scholarly journals Development of Anti-Wear/Antioxidant Additives for High Quality Metalworking Fluid from Waste Petroleum Products

2014 ◽  
Vol 04 (01) ◽  
pp. 33-40
Author(s):  
Noura Al Mehbad ◽  
A. M. A. Omar
Keyword(s):  
Petroleum Products ◽  
High Quality ◽  
Metalworking Fluid ◽  
Antioxidant Additives

scholarly journals IMPROVEMENT OF TECHNICAL MEANS OF CONTROL SYSTEMS AND PROTECTION OF THE MARINE ENVIRONMENT FROM OIL POLLUTION

2021 ◽  
pp. 63-70
Author(s):  
V.I. Istomin ◽  
◽  
S.E. Tverskaya ◽  
Keyword(s):  
Control Systems ◽  
Marine Environment ◽  
Water Purification ◽  
High Efficiency ◽  
Oil Pollution ◽  
Petroleum Products ◽  
Environment Pollution ◽  
Separation System ◽  
High Quality

Data on environmental monitoring and the marine environment pollution by oil are presented and new highly efficient technical means of oil-containing water purification systems are developed, which have high quality of oil-containing water purification, a long service life of filter elements, simple design and operation. The combined separation system for the purification of oily waters has a high efficiency and provides the purification of oily waters to a concentration of petroleum products lower than 5 million-1. The design of the regenerated filter and separator with granular loading ensures the regeneration of filter elements without disassembling and replacing them, which significantly simplifies the maintenance and operation of the system.

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 Specific Tactics of Obtaining Criminalistically Significant Information at the Initial Stage of Investigating Thefts of Oil and Petroleum Products During Their Storage and Transportation

2021 ◽  
pp. 130-139
Author(s):  
Alexander Milius
Keyword(s):  
Petroleum Products ◽  
Criminal Prosecution ◽  
Criminal Cases ◽  
High Quality ◽  
Comprehensive Investigation ◽  
Significant Information ◽  
Initial Stage ◽  
Correct Sequence

Under the current legislation, the investigator is responsible for investigating and solving all cases in progress. A high-quality comprehensive investigation of criminal cases connected with theft of oil and petroleum products makes it possible to fulfil these duties successfully. The establishment of the guilt of a person in the process of proving during the investigation of theft of oil and petroleum products, which belong to the category of grave crimes, presents certain difficulties connected with the specific features of such crimes. If a tactically correct sequence of investigative actions is chosen at the initial stage of investigation, the investigator may get a considerable amount of relevant criminalistic information, that will further make it possible to achieve the goal of the investigation in the form of criminal prosecution against the guilty person. The author examines some specific features of the tactics of investigative actions at the initial stage of investigating thefts of oil and petroleum products during their storage and transportation at the fuel and energy enterprises. The author also presents recommendations on improving the tactics of investigative actions in the investigation of thefts of oil and petroleum products.

scholarly journals Comparative analysis of key indicators on the basis of processing crude oil of different compositions in the fields

2020 ◽  
Vol 130 (1) ◽  
pp. 23-28
Author(s):  
R.O Orynbassar ◽  
◽  
T.S. Kaynenova ◽  
L.K. Tastanova ◽  
◽  
...  
Keyword(s):  
Raw Materials ◽  
Operation Mode ◽  
Component Composition ◽  
Petroleum Products ◽  
Oil Refinery ◽  
Oil Fields ◽  
Oil Refining ◽  
High Quality ◽  
Processing Scheme ◽  
Key Indicators

The main problem in the oil refining industry is variable composition of raw materials. In order to produce high-quality products, it is proposed to forecast and plan the production activity of oil refinery depending on the composition of raw materials. For this purpose, comparisons were made for oil fields in the Aktobe region and for open distillates obtained during primary pumping. The main indicators of oil from the Alibekmola and Bozoi fields, i.e. the relative density and viscosity of oil and petroleum products are determined under laboratory conditions. It was found that depending on the component composition and location of the field, the main indicators of oil are different. These indicators are important for determining the quality, efficiency of application, selection of the processing scheme, transportation of oil and petroleum products. In addition, it allows to optimize the processing process,monitor constantly the operation mode and get high-quality products.

scholarly journals ИССЛЕДОВАНИЕ СКВАЖИН НОВЫХ МЕСТОРОЖДЕНИЙ МАНАВСКОЙ НЕФТИ

World Science ◽  
2018 ◽  
Vol 1 (10(38)) ◽  
pp. 46-52
Author(s):  
Натела Хецуриани ◽  
Есма Ушараули ◽  
Мадлена Чхаидзе ◽  
Тамар Шатакишвили ◽  
Мака Копалеишвили
Keyword(s):  
Petroleum Products ◽  
Raw Material ◽  
High Yield ◽  
High Quality ◽  
Ir Spectrometry ◽  
Diesel Fuels ◽  
Geochemical Parameters ◽  
Yield Of Light Fractions ◽  
Gas Chromatographic Method ◽  
Physical And Chemical

An investigation of oils from new wells of Manavi oil deposit was carried out. Physical and chemical and geochemical parameters, as well as functional groups were determined by IR spectrometry. Using simulative chromatographic distillation of oil from the #12 well naphtha 35-180 °C and diesel fractions were obtained. Individual paraffinic, naphthenic and aromatic hydrocarbons were identified in naphtha by gas chromatographic method and distribution of individual n-paraffinic hydrocarbons in urea concentrate was determined in diesel fraction. The results of the investigation show that due to low content of sulfur, tar- asphaltenic compounds and high yield of light fractions the Manavi oil can be recognized as a high quality paraffinic type of oil. Physical and chemical characteristics, chemical nature and high yield of light fractions outline a good perspective for usage of Manavi deposit oil as a raw material for production of commodity petroleum products like high quality organic solvents, aviation and diesel fuels and various petroleum oils.

