scholarly journals Mathematical modeling of a new method of transportation of viscous petroleum products at low air temperatures

2021 ◽  
Vol 2131 (2) ◽  
pp. 022057
Author(s):  
V I Moiseev ◽  
V A Ksenofontova
Keyword(s):  
Petroleum Product ◽  
Simulation Modelling ◽  
High Viscosity ◽  
Petroleum Products ◽  
Oil Products ◽  
New Method ◽  
The Finite Element Method ◽  
Viscous Oil ◽  
Air Temperatures ◽  
Fuel Oils

Abstract High viscosity petroleum products such as fuel oils and cracking residues are widely used as marine and boiler fuels both in Russia and in its exports. Conveying viscous petroleum products at low air temperatures has a high cost due to the unloading and cleaning processes of the transport tanks. Refined petroleum product cools and solidifies during transportation, becoming highly viscous, making it impossible to drain it without preheating to restore fluidity. Emerging difficulties are common to all countries with long winters and geographically wide areas. To justify a new method of rail transport of viscous petroleum products while maintaining their high temperature and fluidity by suppressing the natural convection of the petroleum product at the stage of filling the tanker. Temperature field calculations using the finite element method and the ANSYS R18.2 package are presented. The business process of the proposed transport method is universal for all modes of transportation. Using Petri nets and simulation modelling, it is investigated using the example of cleaning a tank car boiler from highly viscous residual oil products. You must perform these operations periodically during the operation of the tank wagon, and they are mandatory before every scheduled inspection and repair. Viscous oil products can be transported in a new way, the duration of the cleaning process of the tank wagon boiler is reduced by three times and the amount of water consumed is reduced by one and a half times.

Equipment dentifying Vapor Leakages and Recovery of Petroleum Product Vapor When Stored

2020 ◽  
Vol 05 ◽  
pp. 60-64
Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Environmental Protection ◽  
Petroleum Product ◽  
Petroleum Products ◽  
Oil Products ◽  
Carnot Cycle ◽  
Oil Supply ◽  
Gas Stations ◽  
Environmental Situation ◽  
Vapor Absorption

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.

Application of New Coalescence Method for Treatment of Emulsified Petroleum Products Wastewater

1991 ◽  
Vol 24 (7) ◽  
pp. 261-268 ◽  
Author(s):  
Y. P. Sedlukho
Keyword(s):  
Waste Water ◽  
Experimental Research ◽  
Quartz Sand ◽  
High Efficiency ◽  
Petroleum Products ◽  
Oil Products ◽  
Polytechnic Institute ◽  
New Method ◽  
Technological Parameters ◽  
Oil Emulsions

The problems of applying new method of coalescence of emulsified oil products on the surface of hydrophobic filtering materials during purification of oil-containing waste water are discussed. The results of some theoretical and experimental research are listed. During the research granulated polymers (polyethylene, polypropylene) and hydrophobic quartz sand were used as filtering materials. The research reveals the fundamental processes which are occurring. The main principles of technological computation as well as those of designing installations and separate elements of installations are worked out. The paper shows that it is possible to achieve rather a high efficiency of separating water/oil emulsions if filtering materials and technological parameters are selected properly. The paper is based on the results of recent research carried out under the guidance of the author at the Novopolotsk Polytechnic Institute.

scholarly journals Application of a New Method of Collecting Oil and Petroleum Products to Improve the Quality of Spill Response

2021 ◽  
Vol 320 ◽  
pp. 02007
Author(s):  
Vitaly A. Onov
Keyword(s):  
Environmentally Friendly ◽  
Petroleum Products ◽  
Oil Products ◽  
New Method ◽  
Complete Elimination ◽  
High Quality ◽  
Low Degree ◽  
High Degree ◽  
Oil And Oil Products

The article substantiates a new method of localization and elimination of oil and oil products spills. This method is the most environmentally friendly of all existing ones, fast, high-quality, inexpensive, with a low degree of further spread of the spill and a high degree of complete elimination.

