Investigation of the qualities of some promising oils of the Absheron oil and gas region

2021 ◽  
Vol 02 ◽  
pp. 22-26
Author(s):  
Yu.A. Abdulayeva ◽  
◽  
N.H. Alekperova ◽  
S.B. Logmanova ◽  
N.F. Kafarova ◽  
...  
Keyword(s):  
Sulfur Content ◽  
Oil And Gas ◽  
Viscosity Index ◽  
Hydrocarbon Composition ◽  
High Viscosity ◽  
Group I ◽  
Oil Fractions ◽  
Low Sulfur Content ◽  
Selective Refining ◽  
Low Sulfur

The article presents the characteristics of characteristic oils of the Apsheron oil and gas region, as well as the hydrocarbon composition of light and oil fractions. Oils of the Apsheron oil and gas region in terms of light fractions, sulfur content, and density are comparable to marketing grades of oils. The standards for prices are: graded crude oil WTI, Light Sweet, Brent, and Russian oils Sokol, Urals, Siberian Light are approaching them. We have studied in detail the yields and hydrocarbon composition of light and oil fractions of oils from the Apsheron oil and gas region. To obtain oils with a high viscosity index, studies were carried out to change the structure of oil fractions using hydrogen using the example of oil fractions of Azeri oil. Due to the significant content of aromatic hydrocarbons, schemes for the processing of oil fractions have been developed, including selective purification of distillates, dewaxing (except for Guneshli oil), as well as hydrocatalytic treatment in a severe mode in the presence of industrial Russian catalysts. As a result, it was possible to obtain API group I oils, according to the viscosity classification corresponding to SAE 20 and SAE 30. Thus, a study of the qualities and hydrocarbon composition of oils from the Absheron oil and gas region showed that these oils are characterized by a high content of light fractions, low density, and low sulfur content. According to these indicators, these oils correspond to the marker oils. In order to obtain base oils with a viscosity index of ≥90 and an aromatic hydrocarbon content of ≥10, a traditional refining method was used: selective refining, dewaxing, and severe hydrotreating.

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.

Evaluation of the thermal properties of diesel oil with low sulfur content

2017 ◽  
Vol 131 (1) ◽  
pp. 697-704 ◽  
Author(s):  
Camila G. D. Peixoto ◽  
Valter J. Fernandes ◽  
Ana C. F. Coriolano ◽  
Renkel R. Araujo ◽  
Glauber J. T. Fernandes ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Sulfur Content ◽  
Diesel Oil ◽  
Low Sulfur Content ◽  
Low Sulfur

The Torsional Properties of Normal and Sulfur-Enriched Wool Fibers

1969 ◽  
Vol 39 (3) ◽  
pp. 261-266 ◽  
Author(s):  
L. D. Armstrong ◽  
M. Feughelman
Keyword(s):  
Mechanical Properties ◽  
Sulfur Content ◽  
Distilled Water ◽  
Constant Degree ◽  
Wool Fibers ◽  
The Difference ◽  
Decreasing Ph ◽  
Low Sulfur Content ◽  
Low Sulfur ◽  
Torsional Properties

The mechanical properties in torsion of single wool fibers of biologically produced high- and low-sulfur content have been studied to determine the effects on torsional behavior. The modulus of rigidity and the torsional relaxation, i.e., the decay in torque with time at a constant degree of twist, were determined in fibers tested in glycerol (~0% RH), distilled water, and aqueous solutions of HCl at pH 0.8, 1.8, and 2.9. The sulfur content had no significant effect on the modulus of ridigidy or on the magnitude of the torsional relaxation of dry fibers. Again, for fibers tested in distilled water, no significant effect of sulfur content on the modulus of rigidity was observed, but the percent decay in torque was measurably affected. The decay in torque in 1 hr for fibers of normal wool amounted to 23% of the initial torque and that for fibers of sulfur-enriched wool amounted to 15%. This difference in torsional relaxation behavior of wet fibers of the two wools was not thought to be due to the difference in sulfur content but may partly be linked with the aspartic acid content of the two wools. The modulus of rigidity and the torsional relaxation of fibers in aqueous HCl decreased with decreasing pH to as little as one third of the values obtained in distilled water, presumably due to the breaking of salt links, the decrease being greater for the sulfur-enriched wools.

scholarly journals A global response to sulfur starvation inPseudomonas putidaand its relationship to the expression of low-sulfur-content proteins

2007 ◽  
Vol 267 (2) ◽  
pp. 184-193 ◽  
Author(s):  
Colin Scott ◽  
Margaret E. Hilton ◽  
Christopher W. Coppin ◽  
Robyn J. Russell ◽  
John G. Oakeshott ◽  
...  
Keyword(s):  
Sulfur Content ◽  
Global Response ◽  
Sulfur Starvation ◽  
Low Sulfur Content ◽  
Low Sulfur

scholarly journals Investigation of Electrohydraulic Effect on Physicochemical Characteristics of High-Resinous Oil “Karazhanbas”