Some problems of objective-prism spectra classification

1966 ◽  
Vol 24 ◽  
pp. 51-52
Author(s):  
E. K. Kharadze ◽  
R. A. Bartaya
Keyword(s):  
Short Wave ◽  
High Quality ◽  
Stellar Spectra ◽  
Objective Prism

The unique 70-cm meniscus-type telescope of the Abastumani Astrophysical Observatory supplied with two objective prisms and the seeing conditions characteristic at Mount Kanobili (Abastumani) permit us to obtain stellar spectra of a high quality. No additional design to improve the “climate” immediately around the telescope itself is being applied. The dispersions and photographic magnitude limits are 160 and 660Å/mm, and 12–13, respectively. The short-wave end of spectra reaches 3500–3400Å.

A non-cyanide method of electropolishing silver

1978 ◽  
Vol 36 (1) ◽  
pp. 146-147
Author(s):  
R. L. Lyles ◽  
S. J. Rothman ◽  
W. Jäger
Keyword(s):  
Electron Microscopy ◽  
Sulphuric Acid ◽  
Methyl Alcohol ◽  
Health Hazards ◽  
Silver Alloy ◽  
High Quality ◽  
Silver Alloys ◽  
Free Sample ◽  
Specimen Quality ◽  
Standard Techniques

Standard techniques of electropolishing silver and silver alloys for electron microscopy in most instances have relied on various CN recipes. These methods have been characteristically unsatisfactory due to difficulties in obtaining large electron transparent areas, reproducible results, adequate solution lifetimes, and contamination free sample surfaces. In addition, there are the inherent health hazards associated with the use of CN solutions. Various attempts to develop noncyanic methods of electropolishing specimens for electron microscopy have not been successful in that the specimen quality problems encountered with the CN solutions have also existed in the previously proposed non-cyanic methods.The technique we describe allows us to jet polish high quality silver and silver alloy microscope specimens with consistant reproducibility and without the use of CN salts.The solution is similar to that suggested by Myschoyaev et al. It consists, in order of mixing, 115ml glacial actic acid (CH3CO2H, specific wt 1.04 g/ml), 43ml sulphuric acid (H2SO4, specific wt. g/ml), 350 ml anhydrous methyl alcohol, and 77 g thiourea (NH2CSNH2).

A High Resolution Scanning Microscope

1968 ◽  
Vol 26 ◽  
pp. 356-357
Author(s):  
A. V. Crewe ◽  
J. Wall ◽  
L. M. Welter
Keyword(s):  
High Resolution ◽  
Field Emission ◽  
Spherical Aberration ◽  
Focal Length ◽  
Spot Size ◽  
Emission Source ◽  
Field Of View ◽  
Scanning Microscope ◽  
Magnetic Lens ◽  
High Quality

A scanning microscope using a field emission source has been described elsewhere. This microscope has now been improved by replacing the single magnetic lens with a high quality lens of the type described by Ruska. This lens has a focal length of 1 mm and a spherical aberration coefficient of 0.5 mm. The final spot size, and therefore the microscope resolution, is limited by the aberration of this lens to about 6 Å.The lens has been constructed very carefully, maintaining a tolerance of + 1 μ on all critical surfaces. The gun is prealigned on the lens to form a compact unit. The only mechanical adjustments are those which control the specimen and the tip positions. The microscope can be used in two modes. With the lens off and the gun focused on the specimen, the resolution is 250 Å over an undistorted field of view of 2 mm. With the lens on,the resolution is 20 Å or better over a field of view of 40 microns. The magnification can be accurately varied by attenuating the raster current.

Quantitative defect studies in semiconductor TEM samples prepared by low angle ion milling

1995 ◽  
Vol 53 ◽  
pp. 512-513
Author(s):  
L. Mulestagno ◽  
J.C. Holzer ◽  
P. Fraundorf
Keyword(s):  
Sample Preparation ◽  
Milling Time ◽  
High Density ◽  
Low Density ◽  
Ion Milling ◽  
High Quality ◽  
Variable Angle ◽  
Major Disadvantage ◽  
Induced Defects

Due to the wealth of information, both analytical and structural that can be obtained from it TEM always has been a favorite tool for the analysis of process-induced defects in semiconductor wafers. The only major disadvantage has always been, that the volume under study in the TEM is relatively small, making it difficult to locate low density defects, and sample preparation is a somewhat lengthy procedure. This problem has been somewhat alleviated by the availability of efficient low angle milling.Using a PIPS® variable angle ion -mill, manufactured by Gatan, we have been consistently obtaining planar specimens with a high quality thin area in excess of 5 × 104 μm2 in about half an hour (milling time), which has made it possible to locate defects at lower densities, or, for defects of relatively high density, obtain information which is statistically more significant (table 1).

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