scholarly journals New way to increase the profitability of railway transportation of viscous petroleum products at low air temperatures

2021 ◽  
Vol 1901 (1) ◽  
pp. 012100
Author(s):  
A A Vorobiev ◽  
V I Moiseev ◽  
I K Samarkina ◽  
T A Komarova ◽  
A A Krutko ◽  
...  
Keyword(s):  
Petroleum Products ◽  
Railway Transportation ◽  
Air Temperatures

Prediction indicators of the petroleum products quality using statistical methods

2021 ◽  
Author(s):  
Keyword(s):  
Petroleum Product ◽  
Principal Components ◽  
Autoregressive Model ◽  
Linear Models ◽  
Petroleum Products ◽  
Oil Refinery ◽  
Distributed Lag ◽  
Method Of Principal Components ◽  
Product Method

The possibility of the virtual analyzers models constructing of the petroleum products quality indicators for the atmospheric column of an oil refinery is considered. Comparison of linear models is carried out. It was found that more accurate and less costly are autoregressive models with a distributed lag. The use of such models at the facility improves the efficiency of obtaining information about the quality of petroleum products. Keywords virtual analyzers; autoregressive model; lag; factors; petroleum product; method of principal components; quality

A New Method for Calculating the Inflection Point Temperature of Heavy-Oil Rheology Transforming from Non-Newton Fluid into the Newton Fluid

2021 ◽  
pp. 1-16
Author(s):  
Dong Liu ◽  
Yonghui Liu ◽  
Nanjun Lai ◽  
Youjun Ji ◽  
TingHui Hu
Keyword(s):  
Newtonian Fluid ◽  
Heavy Oil ◽  
Inflection Point ◽  
High Viscosity ◽  
Current Approach ◽  
Temperature Data ◽  
New Method ◽  
Good Correspondence ◽  
Point Temperature ◽  
Shengli Oilfield

Abstract The inflection point temperature of rheology (IPTR) of heavy oil transforming from a non-Newtonian fluid into a Newtonian fluid is a key parameter in the steam huff- and-puff process. It is particularly relevant in terms of optimizing injection parameters, calculating the heating radius, and determining well spaces. However, the current approach exhibits obvious shortcomings, such as the randomness of the selected tangent line and inadaptability for extra-heavy oil with high viscosity. Therefore, this paper presents a novel method for calculating IPTR using viscosity–temperature data. The approach is based on the Arrhenius equation and quantitatively evaluates the IPTR according to the inflection point of the apparent activation energy. The IPTR values of four heavy-oil samples obtained from the Bohai Oilfield in China were quantitatively predicted according to viscosity–temperature data using the proposed method. The method's accuracy was verified by a series of rheological investigations on samples obtained from two heavy-oil wells. Additionally, the new method was used to predict IPTR according to the published viscosity–temperature data of 10 heavy-oil samples from the Shengli Oilfield. Again, a good correspondence was found, and mean absolute and relative errors of 3°C and 4.6%, respectively, were reported. Therefore, the proposed model was confirmed to improve the prediction accuracy of the existing method, and provided a new method for calculating the IPTR of heavy-oil.

scholarly journals Analysis of the migration of a pollutant in the soil structure

2019 ◽  
pp. 130-134
Author(s):  
Maria Popa ◽  
Loredana Irena Negoita
Keyword(s):  
Grain Size ◽  
Physical Properties ◽  
Petroleum Product ◽  
Soil Structure ◽  
Petroleum Products ◽  
Depth Of Penetration ◽  
Liquid Petroleum Product ◽  
Accidental Pollution ◽  
Experimental Laboratory ◽  
First Time

This paper presents a study on the migration into a soil structure of a pollutant, a liquid petroleum product. Accidental pollution with a liquid petroleum product can also be considered to crack a transport pipeline. This leads to the displacement of the pollutant in the soil structure, both horizontally and vertically. The study presents an analysis of the migration velocity in the soil structure, with certain physical properties, of both the soil and the pollutant petroleum product. The penetration of petroleum products to a certain depth in soil is influenced by its humidity, grain size and density, pollution intensity, viscosity and pollutant density. It was possible to calculate for the first time at the experimental laboratory level the depth of penetration of the pollutant.

