Research and evaluation of T91 superheater material for high temperature corrosion in biomass power plants
Abstract
Purpose
The purpose of this paper was to evaluate corrosion resistance of superheater T91 material based on high temperature corrosion experiments with a condensate environment.
Design/methodology/approach
The contributions of water temperature, chloride concentration and corrosion time were considered and analyzed for modeling corrosion kinetics. The corrosion tendency also was predicted, and the results were compared with higher temperature exposures of T91 tube material installed in a biomass power plant.
Findings
High temperature exposure tests showed that the corrosion rates of T91 material would increase with temperature; there was a very evident corrosion acceleration point in 110°C. It was concluded that dimensional homogeneity analysis can serve as a viable evaluation method for T91 superheater material.
Originality/value
Dimensional homogeneity analysis was used as evaluation method for anti-corrosion performance of T91 superheater material.
Keywords
Acknowledgements
The project was sponsored by the Electric Power Research Institute of Guangdong Power Grid Corporation. The authors are grateful to all reviewers of the manuscript for their encouraging comments.
Citation
Zhang, H., Zhang, F., Su, W., Jiang, Y. and Li, Y. (2015), "Research and evaluation of T91 superheater material for high temperature corrosion in biomass power plants", Anti-Corrosion Methods and Materials, Vol. 62 No. 3, pp. 133-135. https://doi.org/10.1108/ACMM-01-2015-1486
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited