Complex investigations of heavy oil of Akanskoye deposits

Comprehensive studies of high-viscosity oils of Verey and Bashkirs-ray sediments of Akanskoye deposit are conducted In order to determine the basic physical and chemical characteristics. The separation of asphalt-free components is made by chromatography Their content In the oil Is defined. The Individual hydrocarbon composition of n-alkanes and Izoprenanov Is studied by gas-liquid chromatography. Geochemlcal factors are calculated. Such Important parameters as molecular weight, specific heat and the heat of combustion components are determined. The dependences of the specific heat and thermal conductivity on temperature and pressure are presented

Use of natural bitumen as raw materials for receiving bituminous insulating materials

As raw materials for production of bitumen it is expedient to use tars heavy oil the naphthene aromatic basis with the insignificant maintenance of normal paraffin (mainly to 2%). Expansion of a source of raw materials of bituminous production due to involvement of the natural bitumen of the Nagornoye field (the Republic of Tatarstan) confirms relevance of researches subject. For increase in productivity of bituminous installations as initial raw materials of receiving insulating materials the high-boiling natural bitumen fractions allocated at an atmospheric and vacuum distillation were used. As raw materials of process of oxidation the fraction, boiling away above 440 ° C was used. In natural bitumen of the Nagorny field chemical affinity of components, characteristic for bitumen of high-resinous oil of a Yaregskoye field is revealed. It is established that the increase in quantity of asphaltens in special bitumen leads to premature embrittlement of coverings on its basis

Study of disperse polymer systems for producing high-quality polymeric-bituminous materials

Distribution of components of disperse polymer systems used for producing bituminous materials was determined in terms of polymer quantity and particle size in o-xylene solution by conductometric dispersion analysis method using a Coulter counter. Polymer concentrations at which the dispersity, surface tension, and dynamic viscosity of the disperse system are optimum for blending the polymer with the bitumen and producing the polymeric-bituminous materials with assigned service properties are determined. © 2012 Springer Science+Business Media New York

Study of heavy resins hydrocarbon composition for the pyrolisis of impulse nuclea-magnetic spectroscopy

One of the areas for an efficient use of large-tonnage and yet scarce binder as bitumen is a broad introduction of bitumen emulsions in water for road and civil construction. The technology of emulsified bitumen preparation, compared with traditional "hot" technologies and the introduction of petroleum solvents has a number of significant advantages. First of all, it is a power-saving technology that does not require heating of the components to high temperatures, which is directly related to the reduction of such combustion products as flue gas and solvent vapor emissions into the atmosphere. Bituminous Emulsion (BE) can be used with some wet mineral material at a reduced temperature that reduces the dependence of work production from weather conditions, thereby prolonging a construction season. The low viscosity of BE allows to distribute the binder material throughout the surface of the mineral materials, which leads to improved accuracy of dosing and the decrease of its flow rate. A high adhesiveness of BE, a layer formation rate and the ability to mechanize many processes as much as possible make Water-Bitumen Emulsions (WBE) the most technologically advanced type of an organic binding material. Petrochemicals are used during the solution of WBE production technology issues satisfying modern requirements. In this aspect, heavy resins of hydrocarbon pyrolisis which are a byproduct and need their rational use are interesting in some extent. The composition and physico-chemical properties of heavy resins of gasoline, ethane and propane-butane fractions pyrolisis produced as the multi tonnage waste at OJSC "Kazanorgsintez" (OTPS) and OJSC "Nizhnekamskneftekhim" (NTPS). Preliminary the samples were obtained at different sampling depth of light fractions by atmospheric distillation original TPS and, respectively, with different initial boiling point. Group hydrocarbon composition of the samples was determined by pulsed NMR1

Thermodynamics of activation of a viscous current and structural dynamic analysis high-viscosity oil at ultrasonic influence

Complex calculations are carried out in a wide interval of temperatures at various ultrasonic duration of power characteristics in the viscous-current process of the difficult structural units (VCDS) at high-viscosity oil (HVO). Power characteristics are calculated of the viscous current activation. Researches are carried out of the high-viscosity oil samples by a pulse nuclear magnetic resonance. The work calculation results in the viscous current process are presented on the basis of the carried-out pilot studies of HVO power characteristics

Selection of efficient reagent compositions reducing hydraulic resistance in poly-phase liquid stream

