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Keith Riley is a pressure and temperature product business manager with Endress+Hauser. The Greenwood, Ind.-based company can be reached at 888-363-7377 or visit the company’s website at www.us.endress.com.
Temperature profiling involving multiple sensors is used when a single temperature sensor cannot provide the information needed. Temperature profiling using multipoint temperature sensors can extend across a vessel or reactor in either straight or octopus-like configurations.
Instrumentation for temperature profiling in oil and gas, refining and petrochemical applications is available, but care must be taken during installation and use.
Measuring temperature across a process unit — for example, a furnace, desalter, hydrofiner, fixed-bed reactor or hydrocracker in refineries or similar process units in chemical plants — leads to improved process control, increased catalyst life, more efficient production, fewer process upsets and decreased emissions.