Energy Technologies & Resource Saving最新文献

{"title":"A STATE OF ART AND PROSPECTS OF USED PNEUMATIC TIRES MANAGEMENT (REVIEW)","authors":"I. Mikulionok","doi":"10.33070/etars.3.2021.06","DOIUrl":"https://doi.org/10.33070/etars.3.2021.06","url":null,"abstract":"The basic data on the volume of production of pneumatic tires in the world and in Ukraine are presented. The need to improve the ways of handling pneumatic tires that have lost their con-sumer properties (worn out tires as a result of their intended use and tires rejected as a result of passing quality control during their manufacture) is shown as one of the most dangerous for the environment and promising in terms of using their properties. A detailed classification of methods for handling worn out and defective tires is proposed and a critical analysis of each of them is given. Particular attention is paid to the methods of utilization of tires, in particular, recycling, which makes it possible to efficiently use the secondary raw materials obtained from tires directly for their intended purpose. The features of physical, physicochemical and chemical processing methods, in particular combustion, gasification, pyrolysis of tires and their frag-ments, as well as the prospects for their decomposition under the influence of environmental factors, in particular microorganisms, are also considered. The main ways of solving the prob-lem of tires that have lost their consumer properties in Ukraine are proposed. Bibl. 88, Fig. 2.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85632756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ACETOLYSIS OF TECHNICAL OILS AS A BASIS FOR THEIR COMPLEX PROCESSING INTO ALTERNATIVE ONESBIOPRODUCTS OF THE FUEL AND LUBRICANTS INDUSTRY: AN INNOVATIVE METHOD AND TECHNOLOGY","authors":"V. Kyrychenko, V. Kyrychenko, V. Nezdorovin","doi":"10.33070/etars.3.2021.04","DOIUrl":"https://doi.org/10.33070/etars.3.2021.04","url":null,"abstract":"The material of the article reflects the results of the next stage of the systematic study of a very important problem in finding effective methods for processing chemical (T) oils into alternative functionally high quality and high biodegradability bioproducts of the fuel and lubricants (PM) materials. The main object of experimental research is the method of acetolysis of oils as one of the practically unexplored methods in comparison with well-developed methods of alcoholysis and esterolysis of T-oils. Based on the considered mechanism of catalytic and reversible reaction of acetolysis of oils as specific preacylation of their triacetylglycerol molecules, chemical-technological bases of processes of acetolysis of oils of two types are developed, namely: basic – rapeseed (g) and composition on its basis with 20 %, castor oil the so-called \"ripritsol-20\" (years). The optimal technological parameters for achieving high efficiency of acetolysis processes to obtain high-quality intermediates - mixtures of the corresponding FFAs of the general formulas RрC(O)–OH or RррC(O)–OH have been established. The necessity of combining the process of acetolysis of oils (p) or (pp) as the basis of the first stage of processing technology with the next stage, namely the conversion of VJ acids into more active in the reactions of the next stage derivatives - acid chlorides, and by a known, simple and fast method almost quantitative yield of intermediate products - mixtures of HlAn-VZhK (r) or (rr). The conceptual idea of the complex technology indicates the directions of rational processing of mixtures of VZ acids and their anhydrides (mixtures of HlAn-VZhK) into biocomponents of a wide range of purposes. In the second stage of the complex process, it is proposed to process Hlan-IJK mixtures into main bioproducts - biofuels or basic bio-oils by the well-known technologically and perfect Schotten-Bauman method, which is based on the acylation reaction of alcohols of the appropriate structure with chlorides of a certain type. or HlAn-VZhK (pp). Emphasis is placed on the rather favorable course of the acylation reaction of alcohols by the chosen method, in particular on its irreversibility, high speed under standard conditions, under such conditions high technical and economic efficiency of the second stage technology of the complex process is provided. It is shown that the technological operations of the complex process can be modified, directing them to the production of certain bioproducts, such as biofuels or biooils on the basis of adapted selection of the necessary combinations of raw materials. Thus, new biofuels of ester structure are proposed to be obtained by acylation of methanol or ethanol with mixtures of VOR acid chlorides derived from ripol. While new basic biooils of diester structure are recommended to be obtained by acylation of glycolysis of industrial production (in particular ethylene glycol) with a mixture of HlAn-VZhK, derived from the composi","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85955941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INCREASING THE EFFICIENCY OF THE SYSTEMS OF COMPRESSOR-PUMPING AND REFRIGERATION UNITS SUPPLYING LIQUID CO2 AND NH3 TO THE UNIT FOR CARBAMIDE SYNTHESIS","authors":"G. K. Lavrenchenko, B. Hrudka","doi":"10.33070/etars.3.2021.02","DOIUrl":"https://doi.org/10.33070/etars.3.2021.02","url":null,"abstract":"Carbon dioxide is used in large volumes to produce urea, a highly efficient nitrogen fertilizer. It is compressed in a multistage compressor to a pressure of 15 MPa and fed to the urea synthesis unit. The specific energy consumption for the compression of carbon dioxide by a compressor reaches 0.16 kWh/kg. It may be more profitable to use in the system