Calculation of molar average boiling point of petroleum products

1975 ◽  
Vol 11 (8) ◽  
pp. 639-641 ◽  
Author(s):  
V. I. Kurganov ◽  
Z. U. Novikova ◽  
G. Ya. Starodubskaya
Keyword(s):  
Boiling Point ◽  
Petroleum Products ◽  
Average Boiling Point

Measurement of Total Acid Number (TAN) and TAN Boiling Point Distribution in Petroleum Products by Electrospray Ionization Mass Spectrometry

2008 ◽  
Vol 80 (3) ◽  
pp. 849-855 ◽  
Author(s):  
Kuangnan Qian ◽  
Kathleen E. Edwards ◽  
Gary J. Dechert ◽  
Stephen B. Jaffe ◽  
Larry A. Green ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Electrospray Ionization Mass Spectrometry ◽  
Boiling Point ◽  
Petroleum Products ◽  
Acid Number ◽  
Ionization Mass ◽  
Total Acid ◽  
Point Distribution ◽  
Total Acid Number

scholarly journals Thiophene Determination in Liquid Hydrocarbons by In-line Acoustic Measurements

2019 ◽  
Vol 22 (4) ◽  
pp. 82-88
Author(s):  
Nikolay V. Mukhin ◽  
Mykhailo M. Kutia
Keyword(s):  
Boiling Point ◽  
Flow Analysis ◽  
Acoustic Resonance ◽  
Petroleum Products ◽  
Acoustic Properties ◽  
Liquid Hydrocarbons ◽  
Acoustic Measurements ◽  
Oil Fraction ◽  
Sensor Structure

Introduction. Petroleum is a complex mixture of hydrocarbons. Sulphur is the most common heteroatom in pe-troleum and petroleum products. Its content in oil can reach 14 %. The determination of sulphur in oil and its removal is of great importance, since sulphur compounds adversely affect the quality of petroleum products and pollute the environment. Desulphurization of hydrocarbons is important in the processing of petroleum products, which needs in usage of accurate and simple methods for the sulphur-containing components determination. Most of developed methods are difficult to apply for flow online analysis, which can create difficulties in using them to monitor the content of sulphur-containing heteroatomic components in real time. Acoustic sensors are one of the possible solutions. In term of sensing of flammable liquids, the use of the acoustic methods is attractive since the analyte is not a part of an electrical measuring circuit and it is only acoustically coupled that prevents an occurrence of a spark.Objective. The purpose of the work is to study the possibilities of online flow analysis of sulphur-containing heteroatomic components using acoustic measurements. The challenge is the development of a resonator system integrated with the pipe.Materials and methods. Thiophene and oil fraction with the boundary boiling point of 100–140 oC were used to prepare the mixtures. Thiophene is a representative of sulphur-containing components, which may be included in the composition of petroleum and its derivatives. Experimental measuring equipment includes impedance analyzer, a developed sensor structure integrated with a liquid-filled pipe, a pump and a tank with a measured liquid. A theoretical analysis of sensor structure was carried out on the basis of numerical simulation using COMSOL Multiphysics software.Results. The sensor structure was designed as a combination of 2D and 1D pipe periodic arrangements to achieve high Q-factor of acoustic resonance in the flow system. The eigenmodes of the sensor structure with a liquid analyte were carried out. The characteristic of sensor structure is determined. The sensor shows good sensitivity to the thiophene content with high resolution in-line analysis. This result is achieved by limiting the energy losses of acoustic resonance in radiation along the pipe by creating a periodic structure.Conclusion. The study of acoustic properties of solutions prepared on the basis of thiophene and oil fraction with boundary boiling point 100–140 °C was performed. It shows that methods based on acoustic spectroscopy make it possible to accurately determine the concentration of heteroatomic components in gasoline mixtures, since the presence of heteroatomic components leads to a change in mechanical properties of liquid hydrocarbons mixtures. Possible applications for developed acoustic sensor are flow analysis for monitoring the quality of oil products. 

scholarly journals Comparison of Empirical Models to Predict Viscosity of Secondary Vacuum Gas Oils

Resources ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 82
Author(s):  
Dicho S. Stratiev ◽  
Svetoslav Nenov ◽  
Ivelina K. Shishkova ◽  
Rosen K. Dinkov ◽  
Kamen Zlatanov ◽  
...  
Keyword(s):  
Specific Gravity ◽  
Boiling Point ◽  
Empirical Models ◽  
Gas Oil ◽  
Characteristic Parameters ◽  
Prediction Ability ◽  
Aromatic Content ◽  
Average Boiling Point ◽  
Viscosity Prediction ◽  
Oil Gas

