Abstract
Fixed wireless thickness monitoring sensors are being utilized as part of a corrosion control strategy to monitor for sulfidation corrosion in several of the side cuts and the bottoms circuit of a crude unit atmospheric column as well as a hydroprocessing fractionation bottoms system. The system is non-intrusive and uses wireless communication to minimize the cost of installation. Real time wall thickness sensors are monitoring for fluctuations in corrosion rate due to operational or feed changes. The simple visualization interface allows the data to be seen by the end user from their desktop computer. This data has been used as a means of demonstrating effective corrosion control and monitoring to the satisfaction of oversight agencies. These wireless ultrasonic measurements will be compared to standard manual inspection techniques illustrating the benefits of a fixed wireless sensor and high frequency data collection.
