Reactor Feed and Heat Exchanger Control P&ID
This process P&ID shows feed preparation and basic control around a continuous reactor. Feed leaves the tank through a centrifugal pump, passes through the tube side of a steam preheater, and enters the reactor. Steam enters the shell side through TV-101, which TIC-101 adjusts from the reactor temperature measured by TT-101. Product leaves the reactor through LV-101, and LT-101 with LIC-101 maintains liquid inventory. Each loop is shown with its field transmitter, controller, final valve, and signal lines. This is a conceptual process design drawing. A real reactor system may also need pressure protection, relief, agitation, analysis, shutdown logic, sampling, and detailed heat-balance design.
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Scenario
A continuous reactor needs stable feed heating and liquid inventory control.
Key decisions
- Heat input: TT-101 and TIC-101 adjust preheater steam.
- Inventory: LT-101 and LIC-101 control the reactor outlet.
- Process path: Feed passes through the preheater before entering the reactor.
- Fail states: Both diaphragm control valves close on loss of actuator air.
When to reuse this
Use this process P&ID for a conceptual continuous reactor system with preheated feed and temperature and level control loops.
Frequently asked questions
Why control reactor level?
What does the preheater do?
Why are there two loops?
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