scholarly journals Analysis of the criteria of efficiency of work of separators for the field of hydrocarbon raw

2019 ◽  
pp. 114-119
Author(s):  
Valeriy V. Piven ◽  
Vladislav S. Shchelkonogov
Keyword(s):  
Technological Process ◽  
Raw Materials ◽  
Comprehensive Assessment ◽  
Technological Scheme ◽  
Qualitative Composition ◽  
Separation Processes ◽  
Process Flow ◽  
Multi Stage ◽  
Flow Diagrams

Assessment of the quality of separation of hydrocarbon raw during its field preparation is necessary to determine the efficiency of the entire technological process of preparation. The absence of complex criteria for assessing the quality of separation for multi-stage processes does not allow one to obtain unambiguous solutions in justifying the process flow diagrams and equipment for separation. We have analyzed the typical technological scheme of separation of hydrocarbon raw materials and existing criteria for separation processes. It is proposed to use the criterion for a comprehensive assessment of the separation processes of hydrocarbon raw materials, allowing calculating the efficiency of the process, taking into account the possible production of intermediate fractions and their qualitative composition

scholarly journals ESTIMATION OF STRUCTURAL SIMILARITY FOR CONTROL OF MICROELECTRONIC PRODUCTS

2019 ◽  
Vol 1 (7) ◽  
pp. 14-18
Author(s):  
Yu. A. Gusman ◽  
Yu. A. Pichugin ◽  
A. O. Smirnov
Keyword(s):  
Production Process ◽  
Technological Process ◽  
Good Reason ◽  
Structural Similarity ◽  
Fixed Number ◽  
Crystal Plate ◽  
Technological Scheme ◽  
Real Sample ◽  
Numerical Example

In this paper we consider the technological process of manufacturing micromechanical gyroscopes, the output of which is divided into cells of the crystal plate and each cell contains a fixed number of product elements. The estimation of structural similarity for measurements of technical characteristics of various devices is offered. A relatively large value of structural similarity assessment means that there is a dependence of the quality of the manufactured devices on the position on the crystal plate. This gives a good reason for further work to improve the quality of the process or to change the technological scheme as a whole. The article considers a numerical example based on a real sample of microelectronic products. The proposed method can be used both in the process of adjustment of the production process and in the rejection of products, when further configuration of the equipment is no longer possible.

Methodical approaches to the substantiation of accommodation of the object for food products in the boundaries of sanitary-protective zones of enterprises of other lines of the industry

2020 ◽  
Vol 99 (11) ◽  
pp. 1308-1314
Author(s):  
Irina V. May ◽  
Svetlana A. Vekovshinina ◽  
Svetlana V. Kleyn ◽  
Nadejda V. Nikiforova
Keyword(s):  
Technological Process ◽  
Food Production ◽  
Raw Materials ◽  
Food Products ◽  
Evidence Base ◽  
Hazard Identification ◽  
Production Facility ◽  
Protection Zone ◽  
Quality Of Food

Introduction. In conditions of the high density of urban development, efficient use of municipal lands is of particular relevance. Food production facilities make up a significant sector of many cities’ economy, including centers of ferrous and non-ferrous metallurgy, chemistry, petrochemistry, mining, etc., i.e., settlements where significant areas are limited in use by sanitary protection zones. Resolution of the Government of the Russian Federation dated March 3, 2018, No. However, such a justification is a scientific and methodological problem since there is no regulatory consolidation of the procedure. The purpose of the study was to develop and practically test methodological approaches to justification the admissibility (inadmissibility) of placing a food production facility in the sanitary protection zone of enterprises in other line of the industry. Material and methods. Design and technical documentation were studied on sources of data on air quality at the industrial site and indoors, and the quality of food products. Authors performed hygienic assessment of the safety and quality of air, raw materials, water, and manufactured food products for compliance with sanitary requirements and standards. When analyzing potential threats to contamination of food products, a mechanism was used to isolate critical points of the technological process. Results. An algorithm for the formation of the evidence base of the absence (presence) of the negative impact on food quality, the fact of the location of the production facility in the sanitary protection zone of a large industrial enterprise on the quality of food products is proposed. On the example of the production of juices from natural concentrated products, each step of the algorithm has been worked out: analysis of the technological process of production; hazard identification, instrumental measurements of the quality of environmental objects and raw materials and products. Conclusion. The proposed algorithm allows creating a reliable evidence base for deciding on the admissibility (inadmissibility) of the location of the food production facility in the sanitary protection zone of the enterprise with a different type of activity, tested in real conditions of a large industrial unit. The algorithm can be used as a base for the widespread use and further improvement.

scholarly journals Determination of the comprehensive indicator of pastille with the use of multi-component fruit-berry paste

2021 ◽  
Vol 3 (3(59)) ◽  
pp. 46-49
Author(s):  
Kateryna Kasabova ◽  
Nataliа Shmatchenko ◽  
Aleksey Zagorulko ◽  
Andreii Zahorulko
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Raw Materials ◽  
Control Sample ◽  
Comprehensive Assessment ◽  
Biologically Active ◽  
Human Need ◽  
Pectin Substances

The object of research in this work is the technology of pastille with the addition of multicomponent fruit and berry paste. Pastille are becoming more and more popular in the world for all segments of the population. Usually, the main ingredients for their manufacture are fruit raw materials, a structurant and egg white, therefore, the products contain practically no fat and have a low calorie content. It is proposed to replace 75 % of traditional applesauce in the recipe with a multicomponent fruit and berry paste made from apples, cranberries, hawthorn. It was found that such a composition makes it possible to obtain products with an increased content of pectin substances, ascorbic acid, polyphenols, including anthocyanins, catechins and flavonols. The work is aimed at studying the application of the principles of qualimetry to determine a complex indicator of the quality of pastille For this, the organoleptic and physicochemical indicators of the quality of the developed pastille were taken from previous studies and the chemical composition was determined and the content of biologically active substances was calculated relative to the average daily human need. The content of pectin substances in new products increases 1.7 times and satisfies the average daily human need by 18.2 %. The content of ascorbic acid is 4.2 times higher, which is 20.5 % of the average daily human need, and polyphenols 3.2 times higher – 579.0 %. The data obtained make it possible to consider the developed product functional. The next step was to determine the complex indicator of products by the qualimetric method. For a more complete disclosure of product properties, a structure of pastille quality indicators has been developed – a «tree of properties». Thus, the comprehensive assessment of the quality of the control sample corresponds to the indicator «good» (0.66), while the integrated assessment of pastille with multicomponent paste corresponds to the indicator «very good» (0.98). On the basis of organoleptic, physicochemical indicators and chemical composition of products, it was established that the indicator of a comprehensive assessment of the quality of a pastille with a multicomponent paste, taking into account all group indicators, is 48 % higher compared to the control.

scholarly journals Comprehensive solving tasks of deep processing of titanium-magnetite ores

2020 ◽  
Vol 76 (1) ◽  
pp. 12-18
Author(s):  
S. V. Kornilkov ◽  
A. N. Dmitriev ◽  
A. E. Pelevin
Keyword(s):  
Raw Materials ◽  
New Technology ◽  
Ural Region ◽  
Technological Scheme ◽  
Deep Processing ◽  
Magnetite Concentrate ◽  
Ore Processing ◽  
Equipment Modernization ◽  
Titanium Magnetite

Despite the plants of the Ural region have significant mining capacities, they are buying raw materials from other regions, therefore the task of wastes minimization is a perspective of supporting their raw materials base. A technology was proposed to increase the quality of titanium-magnetite concentrate, comprising dividing of the ore into two technological grades – a rich and a poor ones following separate crushing and concentration of the grades at separate sections. Due to this technological scheme, the ore is divided into easy-concentrated and hard-concentrated grades at the concentration stage, but not at the stages of preparation to development, mining, transporting and crushing. The advantage of the new technology is the relative simplicity of equipment modernization, since the technological scheme of the ore processing is modified only at the concentration plant. Under laboratory conditions, an iron-vanadium concentrate with iron content of 67.1% and vanadium pentoxide of 0.6% was obtained.

scholarly journals Improvement of quality of recirculated water supply of oil refineries

