Corrosion inhibition and iron sulfide dispersing in refineries using the reaction product of a hydrocarbyl succinic anhydride and an amine
申请人:NALCO CHEMICAL COMPANY
公开号:EP0662504A1
公开(公告)日:1995-07-12
Disclosed are a method for inhibiting corrosion in crude oil distillation towers, an improvement in crude oil fractionation, a method for dispersing iron sulfide in a hydrocarbon stream and a hydrocarbon dispersion using the reaction product of hydrocarbyl succinic anhydride and an amine. The reaction product has a molecular weight of from 500-800, the hydrocarbyl substituent has 6-20 carbon atoms, and the amine is selected from EDA, DETA, TETA, TEPA, PEHA, AEP, piperazine, 1,2-PDA, 1,3-PDA, IBPA, MDA or HMDA. The imide product is a filming inhibitor used to treat metal surfaces subject to mineral acid corrosion and disperse iron sulfide particles by adding 3 to 24 ppm to sweet or sour crude contacting the metal surfaces.
本发明公开了一种抑制原油蒸馏塔腐蚀的方法、一种改进原油分馏的方法、一种在烃流中分散硫化铁的方法以及一种使用烃基丁二酸酐和胺的反应产物的烃分散体。反应产物的分子量为 500-800,烃基取代基有 6-20 个碳原子,胺选自 EDA、DETA、TETA、TEPA、PEHA、AEP、哌嗪、1,2-PDA、1,3-PDA、IBPA、MDA 或 HMDA。亚胺产品是一种成膜抑制剂,用于处理受矿物酸腐蚀的金属表面,并通过向接触金属表面的甜或酸原油中添加 3 至 24 ppm 的硫化铁颗粒来分散硫化铁。