Reasons of equipment corrosion in NMP in Lanzhou Petroleum Processing & Chemical Complex were discussed, pointing the main reason is acid constituents produced from chemical reaction of solvent. The way to solve this problem was also given.

• 对兰州炼化总厂NMP装置设备腐蚀的原因进行了探讨,认为溶剂化学反应产生酸性组分是其主要原因,并据此提出了对策。