Background Sometimes, it’s necessary to measure a process temperature at a location without a thermowell. One option is to install a skin thermocouple mounted under the insulation on the outer surface of the pipe or equipment. As expected, this will lead to a less-accurate measurement. To improve the accuracy, a measurement model can be developed […]
Background Distillation column reboilers are typically one of the following types, kettle, fired, forced-circulation, or, thermosiphon. In the operation of thermosiphon reboilers, flow through the reboiler is achieved naturally via the density difference between, the higher-density single-phase (liquid) feed from the column bottoms, and, the lower-density two-phase (vapor-liquid) reboiler outlet. In the case of a […]
Abstract A review of the wide range of AVEVA ROMeo® projects at Shell’s Scotford site that moved offline production and safety systems online. Projects include, fired heater outlet vaporization, column relief load, column loading, preheat hydraulics, heater and exchanger cleaning, and, advanced process control (APC) coordination. The motivation, implementation details, benefits achieved, and future work […]