Cleaning Sea Water from Petroleum Products by Using Rubber Powder

2011 ◽  
Vol 53 (5) ◽  
pp. 303-310
Author(s):  
Müzeyyen Marşoğlu ◽  
Ahmet Topuz ◽  
Ali Erdoğmuş ◽  
Oğuzhan Yurdalan ◽  
Sertaç Bilgin ◽  
...  
CORROSION ◽  
1957 ◽  
Vol 13 (10) ◽  
pp. 92-96 ◽  
Author(s):  
ROBERT M. PINES ◽  
JOHN D. SPIVACK

Abstract Laboratory studies indicate that N-oleoyl sarcosine (I) is an effective oil soluble rust inhibitor in solution in gasoline, mineral oil and silicone lubricants. Rusting tests used included: Turbine Oil Rusting Test (ASTM D665-54), a Static Immersion Test, Humidity Cabinet Test (JAN H-792), Static Water Drop Test (MIL-L-17353 Bu. Ord.). In addition, a number of auxiliary tests were run to indicate the effect of (I) on other properties of the test liquid. Hydrocarbon solutions of N-oleoyl sarcosine are particularly effective in preventing rusting in the presence of synthetic sea water and in resisting water extraction of the inhibitor. 5.8.2


2021 ◽  
Vol 16 (2) ◽  
pp. 98-107
Author(s):  
A. F. Sokolskiy ◽  
A. Sh. Kanbetov ◽  
N. N. Popov ◽  
B. A. Mutashev ◽  
N. I. Rabazanov

Aim. This study was an attempt by the authors to identify the impact of oil production in the Caspian Sea on the quality of waters surrounding oil and gas-production platforms.Material and Methods. In 2018, by order of the Committee for Forestry and Wildlife of the Ministry of Agriculture of the Republic of Kazakhstan, Kazekoproekt carried out comprehensive marine research to assess the state of biological resources in the eastern part of the Caspian Sea. All studies were carried out according to standard methods accepted in international practice. Samples were collected in summer (July-August) 2018 and autumn (September) 2018.Results. An analysis of the materials of environmental studies carried out in the water area of the eastern part of the Caspian Sea in 2018 established the absence of biogenic concentrations in sea water in excess of the standard indicators. It was found that in the waters surrounding several stations in summer and autumn, concentrations of oil products were exceeded. The concentrations of pesticides in the waters of the northern Caspian Sea recorded in 2018 were not detected.Conclusion. It was found that in the eastern part of the Caspian Sea in 2018 there was no concentration of biogenic elements in sea water above the standard indicators. Of the heavy metals, an excess of maximum permissible concentrations was found only at one station - of copper in the summer over 159 sq. m and in the autumn over 121 sq. m. Of particular concern is the fact that at several stations in summer and autumn excessive concentrations of petroleum products were recorded. The concentrations of pesticides in the waters of the northern Caspian Sea recorded in 2018 were not detected.


Author(s):  

The low-depth Azov Sea coastal waters quality has been investigated. The sea faces considerable human-originated loads caused by the different origin pollutants river runoff. The river runoff pollutants comprise petroleum products, synthetic surface-active substances, phenols, chlorinated hydrocarbons, and heavy metals. Results of the investigation intended to affirm the suppositions on possibilities of the Azov Sea Temryuk Bay and Taganrog Bay coastal waters quality forecasting with the use of limited hydrological and hydro/chemical information obtained from the control stations have been presented. Comparison of the most significant water quality characteristics of river runoff and sea water has confirmed such a possibility. Further studies will be aimed at founding of the correlation dependencies for the most hazardous pollutants.


