Spectroscopic studies of oil products west-absheron oil fractions.

2021 ◽  
Vol 02 ◽  
pp. 38-42
Author(s):  
V.M. Abbasv ◽  
◽  
M.A. Najafova ◽  
Yu.A. Abdullayeva ◽  
S.F. Akhmedbekova ◽  
...  
Keyword(s):  
Pour Point ◽  
Esr Spectroscopy ◽  
Viscosity Index ◽  
Petroleum Products ◽  
Spectroscopic Studies ◽  
Engine Oil ◽  
Motor Oil ◽  
Oil Viscosity ◽  
Adsorption Method ◽  
Oil Fractions

The composition and paramagnetism of oil fractions (300-350oC), (350-400oC), (400-450oC), and (450-500oC) of West-Absheron oil were studied using IR, ESR spectroscopy and luminescence methods. In all these refineries, asphaltene radicals with a concentration of 1018spin/g are registered, which screen all paramagnetic particles present in the oil system. With the exception of the fraction (300-350oC), in which much lower than in the listed fractions, it was possible to register the spectra of metal oxides (DHwidth=117mtl, g=2.7), the spectra from aromatic hydrocarbon radicals (DНwidth=10mtl, g=2.4), which was also registered in the fr.(140-3200C) of the oil itself. The presence of these petroleum products greatly reduces the oil viscosity index. As a result of the cleaning of the latter with an ionic liquid and an adsorption method in the studied oil fractions were found in trace amounts. The increase in the viscosity index of the oil fr. (350-500oC) was increased only after the addition of a foreign Lubrizol additive concentrate. Thus, the SAE15W40 engine oil with a viscosity index of 101.2 and a low pour point (-30oC) was obtained, which is recommended as a motor oil for diesel engines.

scholarly journals Improvement Viscosity Index of Lubricating Engine Oil Using Low Molecular Weight Compounds

2019 ◽  
Vol 7 (1) ◽  
pp. 14-17 ◽  
Author(s):  
Shenwar A. Idrees ◽  
Lawand L. Mustafa ◽  
Sabah S. Saleem
Keyword(s):  
Polar Solvent ◽  
Viscosity Index ◽  
Temperature Stability ◽  
Polar Molecule ◽  
Engine Oil ◽  
Lubricating Oil ◽  
Oil Viscosity ◽  
Different Temperatures ◽  
London Dispersion ◽  
Molecular Forces

the effect of polarity of solvent on the viscosity and viscosity index of lubricating engine oil has been studied using ethanol as an example of polar solvent and toluene as an example of non-polar solvent at different solvent ratios and ambient temperature and additionally other experiments have been done at five different temperatures including 100 oC. So that, the activation energy of viscous flow (Ea) was calculated, and for this purpose Arrhenius viscosity-temperature dependence has been applied and the results were 42.128, 29.256 and 35.417KJ/mole for lubricating engine oil mixed with ethanol, toluene and no additives in turn. It additionally shows that adding polar solvent to lubrication engine oil viscosity increases this may be due to the fact of strong inter molecular forces that found in polar molecules such as hydrogen bonding in ethanol makes the solution forces stronger as a result higher viscosity. However, adding non-polar solvent decreases viscosity because of small size of toluene and both paraffinic lubricating oil and toluene have same London dispersion inter molecular forces. Last not least, the result shows that engine oil mixed with non-polar molecule gives more temperature stability than that of polar molecule giving viscosity index (VI) 366 and 580 respectively.

scholarly journals CHARACTERIZATION OF CuO-NANOADDITIVE BLENDED ENGINE OIL

2017 ◽  
Vol 22 (1) ◽  
pp. 152-158
Author(s):  
Bishow Raj Subedi ◽  
Hira Mani Trital ◽  
Armila Rajbhandari
Keyword(s):  
Pour Point ◽  
Crystal Size ◽  
Viscosity Index ◽  
Engine Oil ◽  
X Ray Diffraction ◽  
Chemical Parameters ◽  
Copper Strip ◽  
Point Depressant ◽  
Crystalline Nature

