Szczegóły publikacji
Opis bibliograficzny
The influence of potassium-rich biomass ashes on steel corrosion above 550°C / Agata MLONKA-MĘDRALA, Aneta MAGDZIARZ, Izabela KALEMBA-REC, Wojciech NOWAK // Energy Conversion and Management ; ISSN 0196-8904. — 2019 — vol. 187, s. 15–28. — Bibliogr. s. 26–28, Abstr. — CPOTE 2018 : Gliwice, Poland, 18th–21st September 2018
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 120735 |
|---|---|
| Data dodania do BaDAP | 2019-04-04 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.enconman.2019.02.074 |
| Rok publikacji | 2019 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Energy Conversion and Management |
Abstract
The slagging, fouling and high temperature corrosion are major problems in biomass-firing units and lead to heat transfer limitation, bed agglomeration and metal surface degradation. This paper reports the results of the laboratory-scale corrosion studies of selected steel grades (16Mo3, 10CrMo9–10, X10CrMoVNb9–1, X7CrNiNb18–10) under biomass ash deposits. Five biomass ashes (3 agricultural biomass and 2 energy crops) were used for corrosion tests. Selected samples were doped with 0.1 and 0.5% wt. of KCl to simulate salt condensation process occurring in a real boiler. The corrosion experiments were carried out under oxidizing conditions, at 560 °C and 610 °C for 168 h. To determine the corrosion rate the mass of steel samples were measured after 24, 72 and 168 h. The corrosion products were analysed using SEM-EDS technique. The results showed that oxide scale formation rate determines the overall corrosion mechanism and the influence of ash deposits on steel. For low-chromium steels the oxidation rate is significant and a scale is a protective barrier between the deposit and metal surface limiting further oxidation process. The highest influence of ash on corrosion process was observed for high-chromium steels. However, high-chromium steels show the highest corrosion resistance. © 2019 Elsevier Ltd
