摘要
靖边气田中分离器污水水质分析和垢样检测表明,其腐蚀主要由CO2-H2O(Cl-)-H2S系统作用引起的电化学腐蚀及SRB微生物腐蚀。采用Φ819 mm×60 mm×30 mm×51 mm的镯式铝牺牲阳极和45 mg/L氮氚杀菌剂联合防护,腐速由1.673 mm/a降到0.097 mm/a,符合国家标准<0.125 mm/a的要求。现场应用表明,运行1年后,再检时未发现明显腐蚀现象,防护效果良好。
Waste water quality and scale sample analysis of separator in Jingbian gas field showed that corrosion was caused mainly by CO2-H20（Cl-）-H2S electrochemical corrosion and SRB microbiological corrosion. The rate of corrosion could be down from 1. 673 mm/a to 0.097 mm/a by using Φ819 mm × 60 mm× 30 mm× 51 mm size of bracelet-style aluminum sacrificial anode and 45 mg/L nitrogen tritium method. The corrosion rate would meet the national standard which is less than 0. 125 mm/a. After one- year-usage at the plant ,obvious corrosion was not discovered and corrosion protection was effective.
出处
《应用化工》
CAS
CSCD
2009年第10期1545-1548,共4页
Applied Chemical Industry
关键词
天然气
汽水分离器
腐蚀
防护
natural gas
the steam separator
corrosion
protection