Copper oxide (CuO) nanoadditives were successfully synthesized in laboratory by precipitation technique. X-ray diffraction spectroscopy (XRD) showed the crystalline nature of CuO with the average crystal size of 10 nm. The prepared CuO has been blended with engine oil. Thus prepared modified engine oil showed good kinematic viscosity 158 cSt and 19.06 cSt at 40⁰C and 100⁰C respectively. The viscosity index was also found to be improved to 122. Similarly, the pour point was also found to be considerably decreased to -27⁰C which is due to presence of CuO that acts as good pour point depressant. The flash point of modified engine oil reached to 225⁰C. In addition, modified engine oil was found to be reluctant towards water and it does not contain noticeable amount of water and found to be noncorrosive in nature having copper strip corrosion rating 1b according to ASTM D-130 method. Results revealed that the physio-chemical parameters of engine oil could be improved by the addition of CuO nanoadditive.Journal of Institute of Science and TechnologyVolume 22, Issue 1, July 2017, page: 152-158

The study of the qualities of light and oil fractions of Azeri oil

2021 ◽  
Vol 02 ◽  
pp. 28-31
Author(s):  
G.S. Mukhtrova ◽  
◽  
Yu.A. Abdullayeva ◽  
R.Z. Hasanova ◽  
S.B. Logmanova ◽  
...  
Keyword(s):  
Sulfur Content ◽  
Pour Point ◽  
Viscosity Index ◽  
Antioxidant Properties ◽  
Hydrocarbon Composition ◽  
Base Oil ◽  
Base Oils ◽  
Oil Fraction ◽  
Oil Fractions ◽  
Light Oil

The article provides research on the qualities of Azeri oil and its light and oil fractions. A characteristic feature of Azeri oil is its high content of light fractions. This oil is light, low-sulfur, and paraffinic. Azeri oil in terms of density, sulfur content, content of light (light) fractions corresponds to marketing grades of oils and is called Azeri Light. Along with light fractions, Azeri Light oil contains up to 30-32% of oil fractions boiling above 350°C. Studies of 50°C oil fractions 350-500°C showed that the viscosity of the fractions at 100°C is in the range of 2.5-10.2 mm2/s, the viscosity index is 72-79.3, and the pour point is 12-36°С, potential content of base oils - 25.73%, their hydrocarbon composition, %: n-paraffinic oils - 50.7; isoparaffinic + naphthenic - 10.67; aromatic - 8.94%. Using traditional methods of purification using a selective solvent, followed by dewaxing and hydrotreating, from 50°C oil fractions of Azeri oil, base oils with a viscosity of 4.2-9.0 mm2/s at 100°C and a viscosity index of 91.0 can be obtained - 95.8, pour point minus 15°С / minus 20°С. By cleaning a wide oil fraction of 350-500°C, it is possible to obtain a base oil with a viscosity at 100 C of 6.5 mm2/s (SAE 20), a viscosity index of 95, a pour point of minus 15°C, an oil yield (350-500°C) is 20.3% for distillate (12.4% for oil). In terms of saturated hydrocarbons content (≥90%, sulfur content less than 0.03%), viscosity index > 90, the oil has good antioxidant properties and can be assigned to API group II.

Jojoba modified polymers as performance modifiers additives for engine oil

2015 ◽  
Vol 67 (5) ◽  
pp. 425-433 ◽  
Author(s):  
Nehal S. Ahmed ◽  
Amal M. Nassar ◽  
Rabab M. Nasser
Keyword(s):  
Vinyl Acetate ◽  
Pour Point ◽  
Viscosity Index ◽  
Vinyl Pyrrolidone ◽  
Proton Nuclear Magnetic Resonance ◽  
Engine Oil ◽  
Lubricating Oil ◽  
Content Type ◽  
Pour Point Depressants ◽  
Viscosity Index Improvers