Ecological aspects of storage and transportation of diesel fuels

2021 ◽  
pp. 49-54
Author(s):  
V.Kh. Nurullayev ◽  
◽  
Kh.G. Ismayilova ◽  
L.M. Shikhiyeva ◽  
◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Fractional Composition ◽  
Freezing Temperature ◽  
Environmental Safety ◽  
Petroleum Products ◽  
Oil Products ◽  
Jet Fuels ◽  
Diesel Fuels ◽  
Ecological Aspects

The paper presents up-to-date and perspective requirements for the quality of diesel fuels. The effect of chemical, as well as fractional composition on the quality of diesel fuels is marked. The capability of obtaining prospective ecologically friendly diesel fuel based on the mixture of Azerbaijani oils via hydro-treatment in the presence of the catalyst of alumonickelmolibdene is noted. Ecologically friendly diesel fuels with ASTMD 4294 by sulfur - 0.039 % mass, ASTMD 3227 by sour sulfur - 0.006 % mass, ASTMD 5708 by metals: V ˃ 2 mg/kg, Ni ˃ 1 mg/kg, Fe ˃ 3 mg/kg, Na ˃ 8 mg/kg, as well as with the freezing temperature of ASTMD 97 – 50 оС have been obtained. Such kinds of diesel fuel meet EN standards and provide environmental safety in storage and transportation to the European countries. The prospect of obtaining and using buffer plug (mixture of petroleum products) during consistent pumping of various sorts of oil products without ecologic-economic risks of jet fuels is shown as well.

A New Method for Elastic-Plastic Contact Analysis of a Deformable Sphere and a Rigid Flat

2005 ◽  
Vol 128 (2) ◽  
pp. 221-229 ◽  
Author(s):  
Li Po Lin ◽  
Jen Fin Lin
Keyword(s):  
New Method ◽  
Contact Load ◽  
Rigid Sphere ◽  
The Finite Element Method ◽  
Numerical Errors ◽  
Elastic Regime ◽  
Contact Loads ◽  
Indentation Tests ◽  
Metal Materials ◽  
Contact Parameters

A new method is developed in the present study to determine the elastoplastic regime of a spherical asperity in terms of the interference of two contact surfaces. This method provides an efficient way to solve the problem of discontinuities often present in the reported solutions for the contact load and area or the gradients of these parameters obtained at either the inception or the end of the elastoplastic regime. The well-established solutions for the elastic regime and experimental data of metal materials using indentation tests are provided as the references to determine the errors of these contact parameters due to the use of the finite-element method. These numerical errors provide the basis to adjust the contact area and contact load of a rigid sphere in contact with a flat such that the dimensionless mean contact pressure Pave∕Y (Y: the yielding strength) and the dimensionless contact load Fpc∕Fec (Fec, Fpc: the contact loads corresponding to the inceptions of the elastoplastic and fully plastic regimes, respectively) reaches the criteria arising at the inception of the fully plastic regime, which are available from the reports of the indentation tests for metal materials. These two criteria are however not suitable for the present case of a rigid flat in contact with a deformable sphere. In the case of a rigid flat in contact with a deformable sphere, the proportions in the adjustments of these contact parameters are given individually the same as those arising in the indentation case. The elastoplastic regime for each of these two contact mechanisms can thus be determined independently. By assuming that the proportion of adjustment in the elastoplastic regime is a linear function, the discontinuities appearing in these contact parameters are absent from the two ends of the elastoplastic regime in the present study. These results are presented and compared with the published results.

Sign in / Sign up

Export Citation Format

Share Document