Graphoanalytical study on the economic effect of incorporating hydrocracking of the distillate feedstock in oil refineries of the fuel profile

1972 ◽  
Vol 8 (1) ◽  
pp. 38-42
Author(s):  
L. I. Erkina ◽  
Yu. I. Chernyi
Keyword(s):  
Economic Effect ◽  
Oil Refineries ◽  
Distillate Feedstock ◽  
Fuel Profile

scholarly journals Waste management system for petrochemical industries

2021 ◽  
Vol 244 ◽  
pp. 01005
Author(s):  
Alelexei Bormotov ◽  
Ekaterina Kolobova
Keyword(s):  
Waste Management ◽  
Natural Environment ◽  
Management System ◽  
Economic Effect ◽  
Production Waste ◽  
Oil Refining ◽  
Petrochemical Production ◽  
Oil Refineries ◽  
Waste Management System ◽  
The Impact

An oil refinery and the surrounding natural environment are pre-sented as complex technical systems, as objects of research and modeling. The principles and methods of systems analysis, the theory of mathematical modeling and mathematical statistics, and correlation-regression analysis were used for this. Methodological principles of modeling the interaction of petrochemical production waste with the environment are proposed. On the basis of the proposed principles, a hierarchy of criteria and a systematic analysis of the system “petrochemical production - natural environment” are carried out. As the coordinates of modeling and control, it is proposed to take a set of indicators of the ecological state of an object in the vector space of ecological perfection, which sets all of its ecological, technical and economic properties in a single range of values. The system «petrochemical production - natural environment» is presented as a structural and logical model of a waste management system, showing the properties of synergy and emergence. Proposed methodological approaches and mathematical models of the system «petrochemical production - wastes from oil refineries - natural environment» allow to correctly assess technological risks, the ef-fectiveness of the waste management system at petrochemical enterprises, the impact of unforeseen situations and accidents, the impact on the envi-ronment of waste from petrochemical enterprises, as well as the environ-mental and economic effect of the introduction of new technologies for oil refining and disposal of production waste.

An experience of elaboration and implementation of systems of slag-forming mixtures mechanized feeding into CCM moulds

2020 ◽  
Vol 76 (10) ◽  
pp. 994-1003
Author(s):  
S. P. Eron’ko ◽  
M. Yu. Tkachev ◽  
E. V. Oshovskaya ◽  
B. I. Starodubtsev ◽  
S. V. Mechik
Keyword(s):  
Economic Effect ◽  
Three Dimensional ◽  
Movable Part ◽  
High Quality ◽  
Working Zone ◽  
Fine Material ◽  
Mixing Chamber ◽  
Field Samples ◽  
Technical Solutions ◽  
Feeding Systems

Effective application of slag-forming mixtures (SFM), being fed into continuous castingg machine (CCM) moulds, depends on their even distribution on the melt surface. Manual feeding of the SFM which is widely usedd does not provide this condition, resulting in the necessity to actualize the work to elaborate systems of SFM mechanized feedingg into moulds of various types CCM. A concept of the designing of a system of SFM feeding into CCM moulds presented with the ratte strictly correspondent to the casting speed and providing formation of an even layer of fine material of given thickness on the whoole surface of liquid steel. The proposed methods of designing of the SFM mechanized feeding systems based on three-dimensional computer simulation with the subsequent verification of the correctness of the adopted technical solutions on field samples. Informattion is presented on the design features of the adjusted facilities intended for continuous supply of finely granulated and powder mixtuures on metal mirror in moulds at the production of high-quality billets, blooms and slabs. Variants of mechanical and pneumo-mechaanical SFM supply elaborated. At the mechanical supply the fine material from the feeding hopper is moved at a adjusted distance bby a rigid horizontally located screw. At the pneumo-mechanical supply the metered doze of the granular mixture is delivered by a sshort vertical screw, the lower part of which is located in the mixing chamber attached from below to the hopper and equipped with ann ejector serving for pneumatic supply of the SFM in a stream of transporting gas. It was proposed to use flexible spiral screws in the ffuture facilities of mechanical SFM feeding. It will enable to eliminate the restrictions stipulated by the lack of free surface for locatiion of the facility in the working zone of the tundish, as well as to decrease significantly the mass of its movable part and to decreaase the necessary power of the carriage moving mechanism driver. The novelty of the proposed technical solutions is protected by thhree patents. The reduction of 10–15% in the consumption of slag-forming mixtures during the transition from manual to mechanizeed feeding confirmed. The resulting economic effect from the implementation of technical development enables to recoup the costs inncurred within 8–10 months.

New algorithms and formulas for calculation the volume of a ball and its surface area for the development of students' creative thinking and practical application

2020 ◽  
pp. 32-41
Author(s):  
V. P. Zudin
Keyword(s):  
Surface Area ◽  
Creative Thinking ◽  
Economic Effect ◽  
Educational Institutions ◽  
Practical Application ◽  
Microsoft Word ◽  
Ball Surface ◽  
Visual Basic For Application ◽  
Application Programs ◽  
Development Of Students

The article presents new, more accurate algorithms and formulas for calculating the area of a circle, volume of a ball, surface area of a ball. To prove these algorithms and formulas and their practical application, programs have been developed in the Visual Basic for Application in Microsoft Word. These algorithms and formulas should be studied and applied in all educational institutions, as they are closer to the truth. From a more accurate calculation using these formulas, you can get an economic effect when calculating trajectories of movements in space, on the surface of the globe, in the construction and maintenance of products in the form of a circle or a ball. The study of this material in informatics lessons contributes to the development of students' creative thinking, increasing their motivation to study informatics and IT.

79. Comparison of Benzene-Specific Field Measurements at Oil Refineries

1999 ◽  
Author(s):  
W.R. Haag ◽  
P. Owens ◽  
D. Mayszak ◽  
J. Katona ◽  
B. Mangilin ◽  
...  
Keyword(s):  
Field Measurements ◽  
Oil Refineries ◽  
Specific Field

Evaluation of System Effectiveness of Multifunctional Hydrogen Complex at Nuclear Power Plants

2019 ◽  
pp. 24-39
Author(s):  
R. Z. Aminov ◽  
A. N. Bayramov ◽  
M. V. Garievskii
Keyword(s):  
Cyclic Loading ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Frequency Control ◽  
Economic Effect ◽  
Current Frequency ◽  
Main Equipment ◽  
Primary Frequency ◽  
Primary Frequency Control

The paper gives the analysis of the problem of the primary current frequency regulation in the power system, as well as the basic requirements for NPP power units under the conditions of involvement in the primary regulation. According to these requirements, the operation of NPPs is associated with unloading and a corresponding decrease in efficiency. In this regard, the combination of nuclear power plants with a hydrogen complex is shown to eliminate the inefficient discharge mode which allows the steam turbine equipment and equipment of the reactor facility to operate in the basic mode at the nominal power level. In addition, conditions are created for the generation and accumulation of hydrogen and oxygen during the day, as well as additionally during the nighttime failure of the electrical load which allows them to be used to generate peak power.  The purpose of the article is to assess the systemic economic effect as a result of the participation of nuclear power plants in combination with the hydrogen complex in the primary control of the current frequency in the power sys-tem, taking into account the resource costs of the main equipment. In this regard, the paper gives the justification of cyclic loading of the main equipment of the hydrogen complex: metal storage tanks of hydrogen and oxygen, compressor units, hydrogen-oxygen combustion chamber of vapor-hydrogen overheating of the working fluid in the steam turbine cycle of a nuclear power plant. The methodological foundations for evaluating the working life of equipment under cyclic loading with the participation in the primary frequency control by the criterion of the growth rate of a fatigue crack are described. For the equipment of the hydrogen complex, the highest intensity of loading is shown to occur in the hydrogen-oxygen combustion chamber due to high thermal stresses.  The system economic effect is estimated and the effect of wear of the main equipment under cyclic loading is shown. Under the conditions of combining NPP power units with a hydrogen complex, the efficiency of primary reg-ulation is shown to depend significantly on: the cost of equipment subjected to cyclic loading; frequency and intensity of cyclic loading; the ratio of the tariff for peak electricity, and the cost of electricity of nuclear power plants.  Based on the developed methodology for assessing the effectiveness of the participation of nuclear power plants with a hydrogen complex in the primary frequency control, taking into account the damage to the equipment, the use of the hydrogen complex is shown to provide a tangible economic effect compared with the option of unloading nuclear power plants with direct participation in frequency control.

A Study on Economic Effect According to the Design Life of a Bridge

2015 ◽  
Vol 105 (37) ◽  
pp. 1-8
Author(s):  
Yongjoo Jung ◽  
Chungyoung Cho ◽  
Hongsik Kim ◽  
Dongjin Lee ◽  
Heungbae Gil ◽  
...  
Keyword(s):  
Economic Effect ◽  
Design Life

Economic effect of the application of three-component schemes with iksasomib or carfilsomib for therapy of multiple myeloma in adult patients

2018 ◽  
Vol 6 (4) ◽  
pp. 10-18
Author(s):  
D.L. Klabukova ◽  
V.S. Krysanov ◽  
K.I. Polyakova ◽  
T.N. Ermolaeva ◽  
M.V. Davydovskaya ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Economic Effect ◽  
Adult Patients

ECONOMIC PERSPECTIVES OF BIOTECHNOLOGIES USING IN ANIMAL FARMING

1970 ◽  
pp. 57-60
Author(s):  
I. F. Gorlov ◽  
A. A. Mosolov ◽  
G. V. Komlatskiy ◽  
M. A. Nesterenko ◽  
K. D. Nimbona ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Economic Effect ◽  
Dairy Herd ◽  
State Level ◽  
Modern Level ◽  
Economic Perspectives ◽  
The Cost ◽  
Short Time

The article presents materials on the study of the possibility of reproduction and increase in the herd of highly productive cows through the use of embryo transplantation technology. The classical (in vivo) and more modern, developing (in vitro) methods of embryotransfer, their positive and negative sides are considered in detail. The possibility of accelerating the breeding process by using the method of transplantation, in which from one cow can be obtained from 10 to 100 calves, which will allow for 4-5 years, almost any herd (of any size and breed) with the help of biotechnology to turn into a cattle-breeding enterprise of the most modern level. At the same time, heifers obtained from unproductive cows can be used as "surrogate" mothers who are transplanted with the best donor embryos, which allows to obtain a full-fledged offspring adapted to local environmental conditions. A detailed scheme of obtaining, evaluation, storage, as well as the cost and economic effect of embryo transplantation was calculated, the market was evaluated, the required annual volume of transplants and the number of donor cows for large livestock farms were determined. As a positive example of "Scientific-production enterprise "Centre of biotechnology and embryo transfer" in 2014, implemented a project for accelerated replacement and genetic improvement of the dairy herd, engraftment averaged 57-69%, and the economic effect of the enterprise from getting a single animal by the method of embryo transfer, compared with imports of similar close in quality, ranged from 60 to 100 thousand rubles on his head. It is shown that it is necessary to organize at the state level a developed service for embryo transplantation to reduce the cost of embryo transfer and the possibility of creating in a short time in the country's own highly productive breeding nucleus of dairy and beef cattle, which will reduce, and in the future completely eliminate, import dependence on cattle products.

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