Purpose – The purpose of this paper is to prepare novel types of copolymers and terpolymers depending on jojoba, and using them as additives for lubricating oil. Design/methodology/approach – Copolymerization of 1 mole of jojoba with 2 moles of vinyl acetate and copolymerization of 1 mole of jojoba with 2 moles of vinyl pyrrolidone were carried out. Then, two series of terpolymers were prepared by reacting (jojoba: vinyl acetate: alkylacrylate) and (jojoba: vinyl pyrrolidone: alkylacrylate), using free radical chain addition polymerization. Elucidation of the prepared polymers was carried out by using Fourier transform infrared spectroscopy, proton nuclear magnetic resonance and gel permeation chromatography, for determination of weight average molecular weight. The thermal stability of the prepared polymers was determined. The prepared polymers were evaluated as viscosity index improvers and pour point depressants for lubricating oil. Findings – It was found that the viscosity index increases with increasing the alkyl chain length of alkylacrylate. The effect of the monomer type was studied, and it was found that the polymers depending on vinyl acetate have great effect as viscosity index improvers and pour point depressants for lubricating oil. Originality/value – The polymerization of jojoba as different copolymers and terpolymers was carried out. The great influence of the prepared additives on modification of the viscosity properties and pour point of the oil was observed.

scholarly journals Research into the Effects of the Effective Microorganisms Addition on the Engine Oil Viscosity

2019 ◽  
Vol 26 (3) ◽  
pp. 105-112
Author(s):  
Rafał Krakowski
Keyword(s):  
Main Part ◽  
Oxidation Process ◽  
Combustion Engine ◽  
Petroleum Products ◽  
Engine Oil ◽  
Oil Viscosity ◽  
Liquid Form ◽  
Effective Microorganisms ◽  
Measuring Device ◽  
Used Oil

Abstract In the article, changes in the properties of oils during operation were characterized. The main reason for this is the continuous aging process of the used oil caused by the interaction of oxygen contained in the air, which reacts relatively easily with hydrocarbons and the oxidation process is accelerated just by high temperature. Then the problem of microorganisms occurring in petroleum products and their effect on the properties of oils and the operation of the internal combustion engine was presented. The next part of the article presents effective microorganisms, i.e. what they are and how they work, in particular, their composition and appropriate development conditions. In addition, some of their specific applications were briefly described. In the next part of the article, the research methodology, applied oil samples with additives of effective microorganisms, both for fresh oil and used oil were described. In addition, the measuring test stand with instrumentation and measuring device was shown. The main part of the article contains the characteristics of dynamic viscosity as a function of temperature for fresh oil and used oil compared with oils with the addition of microorganisms in liquid form and ceramic tubes. The developed graphs enabled analysis of the effect of the addition of microorganisms on oil viscosity as ecological products.

scholarly journals Comparison of the Recycling Efficiency of Metakaolin and Laboratory-Synthesized Zeolite Types LTA and LSX on Used Lubricant Engine Oil

2018 ◽  
Vol 10 (4) ◽  
pp. 11
Author(s):  
Bright Kwakye-Awuah ◽  
Ralph Kwakye ◽  
Baah Sefa-Ntiri ◽  
Isaac Nkrumah ◽  
Elizabeth Von-Kiti ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Pour Point ◽  
Viscosity Index ◽  
Carbon Residue ◽  
Engine Oil ◽  
Zeolite A ◽  
X Ray Diffraction ◽  
X Ray ◽  
Engine Oils ◽  
Lubricant Oil

Zeolite types LTZ and LSX were synthesized from bauxite and kaolin in Ghana and characterized by x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy and Fouries transformed infrared spectroscopy. The zeolites were then applied to used lubricant oil and parameters lubricant engine oil were measured and compared to those of fresh ones. Parameters such as flashpoint, viscosity index, pour point, sulfur content, heavy metals, specific gravity, refractive index and carbon residue were analyzed. The results obtained showed that zeolite types A and X successfully removed heavy metals, particularly lead, copper and iron that were in the spent oil. A removal efficiency of 23.40 % Fe, 96.76 % Zn, 19.05 % Cu and 12 % Cr were obtained for Zeolite A with a yield of 62 % whilst 32.81 % Fe, 39.00 %, Zn, 47.61 %, Cu and 24 % Cr were obtained for zeolite LSX with a yield of 67 %. The viscosity index of the virgin, zeolite LTA treated and zeolite LSX treated oils were 115, 121 and 115 respectively. These results showed that used engine oils recovered using glacial acetic acid and zeolites A and LSX can be reused.

