一、腐蚀现状大庆天然气公司从国外引进了十六套天然气加工装置,现已有十四套投入生产,经过几年的运转,发现装置中的一些设备有不同程度的腐蚀。 1.装置腐蚀概况以大庆天然气公司杏树岗大队为例。该大队下设杏三、杏九、杏V-1三个站。每个站都有两套装置,一套是原油负压稳定装置(从美国引进),从原油中脱出油田伴生气;另一套是500号增压浅冷装置(从意大利引进),制冷天然气,回收液态烃。以杏 I. Corrosion Status Daqing Natural Gas Company imported 16 sets of natural gas processing plants from abroad. Now 14 sets have been put into production. After several years of operation, some of the installations in the plants have been found to have different degrees of corrosion. 1. Equipment corrosion profile to Daqing Natural Gas Company Xingshuang Brigade as an example. The brigade consists of apricot three, apricot nine, apricot V-1 three stations. Each station has two sets of devices, one is the crude oil vacuum stabilizer (imported from the United States), from the oil prolapse associated gas field; the other is 500 supercharged light cold device (imported from Italy), refrigeration natural gas , Recovery of liquid hydrocarbons. With apricot