Corrosion and deposit formation on four steels exposed in the syngas section after a biomass gasifier
2016 (English)In: Materials and corrosion - Werkstoffe und Korrosion, ISSN 0947-5117, E-ISSN 1521-4176, Vol. 67, no 9, p. 939-951Article in journal (Refereed) Published
Abstract [en]
In this work, three different stainless steels (304L (CrNi-18-8), 253 MA®(CrNiSi-21-11), Kanthal® A-1 (FeCrAl)) and a reference low-alloyed ferritic steel (16Mo3 (Fe0.3Mo)) were exposed in a commercial biomass gasifier for three periods of 9 min, 580 and 1054 h in the temperature range 350–500 °C. Biomass is a fuel with generally higher amounts of chlorine and lower amounts of sulphur compared to coal and there is a current lack of data on materials performance in such environments. A high level of zinc sulphide was observed on the surfaces of all materials after exposure. It is argued that zinc plays a key role in capturing sulphur in this environment, thus preventing iron from sulphidation. Some incorporation of sulphur in the oxide scale was observed for Fe0.3Mo and CrNi-18-8. CrNiSi-21-11 showed some internal oxidation and pitting was observed for the FeCrAl material. All four materials showed acceptable performance with low total metal loss.
Place, publisher, year, edition, pages
Wiley-VCH Verlag , 2016. Vol. 67, no 9, p. 939-951
Keywords [en]
biomass gasification, high temperature corrosion, stainless steel, Biomass, Corrosion, Ferritic steel, Gasification, Internal oxidation, Scale (deposits), Sulfur, Zinc, Zinc sulfide, Acceptable performance, Biomass gasifier, Deposit formation, High temperature corrosions, Materials performance, Sulphidation, Temperature range
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-41158DOI: 10.1002/maco.201508686Scopus ID: 2-s2.0-84964342118OAI: oai:DiVA.org:ri-41158DiVA, id: diva2:1377379
2019-12-112019-12-112023-06-07Bibliographically approved