广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
11期
177-179
,共3页
加氢装置%氯化铵%硫氢化铵%设备%铵盐腐蚀
加氫裝置%氯化銨%硫氫化銨%設備%銨鹽腐蝕
가경장치%록화안%류경화안%설비%안염부식
hydrogenation unit%ammonium chloride%ammonium bisulfide%equipment%ammonium salt corrosion
炼油原料劣质化加剧铵盐如 NH4 Cl(氯化铵)、 NH4 HS(硫氢化铵)等结垢导致流程堵塞或极高腐蚀速率，另外部分Cl 离子在加氢装置内不断循环累积加重局部腐蚀。本文对高压换热器、高压空冷器、汽提塔等重点易腐蚀部位进行了简单分析，并建议增加脱氯系统、规范注水系统、换热器新结构应用、升级材质、完善腐蚀保运体系等方法，以满足设备的长周期安全运行。
煉油原料劣質化加劇銨鹽如 NH4 Cl(氯化銨)、 NH4 HS(硫氫化銨)等結垢導緻流程堵塞或極高腐蝕速率，另外部分Cl 離子在加氫裝置內不斷循環纍積加重跼部腐蝕。本文對高壓換熱器、高壓空冷器、汽提塔等重點易腐蝕部位進行瞭簡單分析，併建議增加脫氯繫統、規範註水繫統、換熱器新結構應用、升級材質、完善腐蝕保運體繫等方法，以滿足設備的長週期安全運行。
련유원료렬질화가극안염여 NH4 Cl(록화안)、 NH4 HS(류경화안)등결구도치류정도새혹겁고부식속솔，령외부분Cl 리자재가경장치내불단순배루적가중국부부식。본문대고압환열기、고압공랭기、기제탑등중점역부식부위진행료간단분석，병건의증가탈록계통、규범주수계통、환열기신결구응용、승급재질、완선부식보운체계등방법，이만족설비적장주기안전운행。
The worse crude oil make the process systems prone to fouling and corrosion by crystallization of ammonium salt such as ammonium chloride (NH4 Cl) and ammonium bisulfide (NH4 HS). The chlorines circulated in unit made the corrosion worse. The heavy corrosion positions in high-pressure heat exchangers, air coolers, stripper and other equipments was simply analyzed, and some advices were given such as adding dechlorination system, standardizing water injection, trying new type heat exchangers, enhancing materials, revising corrosion protection to the satisfaction of long cycles operation of equipments.
