Scaling Cause of High Temperature Acid Inhibitor Pump Outlet in A Distillation Unit

Inferior sour crude oil was refined in a distillation unit. High temperature acid inhibitor was injected into the initial common bottom oil to alleviate the high temperature acid corrosion. The high temperature acid inhibitor pump outlet pipe was blocked up entirely after using high temperature acid inhibitor MMS-05. The scale formation causes were found after the scale sample from the high temperature acid inhibitor pump outlet was analyzed and scaling test was performed in laboratory.