2021 ◽  
Vol 3 (1) ◽  
pp. 75-81
Author(s):  
E. E. Ergozhin ◽  
A. A. Tskhay ◽  
T. K. Chalov ◽  
T. V. Kovrigina ◽  
Ye. A. Melnikov
Keyword(s):  
Water Supply ◽  
Reverse Osmosis ◽  
Technological Process ◽  
Technological Scheme ◽  
Water Supply Systems ◽  
Recycled Water ◽  
Oil Refineries ◽  
Supply Systems ◽  
Reverse Osmosis Unit

The relevance of this work is associated with the need to reduce the volume of water used by returning it to the start of the technological process. Thus, the work aims to improve the quality of the recycled water supply to petrochemical and oil refineries, in particular Atyrau Refinery LLP. This article provides data on purification of blowdown water by reverse osmosis method. A pilot reverse osmosis unit with a capacity of 600 l / h has been manufactured and a technological scheme for purification to standards that meet the requirements of make-up water has been developed, as well as a technical task for the design of industrial recycling water supply systems and appropriate recommendations have been provided.

scholarly journals SEMI-INDUSTRIAL TECHNOLOGY FOR SYNTHESIS OF 2-(1,3-DITHIOLAN-2-YLIDENE) MALONONITRILE

2020 ◽  
Vol 63 (4) ◽  
pp. 68-73
Author(s):  
Konstantin V. Lipin
Keyword(s):  
Raw Materials ◽  
Synthesis Method ◽  
Production Method ◽  
Reaction Mass ◽  
Technological Scheme ◽  
Technological Equipment ◽  
State University ◽  
Synthesis Time ◽  
Multi Stage ◽  
Short Synthesis

This article analyzes the developments of the scientific team of the Chemical and Pharmaceutical Faculty of Chuvash State University I.N. Ulyanov in the field of synthesis of 1,3-dithioheterocycles and based on them a method of synthesis of 2-(1,3-dithiolane-2-ylidene) malononitrile suitable for scaling was developed. The basis was chosen for the well-known three-component synthesis method, which has several disadvantages: the use of toxic and inaccessible reagents, multi-stage. During laboratory testing, this method of synthesis was improved. The developed method for producing 2-(1,3-dithiolane-2-ylidene)malononitrile consists of reacting malononitrile with carbon disulfide in the presence of potassium carbonate, adding dichloroethane to the resulting mixture, and boiling the mixture for 10-15 min. The final compound is isolated by diluting the reaction mass with water. Based on the developed method, a technological scheme for the synthesis of 2- (1,3-dithiolane-2-ylidene)malononitrile was compiled. The selected production method consists of four technological operations: mixing the starting components in the reactor, heating and boiling the reaction mixture, diluting the reaction mass with water and crystallizing the product, filtering 2-(1,3-dithiolane-2-ylidene)malononitrile. The first three stages can be carried out in one technological equipment - a reactor equipped with a stirrer and a jacket. For filtering it is necessary to use a nutsche filter. Based on the developed methodology, a technological scheme has been created, its description has been compiled. The design process capacity is 5 kg/h of 2-(1,3-dithiolane-2-ylidene)malononitrile. The necessary equipment is calculated. A standard mixing reactor with a volume of 0.1 m3 and a nutsche filter NFP-0.25-630 PP were selected. To mix the reaction mass, the reactor should be equipped with an anchor type mixer. The developed technology compares favorably with the use of simple and cheap raw materials common in the chemical industry, the short synthesis time and the use of standard technological equipment.

Sonochemistry Effects Influence on the Adjustments of Raw Materials and Finished Goods Properties in Food Production

2016 ◽  
Vol 870 ◽  
pp. 691-696 ◽  
Author(s):  
N.V. Naumenko ◽  
I.V. Kalinina
Keyword(s):  
Technological Process ◽  
Food Production ◽  
Raw Materials ◽  
Physical Nature ◽  
Protein Matrix ◽  
Fermentation Processes ◽  
Water Activation ◽  
Biotechnological Processes ◽  
The Cost