An experimental and theoretical investigation on the effects of piston clearance and oil viscosity on Cranktrain friction

2021 ◽  
pp. 095440892110362
Author(s):  
Mojtaba Mehrabi Vaghar ◽  
Ashkan Moosavian ◽  
Mohammad Ali Ehteram
Keyword(s):  
Engine Speed ◽  
Viscosity Index ◽  
Experimental Results ◽  
Engine Oil ◽  
Oil Viscosity ◽  
Piston Rings ◽  
Ic Engine ◽  
Piston Skirt ◽  
High Speeds ◽  
Two Parameters

In this paper, the effects of clearance between piston and cylinder and oil viscosity index on the friction of area between the piston and cylinder of an internal combustion (IC) engine were investigated experimentally and theoretically. To this end, two values of 33 and 66 µm for the piston clearance, and two types of engine oil namely SAE10W40 and SAE20W50 were considered. To carry out the experiments, the engine was run under motored condition. The experiments were implemented at different oil temperatures and engine speeds. Based on the experimental results, although reduction in the piston clearance and the use of 20W50 oil caused an increase in the friction, but the effects of these two parameters became less with an increase in oil temperature and engine speed. The experimental results showed that the effect of clearance on the friction was more noticeable for low speeds. The maximum influence of the piston clearance decrease on the friction was 16% with the use of 20W50 oil at 1000 r/min when the oil temperature was 35 °C. The minimum influence of the piston clearance on the friction was 0.5% when the oil temperature was 90 °C and the engine speed was set on 6000 r/min. The theoretical results showed that the most contribution of the friction of piston/ring/cylinder assembly belonged to the piston skirt. Moreover, the effect of the piston skirt on the friction at high speeds was more than that of the piston rings. The friction value of the piston rings was not significantly altered by changing the engine speed, but it was considerably changed by the oil temperature variation. Whereas the piston skirt friction had an increasing trend with the speed rise, the change in the engine oil temperature, especially for low temperatures, had no significant effect on the piston skirt friction.

Development of a Proximate IR Spectrometric Method for the Determination of Base Oil Viscosity, Viscosity Index, and Pour Point

2016 ◽  
Vol 52 (1) ◽  
pp. 76-84
Author(s):  
B. P. Tonkonogov ◽  
V. A. Dorogochinskaya ◽  
L. N. Bagdasarov ◽  
E. V. Mozhaiskaya
Keyword(s):  
Pour Point ◽  
Viscosity Index ◽  
Spectrometric Method ◽  
Oil Viscosity ◽  
Base Oil

Development of thickened semi-synthetic engine oil M-5z / 20 AERO for four-stroke gasoline engines aircraft piston of unmanned aerial vehicles (UAVs)

2020 ◽  
Vol 06 ◽  
pp. 44-47
Author(s):  
A.A. Moykin ◽  
◽  
A.S. Medzhibovsky ◽  
S.A. Kriushin ◽  
M.V. Seleznev ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Engine Oil ◽  
Motor Oil ◽  
Gasoline Engines ◽  
State Research Institute ◽  
Technical Requirements ◽  
Aerial Vehicles ◽  
State Research ◽  
Industrial Batch ◽  
The Russian Federation

Nowadays, the creation of remotely-piloted aerial vehicles for various purposes is regarded as one of the most relevant and promising trends of aircraft development. FAU "25 State Research Institute of Chemmotology of the Ministry of Defense of the Russian Federation" have studied the operation features of aircraft piston engines and developed technical requirements for motor oil for piston four-stroke UAV engines, as well as a new engine oil M-5z/20 AERO in cooperation with NPP KVALITET, LLC. Based on the complex of qualification tests, the stated operational properties of the experimental-industrial batch of M-5z/20 AERO oil are generally confirmed.

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