STUDIES ON HYDROGEN-SULFIDE RESISTANCE OF POWDER COATINGS

被引：0
|
作者：
BOUHROUM, A
机构：
来源：
ERDOL & KOHLE ERDGAS PETROCHEMIE | 1990年 / 43卷 / 11期
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D O I：
暂无
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 influence of hydrogen sulfide on coatings was investigated in this work under the following operating parameters: -Temperature: 120-degrees-C, -Pressure: 15 MPa, -Decompression velocity: 6 sec., -Duration of test: 48 h and -H2S Concentration: 5-30 vol.%. A decrease in pull-off strength, embrittlement and discoloration were observed when increasing hydrogen sulfide concentration. A series of pigments like TiO2 and Fe2O3 formed sulfates as attacked by hydrogen sulfide. Only one system (CEV-236, PR. 8008) among the tested species was found to be chemically stable. A second coating system (CEV-236, PR. 8008 S) is stable up to a concentration of 15 Vol. % H2S.
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页码：444 / 447
页数：4
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