Analyzing the possibility of applying the infrared spectroscopy method in determining the boundaries of petroleum product mixture regions

2020 ◽  
Vol 10 (1) ◽  
pp. 64-69
Author(s):  
Sergey V. Sereda ◽  
◽  
Alexander Y. Lyapin ◽  
Egor S. Dubovoy ◽  
Fedor V. Timofeev ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Ir Spectroscopy ◽  
Petroleum Product ◽  
Experimental Studies ◽  
Hydrocarbon Composition ◽  
High Sensitivity ◽  
Petroleum Products ◽  
Spectroscopy Method ◽  
Monitoring Methods ◽  
Serial Transfer

Comparative analysis of in-line monitoring methods to determine the boundaries of the mixture region of petroleum products transported by serial transfer has been carried out. It has been found that the most promising method is infrared spectroscopy (IR spectroscopy) based on the absorption, reflection and dispersion of infrared energy. Currently, the use of IR spectroscopy for analyzing petroleum products is limited by an insufficient number of indirect methods for identifying and determining the structural fragments of hydrocarbon and non-hydrocarbon compounds. Experimental studies to assess the possibility of applying IR spectroscopy as a rapid method for determining the boundaries of mixture regions of various grades of petroleum products have been conducted. The purpose of the research: quantifying variations of IR spectra obtained from the analyzed test samples depending on the concentration of a certain grade of petroleum product in a petroleum product with a different hydrocarbon composition. The subject of the research: samples of AI-95 commercial motor gasoline (AB), inter-season diesel fuel (DT), TS-1 aviation kerosene (AK), and 1:1 ratio paired mixture thereof. The experimental results confirmed the high sensitivity of the IR spectroscopy method in determining changes to the hydrocarbon composition of petroleum product mixtures depending on the concentration thereof, which means a key conclusion about the possibi-lity of its use in controlling the mixing process of petroleum productstransported by serial transfer can be drawn.

scholarly journals LONG-TERM OXIDATION STABILITY OF GASOLINE ON ACCOUNT OF MIR MONITORING

Transport ◽  
2006 ◽  
Vol 21 (3) ◽  
pp. 218-222 ◽  
Author(s):  
Arunas Andziulis
Keyword(s):  
Ir Spectroscopy ◽  
Petroleum Product ◽  
Spectrum Analysis ◽  
Oxidation Kinetics ◽  
Oxidation Stability ◽  
Petroleum Products ◽  
Prolonged Time ◽  
Middle Range ◽  
Kinetics Of

The problem of oxidation stability of petroleum products often arises under the protracted transportation or tankage of products in the maritime terminal storages or in the national repositories for a prolonged time. So, this paper presents the results of study of auto‐oxidation kinetics of hydrocarbons in the gasoline, carried out by applying the method of middle range IR spectroscopy (MIR) monitoring aimed at the prediction of fuel oxidation stability. The results of study enabled to propose the virtual chemometrical model based on the MIR spectrum analysis which was applicable for testers which register the changes in concentration of olefins. As the object of research there was taken the gasoline which was carrying JV; > 50–90 of different structures of C2‐C10 olefins in unordered set of hydrocarbons which degrade the petroleum product.

The use of RbCl disks for the infrared spectroscopy detection of hydrated and dehydrated halloysite in mixtures with kaolinite

Clay Minerals ◽  
1985 ◽  
Vol 20 (4) ◽  
pp. 493-498 ◽  
Author(s):  
E. Mendelovici ◽  
A. Sagarzazu
Keyword(s):  
Infrared Spectroscopy ◽  
Ir Spectroscopy ◽  
Absorption Band ◽  
Intensity Ratio ◽  
Limit Of Detection ◽  
Alkali Halides ◽  
Spectroscopy Method ◽  
Artificial Mixtures

AbstractA simple IR spectroscopy method for detecting hydrated and dehydrated halloysite in artificial mixtures with kaolinite is described. The method is based on the exclusive ability of RbCl among the alkali halides to form a complex with halloysite but not with kaolinite. This complex absorbs at 3500 cm−1 when hydrated halloysite or admixed halloysite is examined in RbCl disks, the limit of detection being 15% in the kaolin admixture. Heating the clay powders or corresponding RbCl disks at 110°C affects the 3500 cm−1 frequency. The development of this absorption band together with a decrease in the intensity ratio of the 3690/3620 cm−1 frequencies is proportional to increasing amounts of halloysite in the kaolin admixtures. This method has an analytical applicability and is relatively rapid.

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.

Energetic properties of peat saturated with petroleum products

2020 ◽  
Vol 13 (2) ◽  
pp. 105-109
Author(s):  
E. S. Dremicheva
Keyword(s):  
Crude Oil ◽  
Diesel Fuel ◽  
Energy Use ◽  
Experimental Studies ◽  
Calorific Value ◽  
Petroleum Products ◽  
Ash Content ◽  
Motor Oil ◽  
Initial Sample

This paper presents a method of sorption using peat for elimination of emergency spills of crude oil and petroleum products and the possibility of energy use of oil-saturated peat. The results of assessment of the sorbent capacity of peat are presented, with waste motor oil and diesel fuel chosen as petroleum products. Natural peat has been found to possess sorption properties in relation to petroleum products. The sorbent capacity of peat can be observed from the first minutes of contact with motor oil and diesel fuel, and significantly depends on their viscosity. For the evaluation of thermal properties of peat saturated with petroleum products, experimental studies have been conducted on determination of moisture and ash content of as-fired fuel. It is shown that adsorbed oil increases the moisture and ash content of peat in comparison with the initial sample. Therefore, when intended for energy use, peat saturated with petroleum products is to be subjected to additional drying. Simulation of net calorific value has been performed based on the calorific values of peat and petroleum products with different ratios of petroleum product content in peat and for a saturated peat sample. The obtained results are compared with those of experiments conducted in a calorimetric bomb and recalculated for net calorific value. A satisfactory discrepancy is obtained, which amounts to about 12%. Options have been considered providing for combustion of saturated peat as fuel (burnt per se and combined with a solid fuel) and processing it to produce liquid, gaseous and solid fuels. Peat can be used to solve environmental problems of elimination of emergency spills of crude oil and petroleum products and as an additional resource in solving the problem of finding affordable energy.

First Nano-Infrared Spectroscopy and Imaging Measurements of Single Phospholipid Bilayers

2018 ◽  
Author(s):  
Adrian Cernescu ◽  
Michał Szuwarzyński ◽  
Urszula Kwolek ◽  
Karol Wolski ◽  
Paweł Wydro ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Ir Spectroscopy ◽  
Absorption Band ◽  
Spectral Region ◽  
Near Field ◽  
Phospholipid Bilayers ◽  
Model Systems ◽  
Absorption Bands ◽  
Protein Complement ◽  
20 Nm

<div><div>Scattering-mode Scanning Near-Field Optical Microscopy (sSNOM) allows one to obtain absorption spectra in the mid-IR region for samples as small as 20 nm in size. This configuration has made it possible to measure FTIR spectra of the protein complement of membranes. (Amenabar 2013) We now show that mid-IR sSNOM has the sensitivity required to measure spectra of phospholipids in individual bilayers in the spectral range 800 cm<sup>-1</sup>–1400 cm<sup>-1</sup>. We have observed the main absorption bands of the dipalmitoylphosphatidylcholine headgroups in this spectral region above noise level. We have also mapped the phosphate absorption band at 1070 cm<sup>-1</sup> simultaneously with the AFM topography. We have shown that we could achieve sufficient contrast to discriminate between single and multiple phospholipid bilayers and other structures, such as liposomes. This work opens the way to further research that uses nano-IR spectroscopy to describe the biochemistry of cell membranes and model systems.</div></div><div></div>

Mixture distribution for serial transfer of petroleum products

2017 ◽  
Vol 7 (2) ◽  
pp. 42-47
Author(s):  
Mikhail V. Lurie ◽  
◽  
Fedor V. Timofeev ◽  
Sergey V. Sereda ◽  
◽  
...  
Keyword(s):  
Mixture Distribution ◽  
Petroleum Products ◽  
Serial Transfer

scholarly journals Identification of Sleeper Support Conditions Using Mechanical Model Supported Data-Driven Approach

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3609
Author(s):  
Mykola Sysyn ◽  
Michal Przybylowicz ◽  
Olga Nabochenko ◽  
Lei Kou
Keyword(s):  
High Speed ◽  
Experimental Studies ◽  
Dynamic Interaction ◽  
Theoretical Research ◽  
Rolling Stock ◽  
Monitoring Methods ◽  
Beam Dynamic ◽  
Track Geometry ◽  
Data Driven Approach ◽  
Support Conditions

The ballasted track superstructure is characterized by a relative quick deterioration of track geometry due to ballast settlements and the accumulation of sleeper voids. The track zones with the sleeper voids differ from the geometrical irregularities with increased dynamic loading, high vibration, and unfavorable ballast-bed and sleeper contact conditions. This causes the accelerated growth of the inhomogeneous settlements, resulting in maintenance-expensive local instabilities that influence transportation reliability and availability. The recent identification and evaluation of the sleeper support conditions using track-side and on-board monitoring methods can help planning prevention activities to avoid or delay the development of local instabilities such as ballast breakdown, white spots, subgrade defects, etc. The paper presents theoretical and experimental studies that are directed at the development of the methods for sleeper support identification. The distinctive features of the dynamic behavior in the void zone compared to the equivalent geometrical irregularity are identified by numeric simulation using a three-beam dynamic model, taking into account superstructure and rolling stock dynamic interaction. The spectral features in time domain in scalograms and scattergrams are analyzed. Additionally, the theoretical research enabled to determine the similarities and differences of the dynamic interaction from the viewpoint of track-side and on-board measurements. The method of experimental investigation is presented by multipoint track-side measurements of rail-dynamic displacements using high-speed video records and digital imaging correlation (DIC) methods. The method is used to collect the statistical information from different-extent voided zones and the corresponding reference zones without voids. The applied machine learning methods enable the exact recent void identification using the wavelet scattering feature extraction from track-side measurements. A case study of the method application for an on-board measurement shows the moderate results of the recent void identification as well as the potential ways of its improvement.

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

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