© Research India Publications. During the present period in connection with electric power price increase especially timely is a question of pipeline overall performance increase for the purpose of decrease in operational expenses when pumping naphtha and oil products. One of this problem solution ways is using the additives reducing hydraulic resistance as dopant to pumping naphtha and oil products. The oil emulsion is characterized by high pitch and paraffin content. In spite of the fact that oil emulsion set point is low, its transportation on pipelines, especially in cold season, is strongly complicated owing to rod waxes formation. The pitches and asphaltenes present in naphtha aggravate this process, which leads to structuring liquid and increase in its viscosity. Experiments on Toms effect defining were made on equipment similar to presented in work [1]. In the oil-extracting industry for decrease in hydraulic resistance during naphtha pipeline transporting high-molecular polymers, soluble in naphtha are most often used. As shown in work [2], they are destruction-inclined and are not effective in circulation loop. Also it should be noted that the oil emulsion is poly-phase liquid, therefore the reagents applied to uniphase liquids are much less effective, and in some cases – are absolutely inapplicable. Besides with increase in water content in emulsion also the probability of naphtha direct emulsions formation that leads to padding complications of main product transportation process increases. In this case use of water-soluble and oil-soluble reagents composition [1-4] is justifie

Studying the structure of difficult structural unit of high-viscosity oil of the Zyuzeevskoye field by means of structural and dynamic analysis on the basis of a NMR and rheological researches

There are carried out physic-chemical researches of oil of the Zyuzeevskoye field. The atmospheric distillation is carried out for an assessment of the potential maintenance of light fractions. It̀s established that Zyuzeevskoye field's oil is heavy high-sulphurous, highresinous, low-paraffinic oil of the aromatic basis with the average maintenance of light fractions. The structure of oil disperse system (ODS) was studied by nuclear magnetic resonance, and durability given to the ODS - on change of rheological characteristics. The disperse structure of considered oil was estimated at backs - a spin relaxation on size of molecular mobility of its components. Results of work can be useful to experts in the field of development high-viscosity oils and natural bitumens to an assessment of complex influence of their natural structure with a potential group chemical composition

Scientific and practical aspects of development of ultrafine dispersions of modified petroleum oils

The possibility of dispersing depressing additives in diesel oil using a static radiator for production of ultrafine emulsions having disperse-phase particles sized between 2.5 and 4 μm is shown. Depressing additives such as olefinic hydrocarbon-based linear high-molecular compounds, which possess exceptional physico-chemical resistance to oxidation, thermoelasticity, and high mechanical properties, but do not exhibit a coagulating effect, are produced by nanophase catalysis technology. Compound (mixed) solvents are used as additive diluents. Laboratory tests of the additives in hydrofined diesel, furnace, and marine oils, and various crude-oil fractions showed a high depressing effect. © 2013 Springer Science+Business Media New York

New generation wave technology of residual oil-stock liquid-phase oxidation process intensification

In recent years the attitude to bituminous production in Russia significantly changed. In particular, scientific and practical need for naphtha sorting especially for bituminous production is proved. It was promoted by BASHNIYA NP technological classifications of naphtha from the point of view of their suitability for road asphalts production according to which highparaffinic resinous and paraffinic low-resinous naphtha are recognized unsuitable for production of improved brands road asphalts on the existing technological schemes. Heavy asphaltic naphtha is considered to be the most suitable. The problem of the Heavy Petroleum Residue (HPR) maximal involvement in processing is very timely under conditions of oil products amplifying competition in the market on one hand, and against the increasing requirements to their quality from the point of environment protection view - on the other. Development of scientifically applied bases and the bitumen production technology, applied to road construction, should be noted. Especially it is timely in connection with the bituminous production problems which recently became aggravated sharply in Russia. Timely task for oil refineries (oil refinery) currently is ever growing involvement of high-paraffinic resinous naphtha, with application of raw materials preliminary activation express methods (acoustic exaltation, rotor hydrodynamic source of mechanical oscillations, wave influence) in production of receiving oil oxidated asphalts of improved quality

Structural dynamic study of roof waterproofing materials

© 2014 by the author(s). The present research was aimed to develop the scientific applied principles and technologies of composite bituminous materials for civil engineering based on the investigation of the structures of polymer modifier and bitumen-polymer binder (BPB) on its basis with the use of nuclear magnetic resonance (NMR). The method of pulsed NMR was chosen as one of the rapid analysis methods that can be used for the analysis of bitumen-polymer systems, especially when assessing the group chemical composition of residual oil feedstock (ROF), bitumens and composite materials based on them. Using the method of pulsed NMR the regularities of the impact of modifier component composition on the changes of structural-group composition of the original and modified products were specified. Based on the results of research the optimal ratio of bitumen-polymer binder components was investigated, the manufacturability of the process for obtaining of composite bituminous materials for civil engineering with the aim of optimizing the quality of the final products was evaluated. Pulsed NMR - spectroscopy is suggested as input and output quality control of bituminous products. The regularities of redistribution of the phases with different molecular mobility and their relationship with the binder components were investigated. Rapid technique for quantifying the content of polymer in the solvent was developed