Investigation of fly ash from co-combustion of alternative fuel (SRF) with hard coal in a stoker boiler

Wasielewski, Ryszard; Wojtaszek, Małgorzata; Plis, Agnieszka

doi:10.24425/aep.2020.133475

Artykuł - szczegóły

Tytuł artykułu

Investigation of fly ash from co-combustion of alternative fuel (SRF) with hard coal in a stoker boiler

Autorzy

Wasielewski Ryszard , Wojtaszek Małgorzata , Plis Agnieszka

Treść / Zawartość

Pełne teksty:

Wasielewski_R_Investigation_aep_2_2020.pdf

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Identyfikatory

DOI

10.24425/aep.2020.133475

Warianty tytułu

Języki publikacji

Abstrakty

Results of fly ashes from combustion of hard coal and co-combustion of alternative fuel (SRF) with coal in the stoker boiler WR-25 type studies have been shown. Samples of fly ashes were acquired during industrial combustion tests of hard coal and blend of coal with 10% SRF. The scope of comparative research included: chemical composition, contents of combustible parts and trace elements and also of microscopic analysis. The specific surface area SBET was established and tests of water extract were conducted. Chemical composition of mineral substance of both studied ashes is similar. Main ingredients are: SiO₂, Al₂O₃, Fe₂O₃ and CaO. Fly ash from co-combustion of SRF with coal in a stoker boiler is characterized by high contents of combustible parts (on 30% level), higher than ash from hard coal combustion. Both tested ashes are characterized by specific surface area SBET on the level of 8–9 m²/g. In porous structure mesopores are dominant (>60%), and their volume is higher for fly ash from co-combustion of SRF with coal. Fly ash from co-combustion of waste is characterized by high contents of heavy metals. Nevertheless these metals and also other pollutants do not show leachability exceeding acceptable values for wastes different than hazardous. The microscopic structure of fly ashes from combustion of hard coal and co-combustion of alternative fuel studies showed crucial differences, especially in reference to organic material. Presented research results have shown that fly ash from co-combustion of SRF with coal in a stoker boiler can obtain the status of non-hazardous waste.

Słowa kluczowe

fly ash co-combustion of waste with hard coal alternative fuel SRF stoker boiler

Wydawca

Institute of Environmental Engineering, Polish Academy of Sciences

Czasopismo

Archives of Environmental Protection

Rocznik

2020

Tom

Vol. 46, no. 2

Strony

58--67

Opis fizyczny

Bibliogr. 70 poz., rys., tab.

Twórcy

autor

Wasielewski Ryszard

rwasielewski@ichpw.pl

Institute for Chemical Processing of Coal, Poland

autor

Wojtaszek Małgorzata

Institute for Chemical Processing of Coal, Poland

autor

Plis Agnieszka

Institute for Chemical Processing of Coal, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-653309f9-e5f8-42d6-a077-11e945b1707d