REDUCTION OF NITROGEN OXIDES EMISSIONS FROM A COAL-FIRED BOILER UNIT

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: Conference on Thermophysical Basis of Energy Technologies; Tomsk, RUSSIA; Tomsk, RUSSIA

Год издания: 2016

Идентификатор DOI: 10.1051/epjconf/201611001050

Аннотация: During combustion of fossil fuels a large amount of harmful substances are discharged into the atmospheres of cities by industrial heating boiler houses. The most harmful substances among them are nitrogen oxides. The paper presents one of the most effective technological solutions for suppressing nitrogen oxides; it is arrangement of circulation process with additional mounting of the nozzle directed into the bottom of the ash hopper. When brown high-moisture coals are burnt in the medium power boilers, generally fuel nitrogen oxides are produced. It is possible to reduce their production by two ways: lowering the temperature in the core of the torch or decreasing the excess-air factor in the boiler furnace. Proposed solution includes the arrangement of burning process with additional nozzle installed in the lower part of the ash hopper. Air supply from these nozzles creates vortex involving large unburned fuel particles in multiple circulations. Thereby time of their staying in the combustion zone is prolonging. The findings describe the results of the proposed solution; and recommendations for the use of this technological method are given for other boilers.

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Издание

Журнал: THERMOPHYSICAL BASIS OF ENERGY TECHNOLOGIES 2015

Выпуск журнала: Vol. 110

ISSN журнала: 2100014X

Место издания: CEDEX A

Издатель: E D P SCIENCES

Авторы

  • Zhuikov Andrey V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Feoktistov Dmitry V. (Natl Res Tomsk Polytech Univ, Tomsk 634050, Russia; Russian Acad Sci, SS Kutateladze Inst Thermal Phys, Siberian Branch, Novosibirsk 630090, Russia)
  • Koshurnikova Natalya N. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Zlenko Lyudmila V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)

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