Naphtha reformer

Temperature measurement



The naphtha reformer unit is a primary process unit used to elevate gasoline octane and provide intermediate feedstock to BTX (Benzene, Toluene, Xylene) petrochemical processes. As this process provides higher octane material to the gasoline pool, both quality (octane) and reliability are key to ensuring gasoline blends meet the required specifications.


Precise temperature measurements of all reactor heaters are necessary to ensure product quality. At the same time, it is essential to keep the reformer unit online as it provides hydrogen to units further downstream in the process. An unscheduled shutdown of the naphtha reformer can impact on other units that are dependent on the hydrogen generated.


TC sensors are connected to the PR 5350B head mounted Profibus PA / Foundation Fieldbus transmitter for conversion to Foundation Fieldbus signals connected back to the control system. The 24 bit A/D converter assures the highest accuracy available in the process industry. Using a double element TC-sensor connection allows automatic switch to the second sensor if the primary sensors fails and a warning flag is transmitted over the digital signal.






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