The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content

Szymon Sroda, Martti Mäkipää

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

1 Citation (Scopus)

Abstract

In the present study the common ferritic and austenitic steels (2.25Cr1Mo, X10, X20, TP347H, AC66, Sanicro28, Esshete 1250) usually used in biomass and waste combustion processes were investigated. The multi-sample exposure tests were carried out at isothermal temperature of 535 C in various simulated combustion atmospheres (22%H2O+ 5%O2 +xCO2 + N2) with different CO2 content varying from 0 to 25 vol-% for the samples without deposit and with filter/cyclone ash deposition. Post experimental analyses have been made using SEM/EDS and XRD techniques. The presence of the deposit increases the corrosion rate of all studied materials, especially for the ferritic steels. The corrosion rate increases with increasing CO2 content in the atmosphere. That behaviour was observed on no-deposited and deposited samples. The obtained result shows that for the ferritic steel the corrosion resistance increases with increasing Cr content in steel but only for non-deposited samples. The ferritic steels with deposits behave different. There is only a small difference on the corrosion rate of X10 (8.5 m-% Cr) and X20 (12.7 m-% Cr), even in some cases X10 exhibits better corrosion resistance. This effect could be especially observed in the atmospheres with high CO2 content.
Original languageEnglish
Title of host publicationBALTICA VI - Life management and maintenance for power plants. Vol. 2
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages553-565
ISBN (Electronic)951-38-6294-1
ISBN (Print)951-38-6293-3
Publication statusPublished - 2004
MoE publication typeB3 Non-refereed article in conference proceedings
EventBALTICA VI - Life Management and Maintenance for Power Plants - Helsinki-Stockholm, Finland
Duration: 8 Jun 200410 Jun 2004

Publication series

NameVTT Symposium
PublisherVTT
Number234
ISSN (Print)0357-9387
ISSN (Electronic)1455-0873

Conference

ConferenceBALTICA VI - Life Management and Maintenance for Power Plants
CountryFinland
CityHelsinki-Stockholm
Period8/06/0410/06/04

Fingerprint

Ferritic steel
Boilers
Corrosion resistance
Corrosion rate
Deposits
Steel
Ashes
Austenitic steel
Energy dispersive spectroscopy
Biomass
Scanning electron microscopy
Temperature

Cite this

Sroda, S., & Mäkipää, M. (2004). The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content. In BALTICA VI - Life management and maintenance for power plants. Vol. 2 (pp. 553-565). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 234
Sroda, Szymon ; Mäkipää, Martti. / The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content. BALTICA VI - Life management and maintenance for power plants. Vol. 2. Espoo : VTT Technical Research Centre of Finland, 2004. pp. 553-565 (VTT Symposium; No. 234).
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abstract = "In the present study the common ferritic and austenitic steels (2.25Cr1Mo, X10, X20, TP347H, AC66, Sanicro28, Esshete 1250) usually used in biomass and waste combustion processes were investigated. The multi-sample exposure tests were carried out at isothermal temperature of 535 C in various simulated combustion atmospheres (22{\%}H2O+ 5{\%}O2 +xCO2 + N2) with different CO2 content varying from 0 to 25 vol-{\%} for the samples without deposit and with filter/cyclone ash deposition. Post experimental analyses have been made using SEM/EDS and XRD techniques. The presence of the deposit increases the corrosion rate of all studied materials, especially for the ferritic steels. The corrosion rate increases with increasing CO2 content in the atmosphere. That behaviour was observed on no-deposited and deposited samples. The obtained result shows that for the ferritic steel the corrosion resistance increases with increasing Cr content in steel but only for non-deposited samples. The ferritic steels with deposits behave different. There is only a small difference on the corrosion rate of X10 (8.5 m-{\%} Cr) and X20 (12.7 m-{\%} Cr), even in some cases X10 exhibits better corrosion resistance. This effect could be especially observed in the atmospheres with high CO2 content.",
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Sroda, S & Mäkipää, M 2004, The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content. in BALTICA VI - Life management and maintenance for power plants. Vol. 2. VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 234, pp. 553-565, BALTICA VI - Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 8/06/04.

The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content. / Sroda, Szymon; Mäkipää, Martti.

BALTICA VI - Life management and maintenance for power plants. Vol. 2. Espoo : VTT Technical Research Centre of Finland, 2004. p. 553-565 (VTT Symposium; No. 234).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content

AU - Sroda, Szymon

AU - Mäkipää, Martti

PY - 2004

Y1 - 2004

N2 - In the present study the common ferritic and austenitic steels (2.25Cr1Mo, X10, X20, TP347H, AC66, Sanicro28, Esshete 1250) usually used in biomass and waste combustion processes were investigated. The multi-sample exposure tests were carried out at isothermal temperature of 535 C in various simulated combustion atmospheres (22%H2O+ 5%O2 +xCO2 + N2) with different CO2 content varying from 0 to 25 vol-% for the samples without deposit and with filter/cyclone ash deposition. Post experimental analyses have been made using SEM/EDS and XRD techniques. The presence of the deposit increases the corrosion rate of all studied materials, especially for the ferritic steels. The corrosion rate increases with increasing CO2 content in the atmosphere. That behaviour was observed on no-deposited and deposited samples. The obtained result shows that for the ferritic steel the corrosion resistance increases with increasing Cr content in steel but only for non-deposited samples. The ferritic steels with deposits behave different. There is only a small difference on the corrosion rate of X10 (8.5 m-% Cr) and X20 (12.7 m-% Cr), even in some cases X10 exhibits better corrosion resistance. This effect could be especially observed in the atmospheres with high CO2 content.

AB - In the present study the common ferritic and austenitic steels (2.25Cr1Mo, X10, X20, TP347H, AC66, Sanicro28, Esshete 1250) usually used in biomass and waste combustion processes were investigated. The multi-sample exposure tests were carried out at isothermal temperature of 535 C in various simulated combustion atmospheres (22%H2O+ 5%O2 +xCO2 + N2) with different CO2 content varying from 0 to 25 vol-% for the samples without deposit and with filter/cyclone ash deposition. Post experimental analyses have been made using SEM/EDS and XRD techniques. The presence of the deposit increases the corrosion rate of all studied materials, especially for the ferritic steels. The corrosion rate increases with increasing CO2 content in the atmosphere. That behaviour was observed on no-deposited and deposited samples. The obtained result shows that for the ferritic steel the corrosion resistance increases with increasing Cr content in steel but only for non-deposited samples. The ferritic steels with deposits behave different. There is only a small difference on the corrosion rate of X10 (8.5 m-% Cr) and X20 (12.7 m-% Cr), even in some cases X10 exhibits better corrosion resistance. This effect could be especially observed in the atmospheres with high CO2 content.

M3 - Conference article in proceedings

SN - 951-38-6293-3

T3 - VTT Symposium

SP - 553

EP - 565

BT - BALTICA VI - Life management and maintenance for power plants. Vol. 2

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Sroda S, Mäkipää M. The corrosion resistance of boiler steels in simulated combustion atmospheres with various CO2 content. In BALTICA VI - Life management and maintenance for power plants. Vol. 2. Espoo: VTT Technical Research Centre of Finland. 2004. p. 553-565. (VTT Symposium; No. 234).