2020 ◽  
Vol 22 (4) ◽  
pp. 315
Author(s):  
R.Kh. Salakhov ◽  
M. Seitzhanova ◽  
D.U. Bodykov ◽  
L.R. Sassykova ◽  
N.K. Zhakirova ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Hydrocarbon Composition ◽  
13C Nmr Spectroscopy ◽  
Physicochemical Characteristics ◽  
High Viscosity ◽  
Fragment Composition ◽  
Oil Hydrocarbons ◽  
Oil Fractions ◽  
Before And After ◽  
High Viscosity Oil

In order to change the viscosity of high-resinous oil of the “Karazhanbas” field (Kazakhstan), the effect of electrohydraulic action on it was studied. The effect of adding an organic solvent xylene on the rheological properties of oil is investigated. A comparative study of the hydrocarbon composition of oil before and after electrohydraulic impact was carried out by the method of gas chromatographymass spectrometry. Fragment composition of oil hydrocarbons before and after electrohydraulic treatment was determined by 1H and 13C NMR spectroscopy. It is shown that the conversion of heavy oil fractions to light ones begins with a five-time electrohydraulic impact. It is determined that 20‒25 electric discharge pulses are sufficient for the quantitative process of splitting hydrocarbons. It was found that the addition of xylene to high-viscosity oil leads to an increase in the conversion of hydrocarbons under electrohydraulic action. The content of paraffins and naphthalenes in high-viscosity oil is slightly reduced during electrohydraulic processing. In oil, after electrohydraulic action, a decrease in the proportion of protons of long alkyl terminal СН3-groups of hydrocarbons is observed, which indicates the process of decomposition of heavy oil fractions into light fractions.

scholarly journals Effective extraction of high purity sulfur from industrial residue with low sulfur content

2020 ◽  
Vol 9 (4) ◽  
pp. 8117-8124
Author(s):  
S. Suárez-Gómez ◽  
L. Bonavera ◽  
J. Carballido-Landeira ◽  
P. Blanco ◽  
F. Blanco ◽  
...  
Keyword(s):  
Sulfur Content ◽  
High Purity ◽  
Industrial Residue ◽  
Low Sulfur Content ◽  
Low Sulfur

POLLUTION OF THE ATMOSPHERE OF PRIANGARIA BY EMISSIONS OF CHPP-11 (USOLYE-SIBERIAN CITY)

2018 ◽  
Vol 1 (12) ◽  
pp. 222-227
Author(s):  
Veronika Makarova ◽  
Kseniya Dudareva ◽  
Natal'ya Malyshkina
Keyword(s):  
Environmental Pollution ◽  
Sulfur Content ◽  
Calorific Value ◽  
Ash Content ◽  
Low Sulfur Content ◽  
Low Sulfur ◽  
The Town

. The article deals with the problem of environmental pollution in the town of Usolye-Sibirskaya CHPP-11, which operates on the Zabituiskoye coal coals, which have an increased sulfur content (4,1%) and ash (23,0%). It is proposed to replace coal from the Zabituiskoye field with coal of the BZR grade of the Tulun section with reduced ash content, low sulfur content and good calorific value.

Advances in Carbon-Based Nanocomposites for Deep Adsorptive Desulfurization

2020 ◽  
pp. 63-91
Author(s):  
Saddam A. AL Hammadi
Keyword(s):  
Sulfur Content ◽  
Carbon Nanomaterials ◽  
Operating Cost ◽  
Adsorptive Desulfurization ◽  
Transportation Fuels ◽  
Light Cycle Oil ◽  
Ultra Low Sulfur Diesel ◽  
Cycle Oil ◽  
Low Sulfur Content ◽  
Low Sulfur

The ultra-low sulfur diesel (ULSD) is required to comply with stricter government policy on low sulfur content of transportation fuels. Better knowledge of the different factors that concern deep desulfurization of fuels is necessary to achieve ultra-low sulfur content and cheaper way of producing ULSD. Both the capital and operating cost of the adsorptive desulfurization process is cheaper compare to the conventional hydroprocessing. In the future, the need to produce more volume of fuels with very low sulphur content from low-grade feedstocks like heavy oil and light cycle oil in order to meet up with the global demand for sulphur-free fuels is pertinent. Several on-going researches are pointing to the use of adsorbents for removal of sulfur compounds from hydrocarbon refining stream. In this chapter, varieties of carbon nanomaterials suitable for adsorptive desulfurization are discussed. If the active lifetime, where the capacity of the adsorbents are adequate, the approach is practically feasible for commercial application.

Hydrocarbon composition of high-viscosity-index (95?100) motor oils

1972 ◽  
Vol 8 (7) ◽  
pp. 494-498
Author(s):  
I. A. Mikhailov ◽  
A. A. Polyakova ◽  
N. P. Izotova ◽  
E. S. Brodskii ◽  
M. M. Chernysheva ◽  
...  
Keyword(s):  
Viscosity Index ◽  
Hydrocarbon Composition ◽  
High Viscosity ◽  
Motor Oils
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