Evaluation of New Corrosion-Resistant Superheater Tubing in High-Efficiency Waste-to-Energy Plants
- 1 July 1998
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 54 (7) , 576-589
- https://doi.org/10.5006/1.3284886
Abstract
Field corrosion tests were conducted on eight single tube materials and two welded overlay materials in three typical Japanese waste incineration plants in an effort to develop new corrosion-resistant superheater tubes capable of functioning efficiently under temperature and pressure conditions of 500°C and 100 kgf/cm2-g in high-efficiency waste-to-energy (WTE) plants. Austenitic alloys containing higher concentrations of chromium, nickel, and molybdenum [Cr + Ni + Mo] showed excellent corrosion-resistant properties, and the new alloys JHN24 and HR30M showed good corrosion resistance, afferent corrosion rates found in each of the three plants were explained by differences in operating conditions, such as gas temperature, concentration of molten salts resulting from chlorine (Cl) content of deposits, heavy metal (zinc oxide [ZnO] + lead oxide [PbO]) content, etc. It was confirmed that the corrosion rate of materials positioned in the first tube row facing the oncoming flow of gas was somewhat high...Keywords
This publication has 0 references indexed in Scilit: