申请人:INSTITUTO MEXICANO DEL PETROLEO
公开号:US20150112096A1
公开(公告)日:2015-04-23
N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.
通过一种在无溶剂条件下、温度范围为30至180°C、时间为1至10小时、大气压下进行的反应过程,可以获得碳链长度在6至18碳之间的N-烷基、N-烯基、N-环烷基、N-芳基氨基或亚氨基丙酸,或碳链长度在8至30碳之间的烯基链。由N-烷基、N-烯基、N-环烷基、N-芳基氨基或亚氨基丙酸、由丙烯氧化物或乙烯氧化物衍生的聚醚或共聚物以及芳香化合物(如甲苯或二甲苯)、柴油或汽油或异丙醇和乙醇等醇类溶剂或其混合物组成的配方,可抑制管道和储罐的铁基金属腐蚀,并用于输送原油和液体燃料。一种抑制铁基金属腐蚀的方法是向原油和液体燃料(如汽油、柴油和航空燃料)中添加有效量的腐蚀抑制剂。