This work presents characterization data and viscosity of 34 secondary vacuum gas oils (H-Oil gas oils, visbreaker gas oils, and fluid catalytic cracking slurry oils) with aromatic content reaching up to 100 wt.%. Inter-criteria analysis was employed to define the secondary VGO characteristic parameters which have an effect on viscosity. Seven published empirical models to predict viscosity of the secondary vacuum gas oils were examined for their prediction ability. The empirical model of Aboul-Seud and Moharam was found to have the lowest error of prediction. A modification of Aboul-Seoud and Moharam model by separating the power terms accounting for the effects of specific gravity and average boiling point improves the accuracy of viscosity prediction. It was discovered that the relation of slope of viscosity decrease with temperature enhancement for the secondary vacuum gas oil is not a constant. This slope increases with the average boiling point and the specific gravity augmentation, a fact that has not been discussed before.

scholarly journals Hydrodynamic activation of heavy oil residues

2021 ◽  
Vol 16 (5) ◽  
pp. 390-398
Author(s):  
V. B. Terenteva ◽  
B. V. Peshnev ◽  
A. I. Nikolaev
Keyword(s):  
Refractive Index ◽  
Pressure Gradient ◽  
Boiling Point ◽  
Mechanochemical Activation ◽  
Petroleum Products ◽  
Hydrodynamic Cavitation ◽  
Oil Refining ◽  
Gas Oil ◽  
Boiling Points ◽  
Cavitation Effect

Objectives. Recently, there has been a tendency to increase the volume of high-viscosity heavy oils in the total volume of oil produced. The processing of these oils requires new technological approaches. This task is closely related to the need to increase the depth of oil refining. Among the approaches proposed to solve these problems, mechanochemical activation, which is based on the cavitation effect produced by ultrasonic or hydrodynamic methods, has been suggested. This study evaluated the effects of cavitation in increasing the depth of oil refining.Methods. Straight-run and “secondary” oil products were used as raw materials: vacuum gas oil, catalytic cracking gas oil, and fuel oil. Activation was carried out in a high-pressure disintegrator. The principle of operation was to compress the oil product and then pass it through a diffuser. When the oil was passed through the diffuser, there was a sharp pressure release to atmospheric pressure, which caused cavitation in the hydrodynamic flow. The pressure gradient on the diffuser and the number of processing cycles ranged from 20 to 50 MPa and 1 to 10, respectively. The density, refractive index, and the fractional composition of petroleum products were determined using standard and generally accepted methods.Results. This paper reports the influence of mechanochemical activation of petroleum products on their physical and chemical characteristics. An increase in the pressure gradient and the number of processing cycles leads to a decrease in the boiling point of the petroleum products and their density and an increase in the yield of fractions that boil off below 400 °C. The yield of the fractions with boiling points of 400–480 °C and the remainder were reduced. The density and refractive index of fractions with boiling points up to 480 °C decreased, and the density of the residue increased. The effects of cavitation (an increase in the yield of fractions with boiling points up to 400 °C and a decrease in the density of the petroleum products) increased with increasing pressure gradient and the number of processing cycles.Conclusions. The changes in the density, boiling point, and the yield of fractions increased with increasing the pressure from 20 to 50 MPa and the number of hydrodynamic cavitation cycles from 1 to 5. Increasing the number of processing cycles to more than five had little additional effect. The effects of cavitation increased with increasing initial density of the oil product. The average molecular weight of these fractions was estimated from the densities and boiling points of individual fractions of the petroleum products. The calculation confirmed the assumption regarding the course of cracking reactions of petroleum products under the influence of cavitation and indicates the course of the compaction processes.

Relation between Boiling Point and Some Other Properties of Petroleum Products.

1925 ◽  
Vol 17 (12) ◽  
pp. 1250-1252 ◽  
Author(s):  
J. B. Hill ◽  
S. W. Ferris
Keyword(s):  
Boiling Point ◽  
Petroleum Products

Determination of the initial boiling point and end point of petroleum products in minidistillation

2008 ◽  
Vol 44 (1) ◽  
pp. 55-60 ◽  
Author(s):  
G. N. Abaev ◽  
A. V. Dubrovskii ◽  
R. G. Abaev
Keyword(s):  
Boiling Point ◽  
Petroleum Products ◽  
Initial Boiling Point ◽  
End Point

Importance of Petroleum Products

1918 ◽  
Vol 86 (2221supp) ◽  
pp. 59-59
Keyword(s):  
Petroleum Products
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