CORROSION ◽  
1957 ◽  
Vol 13 (4) ◽  
pp. 69-74
Author(s):  
DAVID B. BOIES ◽  
J. I. BREGMAN

Abstract In testing corrosion inhibitors for use in refined petroleum products, very careful consideration must be given to the effect of the environmental conditions on the performance of the inhibitors. Only by a careful study of the variables encountered in any specific corrosion problem can an intelligent selection of the appropriate inhibitor be made. Variables studied in this work include the degree of agitation, the concentration of dissolved solids in the water phase, the pH, the temperature, oxygen content, and the nature of the hydrocarbon phase. A brief discussion of testing procedures also is included. Results for a commercial automotive gasoline, aviation gasoline, jet fuel and a No. 2 fuel oil are discussed. It is shown that some inhibitors which are effective with sea water under dynamic conditions may be completely in-effective with sea water under static conditions. Some inhibitors which are very effective at room temperature may be required at double the concentration at 100 F and may be ineffective at 140 F at five times the room temperature concentration. The concentration of inhibitor required to protect under any specified set of environmental conditions may vary considerably with different refined products. This also may be true for different supplies of products of the same type (e.g., different gasolines). 5.8.1


Author(s):  
I. V. Cherunova ◽  
A. M. Korinteli ◽  
M. P. Stenkina ◽  
T. Yu. Lesnikova

The article presents data on the influence of the marine environment on textile materials. Aggressive components of the marine environment that contact the surface of clothing (sea salt and oil) are justified. Sea salt is an integral part of seawater. It accumulates in the clothing structure. Oil is included in the components of seawater in emergency situations at offshore oil and petroleum products and sea transport facilities. This leads to a change in the properties of textile materials, which depend on the concentration of aggressive components in the structure of textile materials. The active concentration of aggressive components in textiles is determined by its ability to absorb liquid. Specific features of changing the volume of various textile fibers during interaction with liquids are established. Structure of sea salt and the chemical composition of oil. This determines the change in the properties of the textile in contact with them. The structure of sea salt and the chemical composition of oil is justified. This determines the change in the properties of textiles. As a result of the systematization of modern data on clothing materials that are used in marine technology, the information base of the leading modern fibrous materials for protective clothing was formed. The reference materials for research are allocated. It was found that the presence of sea salt in a moist contact medium with a surface of a special fabric on a cotton basis for all samples of materials led to a decrease in their capillarity. It has been established that packages of materials based on mixed-fiber fabrics have permeability parameters with respect to crude oil below the cotton garment surfaces. The application in combination with such materials of holofiber insulation reduces the level of saturation of clothing with the liquids examined. The article presents experimental data on the permeability of sea water and oil in special materials for clothing. The work was supported by the Ministry of Education and Science of Russia in the Don State Technical University within the framework of the State task 2017-2019 under the project No. 11.9194.2017/БЧ.


Author(s):  
С.И. Корягин ◽  
Н.Л. Великанов ◽  
О.В. Шарков

В работе выполнена сравнительная оценка радиальных напряжений на границе раздела слоев металла и полимерного покрытия судовых композиционных элементов. Поле напряжений создается при изготовлении судовых композиционных элементов с большой кривизной рабочих поверхностей. Учтено влияние на адгезионную прочность действия факторов внешней среды. При эксплуатации морских судов характерно влияние на композиционные элементы воздуха, морской воды, нефтепродуктов. Проведены экспериментальные исследования композиционных криволинейных элементов с радиусом кривизны 300 мм. Подтверждена корректность предложенной расчетной зависимости. Показано, что основной причиной появления радиальных напряжений в композиционных элементах является различие коэффициентов Пуассона и линейного расширения материалов. Результаты проведенного исследования можно использовать для расчета радиальных напряжений на границе раздела слоев в зависимости от характеристик прочности судовых композиционных элементов. In this paper, a comparative assessment of radial stresses at the interface between metal layers and polymer coating of ship composite elements is performed. The stress field is created in the manufacture of ship composite elements with a large curvature of the working surfaces. The influence of environmental factors on the adhesive strength is taken into account. When operating marine vessels, the influence of air, sea water, and petroleum products on the composite elements is characteristic. Experimental studies of composite curved elements with a radius of curvature 300 mm were conducted. The correctness of the proposed calculation relationship was confirmed. It is shown that the main reason for the appearance of radial stresses in composite elements is the difference between the Poisson coefficients and the linear expansion of materials. The results of this research can be used to calculate radial stresses at the interface of layers depending on the strength characteristics of ship composite elements.


1919 ◽  
Vol 87 (2257supp) ◽  
pp. 211-211
Author(s):  
Paul T. Bruhl
Keyword(s):  

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