The kerosene hydrotreater unit is a catalytic chemical process unit used to remove sulfur (S) from kerosene. The purpose of removing the sulfur is to reduce the sulfur dioxide (SO2) emissions that result from using those fuels in automotive vehicles, aircraft, railroad locomotives, ships, gas or oil burning power plants, residential and industrial furnaces, and other forms of fuel combustion.
Precise pressure and temperature control is needed to get the highest yield from the process. The output from both the pressure and the temperature transmitter must be available for two control systems.
The pressure and temperature transmitters are both connected to one double channel PR 9106B HART transparent repeater. The 9106B inputs are wired so two independent active/passive outputs from each device are available – while maintaining SIL 2.
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