Nowadays there are many ways to improve the quality of raw materials, to shorten the technological process and increase the persistence of bread and flour products. Most of them are based on the introduction of extra components to the recipe to facilitate fermentation processes intensification and protein matrix swelling starch development. Introduction of additional components often causes an increase in the cost of finished products and falls on the consumers spending. Also, we cannot ignore the fact that the introduction of extra components changes the traditional recipe much. Because of this, the study of the physical nature factors that are used for intensification of biotechnological processes becoming very popular. The article points out that physical nature factors used to intensify that biotechnological processes can be viewed by water activation that obtained by ultrasound (US) exposure.

scholarly journals Development of Basic Technology for Obtaining Sodium Alginate from Brown Algae

2020 ◽  
Author(s):  
Nina Sokolan ◽  
Lyudmila Kuranova ◽  
Nikolay Voron’ko ◽  
Vladimir Grokhovskiy
Keyword(s):  
Sodium Alginate ◽  
Brown Algae ◽  
Dry Matter ◽  
Raw Materials ◽  
Fourier Method ◽  
Technological Scheme ◽  
A Value ◽  
Basic Technology ◽  
Alginic Acids

The possibility of making sodium alginate from a by-product (fucus semi-finished product), obtained by producing an extract from brown algae of the Fucus family – fucus bubbly (F.vesiculosus), has been studied. It has been found that up to 80% of the alginic acids contained in the feedstock remain in the fucus semi-finished product, which can also be isolated and used. The principal technology of sodium alginate from the fucus semi-finished product is developed, consisting of the following main stages: preparation of raw materials, reduction, pretreatment, extraction of alginates, isolation of alginic acid, production of sodium alginate, drying. As a result of optimization of the technological scheme, it was possible to increase the yield and improve the quality of the product: the yield of sodium alginate was 4.5% (which is 20% higher than the original), the content of alginic acids increased by 7% and was 92% in terms of dry matter, kinematic the viscosity increased almost twofold - its value reached a value of 500 cSt. Investigations carried out by the Fourier method of IR spectroscopy on the Shimadzu IR Tracer-100 ( Japan) showed that the sodium alginate obtained from the fucus semi-finished by optimized technology is not inferior in quality to sodium alginate produced from laminaria (Sigma Aldrich (USA).) Sodium alginate, made from the fucus semi-finished product, can be used as one of the components of gelling fillings for the production of canned fish in jellies. A technological scheme for processing algae is proposed.

scholarly journals The use of mutton in sausage production

10.5219/1602 ◽  
2021 ◽  
Vol 15 ◽  
pp. 506-512
Author(s):  
Juraj Čuboň ◽  
Peter Haščík ◽  
Peter Herc ◽  
Lukáš Hleba ◽  
Miroslava Hlebová ◽  
...  
Keyword(s):  
Amino Acids ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Protein Content ◽  
Technological Process ◽  
Raw Materials ◽  
Sheep Meat ◽  
Mda Content

The work analyzes the quality of sausage with mutton. The proportion of individual commodities was as follows 40% sheep thigh, 40% pork shoulder, and belly 20%. The protein content in pork shoulder was 20.11 g.100g-1 in sheep thigh 23.65 g.100g-1 and sausage 19.89 g.100g-1. Of the monitored amino acids, the highest content was in lysine, in the sausage was 1.9 g.100g-1 and of the raw materials in the belly 2.1 g.100g-1. We also found a higher proportion of leucine 1.7 g.100g-1 in both sausage and sheep thighs. The arginine content in the sausage was also high 1.39 g.100g-1. We found a high content of palmitic acid in the pork shoulder of 24.38 g.100g-1 FAME. The content of palmitic acid in sheep meat was 24.32 g.100g-1 FAME and in sausage 24.16 g.100g-1 FAME. The content of stearic acid in the pork shoulder was 10.89g.100g-1 FAME, in the sheep thigh 10.64g.100g-1 FAME, in the belly 11.07 g.100g-1 FAME, and the sausage 10.92 g.100g-1 FAME. The MDA content in sheep meat was 0.185 mg.kg-1, in pork shoulder 0.141 mg.kg-1, in pork belly 0.22 mg.kg-1 and in sausage on the day of production 0.45 mg.kg-1. On the 30th day, the MDA content was in the sausage 0.78 mg.kg-1. The high MDA content of the sausage was probably most influenced by the technological process, as all raw materials, because there was a lower MDA content.

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