IR spectroscopy and XRF analysis are presented. The change in the composition and properties of the fractions distilled from used oils under vacuum has been described.
ЗАСТОСУВАННЯ ВАКУУМНОГО РОЗДІЛЕННЯ В ТЕХНОЛОГІЇ РЕГЕНЕРАЦІЇ ВІДПРАЦЬОВАНИХ МІНЕРАЛЬНИХ ОЛИВАнотація. Вивчено фізико-хімічні властивості та груповий склад відпрацьованих мінеральних моторних олив М-10ДМ та NORMAL 15W40, а також фракцій, одержаних в результаті їх вакуумного розділення. Наведено результати ІЧ-спектроскопічного та рентгенофлуоресцентного аналізу відпрацьованих олив та виділених фракцій. Описано зміну складу й властивостей фракцій виділених з відпрацьованих олив внаслідок їх вакуумного розділення.Ключові слова: вакуумне розділення, відпрацьована олива, ІЧ-спектроскопія, регенерація олив.
Experimental results concerning main regularities of paraffin tar and petroleum resins joint oxidation are presented. It has been shown that petroleum resin in the amount of 5 mas % as raw material component allows to intensify oxidation and improve operational characteristics of obtained bitumen.
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