Industrial environmental control and technical regulations for cancer-causing emissions from thermal power plants

2021 ◽  
Vol 6 ◽  
pp. 5-10
Author(s):  
Maxim Ivanitskiy

Current environmental safety rules and regulations require power companies to apply for comprehensive environmental permits calculating permissible emissions of cancer-causing and mutagenic substances for each source of pollution. Difficulties of instrument testing and monitoring of cancer-causing emissions prevent industrial companies from adequate regulatory limit applications. The author of this paper proposes research results on gas duct sizing for boiler plants in order to allow engineers performing correct instrument testing for compliance with the requirements of comprehensive environmental permits.

2021 ◽  
Vol 81 (1) ◽  
pp. 111-116
Author(s):  
A. Plevako ◽  

Main problem: Ensuring environmental safety of thermal power plants by reducing emissions of harmful substances, in particular nitrogen oxides. When all types of fossil fuel, including solid fuel, are burned, nitrogen oxides are formed in the boilers of TPPs. The sources of their formation are air nitrogen and nitrogen- containing components of the organic matter of the fuel. As you know, they adversely affect the health of humans, plants and animals. Therefore, it became necessary to consider and analyze methods to reduce these emissions. Purpose: To review and analyze various ways to reduce nitrogen oxide emissions and propose a new scheme for reducing these emissions by recirculating flue gases. Methods: This is achieved due to the fact that in the known method for purifying the flue gases of steam generators from nitrogen oxides by lowering the temperature in the furnace of the steam generator by supplying flue gases with a temperature below the temperature in the furnace of the steam generator, it is proposed that the flue gases be fed into the furnace of the steam generator after ash cleaning. At the same time, as a result of the supply of recirculated gas cooled after filtering and passing through the main smoke exhauster into the combustion chamber, having a temperature of 110-170 °C, in comparison with the initial version, a greater decrease in temperature in the furnace of the steam generator occurs, which in turn leads to a decrease in the flue gases of oxides nitrogen, since the chemical reaction of their formation goes with the absorption of heat. Results and their importance: The technical result at the proposed method of cleaning from nitrogen oxides is to reduce the consumption of electricity by eliminating the collateral wear of the recirculation gas duct, due to the cleaning of time gases from ash (a requirement of the rules of technical operation of PTE).


2019 ◽  
Vol 11 (4) ◽  
pp. 274-279
Author(s):  
S. A. Kropachev

The history is presented of creation and activities of Teploelectroproekt JSC (formerly, Teploelectroproekt Institute), a flagship company in Russian design of thermal and nuclear power facilities. Results are considered of the Institute’s activities in severe conditions of the Civil War and foreign military intervention, in times of peace and during the Great Patriotic War, at the post-war years of restoration of industrial facilities, during the reform of Russia’s power sector after the breakdown of the USSR. The contribution of distinguished scientists and engineers in formation and development of the Institute over its 100-year long history is described. The Institute’s achievements are presented in both the creation of modern infrastructure of Russia’s power industry, and in construction of power plants abroad (in China, Iraq, India and other countries). The quality of design solutions largely depended on the level of technical equipment of designers. TEP acted as the driving force and head organization of the industry in introduction of information technologies in design. For many years, the Institute has been a talent pool for power industry executives. Among those who started their professional life there are I. I. Ugorets (USSR deputy power plant minister), Ya. I. Finogenov (USSR first deputy minister for power industry and electrification), A. A. Troitskiy (USSR Energy Ministry and USSR State Planning Committee), S. P. Goncharov (USSR Energy Ministry), to name just a few. Due to its great experience and united team, the Institute could maintain its leading positions in the design of construction of thermal power plants. The Institute is actively engaged in working on creating projects of state-of-art highperformance thermal power plants operating on organic fuels with steam-turbine, steam-gas and gas-turbine units. The Institute creates advanced innovative projects meeting the most stringent demands of customers, in accordance with industrual and environmental safety requirements.


2019 ◽  
Vol 12 (1) ◽  
pp. 22-28
Author(s):  
V. Ye. Mikhailov ◽  
S. P. Kolpakov ◽  
L. A. Khomenok ◽  
N. S. Shestakov

One of the most important issues for modern domestic power industry is the creation and further widespread introduction of solid propellant energy units for super-critical steam parameters with high efficiency (43–46%) and improved environmental parameters. This will significantly reduce the use of natural gas.At the same time, one of the major drawbacks of the operation of pulverized coal power units is the need to use a significant amount of fuel oil during start-up and shutdown of boilers to stabilize the burning of the coal torch in the variable boiler operating modes.In this regard, solid fuel TPPs need to be provided with fuel oil facilities, with all the associated problems to ensure the performance (heating of fuel oil in winter), reliability and safety. All of the above problems increase both the TPP capital construction costs, and the electricity generating cost.A practical solution to the above problems at present is the use of a plasma technology for coal torch ignition based on thermochemical preparation of fuel for combustion. The materials of the developments of JSC “NPO CKTI” on application of plasmatrons in boilers of thermal power plants at metallurgical complexes of the Russian Federation are also considered.Plasma ignition systems for solid fuels in boilers were developed by Russian specialists and were introduced at a number of coal-fi red power plants in the Russian Federation, Mongolia, North Korea, and Kazakhstan. Plasma ignition of solid fuels is widely used in China for almost 30% of power boilers.The introduction of plasma-energy technologies will improve the energy efficiency of domestic solid-fuel thermal power plants and can be widely implemented in the modernization of boilers.During the construction of new TPPs, the construction of fuel oil facilities can be abandoned altogether, which will reduce the capital costs of the construction of thermal power plants, reduce the construction footprint, and increase the TPP safety.


Sign in / Sign up

Export Citation Format

Share Document