of compressor-pumping and refrigeration units. They can be used to liquefy carbon dioxide and compress it to pressure 15 MPa before feeding it to the synthesis of urea. In the simplest scheme, an ammonia compression refrigeration machine (ACRM) is included in the system to improve efficiency. The specific energy consumption in such a system for the liquefaction and compression of CO2 is 0.118 kWh/kg. In case of replacement of the ACRM with an absorption refrigeration machine, unit costs can be reduced to 0.09 kWh/kg. These two systems can be used to increase urea production or to ensure stable operation of the units during the summer period of their operation. The analysis showed that further improvement of the technological scheme of the entire system will completely abandon the use of the compressor method of compression of CO2 to pressure 15 MPa before its supply to the urea synthesis unit. To do this, you need to include an additional absorption lithium bromide refrigeration machine in the system. In this scheme, the compressor-pumping unit will provide the simultaneous supply of liquid carbon dioxide and ammonia for the synthesis of urea with a pressure of 15 MPa. To increase the daily production of urea from 1400 to 2000 tons, it is necessary to increase the feed liquid CO2 in the amount of 62 t/hour and liquid NH3 — 47.5 t/hour. Bibl. 14, Fig. 3.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89453385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INVESTIGATION OF THE PROCESSES OF THERMAL DESTRUCTION OF CELLULOSE-CONTAINING (PAPER) WASTE","authors":"O. Sezonenko, O. Vasechko, V. Aleksyeyenko, A. V. Snihur","doi":"10.33070/etars.3.2021.05","DOIUrl":"https://doi.org/10.33070/etars.3.2021.05","url":null,"abstract":"Materials of practical research work on thermal destruction of paper waste were presented. The main task was The comprehensive study of the aspects of carbon formation on the basis of analytical studies was considered, as well as using a specially built laboratory installation — a waste graphitizer. Research has been carried out on the effectivity of application of pyrolysis gases of the process as fuel to maintain the temperatures of the thermal destruction reaction. Practical examples have proved the possibility and expediency of using the solid residue of the reaction as a component in various fields of production. Bibl. 10, Fig. 1, Tab. 3.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"123 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80187669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TECHNOLOGICAL COMPLEX FOR PROCESSING OF SOLID HOUSEHOLD AND TREATMENT FACILITIES WASTE WITH BIOGAS OBTAINING","authors":"O. Seryogin, O. Vasylenko, F. Riedel, H. Aigner","doi":"10.33070/etars.2.2021.06","DOIUrl":"https://doi.org/10.33070/etars.2.2021.06","url":null,"abstract":"A concept has been developed for processing of biologically active sludge from municipal wastewater treatment plants in combination with the organic fraction of municipal solid waste using the BioTech Process. The complex, which makes it possible to implement the proposed concept, does not require additional land plots, and classified secondary raw materials, biogas and high-quality biofertilizers suitable for use in the agricultural industry are the products of its activity. The proposed concept will allow solving several problems at once due to the construction of a waste recycling plant on the territory of the filtration zone of the existing water treatment facilities. The new processing plant will be used not only for processing and sorting of solid waste, but also for treating sludge from wastewater treatment plants, together with organic waste obtained from solid waste in the BioTech Process to obtain biogas and biofertilizers, the so-called compost. The new recycling plant will be environmentally friendly and, among other benefits, will be able to process of municipal solid waste with preliminary sorting and separation of recyclable materials. Bibl. 9, Fig. 1.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"192 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72823043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DEVELOPMENT OF CONCEPTUAL TECHNICAL SOLUTIONS AND METHODS OF THEIR IMPLEMENTATION DURING THE DESIGN OF A DUST COAL STEAM GENERATOR OF SUPER-SUPER CRITICAL PARAMETERS OF STEAM 28 MPA / 600 °C/600 °C FOR 300 MW ENERGY UNIT. PART 3.","authors":"B. Rokhman, N. Dunayevska, V. Vifatnyuk","doi":"10.33070/etars.2.2021.01","DOIUrl":"https://doi.org/10.33070/etars.2.2021.01","url":null,"abstract":"In the third part of this article, an attempt is made to expand the range of regulation of the steam generator load from 40% to 100% by injecting recirculating flue gases taken after the water economizer into the middle radiation part of the furnace. For this, verification thermal calculations of the boiler were carried out when burning ДГ-100 coal in a wide range of variation of the recirculation coefficient Krec = 10−20% at loads of 40% and 50% of the nominal. It is shown that: a) at a load of 50%, recirculation of flue gases Krec = 13 % leads to a drop in the steam temperature along the primary path, due to which the maximum wall temperatures of all-welded screens decrease, which makes it possible to reduce the cost of boiler manufacture by reducing the use of expensive austenitic steels by 116.3 t; b) to ensure a live steam temperature of 600 °С at a load of 40%, it is necessary that Krec = 12%. This leads to a rise in the cost of the boiler in comparison with the load of 50% due to the use of steel grade 10X16N16V2MBR in the manufacture of ceiling screens. Bibl. 3, Fig. 17, Tab. 4.