Fireside corrosion of superheater materials under oxy-coal firing conditions

被引：12
|
作者：
Abang, Roger [1 ]
Lisk, Alexander [1 ]
Krautz, Hans Joachim [1 ]
机构：
[1] Brandenburg Univ Technol BTU Cottbus, D-03046 Cottbus, Germany
来源：
EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY 2013, EGUDIVISION ENERGY, RESOURCES & THE ENVIRONMENT, ERE | 2013年 / 40卷
关键词：
High-temperature corrosion; deposit-induced corrosion; gas phase oxidation; superheater alloys; oxy-coal combustion;
D O I：
10.1016/j.egypro.2013.08.035
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The present study investigates the fireside corrosion behavior of selected superheater materials, namely: T24, P92, VM12-SHC, A800HT, and 7RE10 under oxy-coal combustion atmospheres. Data on mass change, scale thickness, metal loss, surface morphology and micro-structural characteristics of corrosion products were obtained. The alloy specimens were analyzed by SEM-EDX, light microscopy and X-Ray diffraction techniques. The results after 2000 hours of exposure at a metal surface temperature of 600 degrees C indicate that metal wastage increased with decreasing Cr-content under oxy-coal conditions. (C) 2013 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：304 / 311
页数：8
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