Leaks in Reboiler Detected With Months of Advance Notice Case StudyCHALLENGE The company, a manufacturer of engineering thermoplastics, had previously experienced failures in their shell-and-tube reboilers. These reboilers were part of a process that produces a precursor for plastics production. They suspected corrosion but had little available online instrumentation to measure the water chemistry. SOLUTION Aspen Mtell was deployed on the unit to increase the notification period. Using about 30 upstream process variables, a signature was identified that signaled a slow windup to the leak event. This was consistent with engineering intuition. In a period of just three weeks, the team met at the site, reviewed the process drawings, gathered the required raw data and built th

Join for free to read