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"15 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91474507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE CURRENT STATE OF THE ISSUE OF PERSISTENT ORGANIC POLLUTANTS IN UKRAINE AND APPROACHES FOR ITS RESOLUTION","authors":"V. Chetverykov, I. Holoubek, K. Pianykh","doi":"10.33070/etars.2.2021.07","DOIUrl":"https://doi.org/10.33070/etars.2.2021.07","url":null,"abstract":"Persistent organic pollutants (POPs) relate to a group of toxicants, which is separated due to an extremely hazardous impact on human health and is regulated by a special international agreement — the Stockholm Convention on POPs. Each Party of the Convention should develop and consistently renew the National Implementation Plan to implement requirements under this Convention. Ukraine developed the National Implementation Plan in 2007, and the experts started works on its renewal in 2020. The article contains results of expert analysis of changes in volumes and forms of accumulation of waste, consisting of containing or contaminated with POPs, in particular, unusable and prohibited plant protection chemicals (PPC). There are outcomes of expert analysis of changes in use of electrical equipment that contained synthetic dielectric liquids based on polychlorinated biphenyls (PCBs). Based on analysis, activities are proposed to the National Implementation Plan for development of effective infrastructure for thermal destruction of POP-containing waste. In addition to storage sites of POPs-containing waste, so-called “nintentional production” is an essential source of POPs entering environment. For categories of sources that under the Stockholm Convention can potentially polluted environment with POPs volumes of annual emission into the air, water, and soil for six basic pollutants have been calculated. Modern extensive monitoring system for POPs should be established to clear up a real state with environmental pollution by POPs in the country. Results of such monitoring together with strong regulatory support may motivate enterprises to an introduction of “best available techniques”. Bibl. 7, Tab. 3.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84036791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GEOINFORMATION ASPECTS OF DISTRICT HEATING MODERNIZATION","authors":"Y. Nikitin, I.S. Komkov","doi":"10.33070/etars.2.2021.04","DOIUrl":"https://doi.org/10.33070/etars.2.2021.04","url":null,"abstract":"The article considers the tools and methods of analysis cities district heating modernization, using modern geographic information systems. The characteristics of district heating and the issues that arise given the need for their modernization are listed. Geographic information systems briefly divided into types in terms of their application to the tasks. The most promising areas of further research in the direction of integration of geographic information systems in the field of district heating are identified. Bibl. 11, Fig. 4, Table 1.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74244133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CRYOGENIC ACCUMULATION OF ELECTRICITY GENERATED USING RENEWABLE ENERGY SOURCES","authors":"V. Braverman, B. Ilienko","doi":"10.33070/etars.2.2021.02","DOIUrl":"https://doi.org/10.33070/etars.2.2021.02","url":null,"abstract":"Possibilities and prospects of accumulation of the electric power generated on objects of renewable energy sources - solar and wind power plants, with use of cryogenic liquids are considered. A comparison of the three most common ways of accumulating electricity: using lithium-ion batteries, hydrogen, liquid air. According to the proposed technology, the efficiency of recovery of electricity from liquid air is from 54 to 70%. The developed technology is based on cryogenic and thermal accumulation and has a high accumulation coefficient. It is shown that energy storage in cryogenic storage devices is the cheapest today. The proposed technology can also be used to generate electricity from liquefied natural gas using standard equipment developed by industry. The technological scheme of the cryoaccumulating station is offered. Bibl. 10, Fig. 1, Table 1.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87807131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A STATE OF ART AND PROSPECTS OF PLASTIC SOLID WASTE MANAGEMENT","authors":"I. Mikulionok","doi":"10.33070/etars.2.2021.05","DOIUrl":"https://doi.org/10.33070/etars.2.2021.05","url":null,"abstract":"Basic data on the volume and structure of solid waste in the world and Ukraine are presented. The need to improve the ways of handling plastic solid waste as one of the most dangerous for the environment and promising from the point of view of using their properties is shown. A detailed classification of methods for handling plastic solid waste is proposed and a critical analysis of each of them is given. Particular attention is paid to the methods of disposal of plastic solid waste, in particular, recycling, which makes it possible to effectively use secondary plastic raw materials directly for their intended purpose. The features of physical, chemical, biological and combined processing methods are also considered, in particular combustion, gasification, pyrolysis, plasma decomposition of plastic solid waste, as well as their decomposition under the influence of sunlight and microorganisms. The main ways of solving the problem of plastic solid waste in Ukraine are proposed. Bibl. 83, Fig. 3, Tab. 3.","PeriodicalId":11558,"journal":{"name":"Energy Technologies & Resource Saving","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80685316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}