On the issue of waste-free combustion of ekibastuz coal and utilization of carbon dioxide in waste gases

• Autorzy: Dikhanbaev Bayandy I. , Rusowicz Artur , Dikhanbaev Arystan B. , Sultan Ibray

Warianty tytułu

PL

Bezodpadowe spalania węgla ekibastuz i utylizacja dwutlenku węgla w gazach odlotowych

• Języki publikacji: EN

Abstrakty

EN

The production activity of mankind using high-ash fossil fuels for electricity generation is steadily increasing ash waste and carbon dioxide emissions into the environment. The article proposes a variant of wasteless combustion of Ekibastuz coal in a melting reactor installed under the boiler; it is envisaged to obtain, in addition to steam of energy parameters, a melt suitable for the production of building materials, sublimates of zinc, gallium and germanium, to reduce emissions of CO2 into the atmosphere and return to the process a part of carbon in CO2. An energy-saving thermal diagram of a power plant boiler has been developed on the basis of the proposed technology for the reduction of СО2, Н2О of reactor waste gases with zinc vapor to СО, Н2. The resulting excessive hydrogen will be used to displace elemental carbon from CO. The spent reagent, zinc oxide, after recovering into zinc will be used again in the process. In case of implementation, CO2 emissions into the atmosphere will be cut up to 50%, the expected payback period of the proposed system will be 1.0 - 1.5 years.

PL

Działalność produkcyjna ludzkości wykorzystująca wysokopopiołowe paliwa kopalne do produkcji energii elektrycznej stale zwiększa ilość odpadów popiołowych i emisję dwutlenku węgla do środowiska. W artykule zaproponowano wariant bezodpadowego spalania węgla Ekibastuz w reaktorze zainstalowanym pod kotłem; przewiduje się uzyskanie, oprócz pary o parametrach energetycznych, stopu odpowiedniego do produkcji materiałów budowlanych, sublimatów cynku, galu i germanu, a w celu zmniejszenia emisji CO2 do atmosfery i powrotu do procesu części węgla zawartego w CO2. Na podstawie zaproponowanej technologii redukcji СО2 i Н2О w gazach odlotowych z reaktora z parą cynku do СО i Н2 opracowany został energooszczędny schemat cieplny kotła w elektrowni. Powstała nadmierna ilość wodoru zostanie wykorzystana do wyparcia węgla pierwiastkowego z CO. Zużyty reagent, tlenek cynku, po odzyskaniu cynku zostanie ponownie wykorzystany w procesie. W przypadku wdrożenia, emisja CO2 do atmosfery zostanie zmniejszona do 50%, oczekiwany okres zwrotu z proponowanego systemu będzie wynosić 1,0 - 1,5 roku.

Słowa kluczowe

EN

carbon dioxide; reactor inversion phase; zinc distillation; ash wastes; germanium; gallium sublimates

PL

dwutlenek węgla; faza inwersji reaktora; destylacja cynku; popiół; german; sublimaty galu

• Wydawca: KAPRINT
• Czasopismo: Rynek Energii
• Rocznik: 2020
• Tom: Nr 6
• Strony: 71--76
• Opis fizyczny: Bibliogr. 24 poz., fig.

Twórcy

autor

Dikhanbaev Bayandy I.

• Department of Thermal Power Engineering, S. Seifullin Kazakh Agro Technical University, Nur-Sultan, Kazakhstan

autor

Rusowicz Artur

• Warsaw University of Technology, Power and Aeronautical Engineering Faculty, Institute of Heat Engineering

autor

Dikhanbaev Arystan B.

• Department of Heat Power Engineering, University of Energy and Communications, Almaty, Kazakhstan

autor

Sultan Ibray

• Energy Department, S. Seifullin Kazakh Agrotechnical University, Astana, Republic of Kasakhstan

Bibliografia

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