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Hot Vapor Bypass Control Techniques by onizuka-t2263 is a document available to read on EtoBox.
This document discusses different methods for controlling condenser hot vapor bypass to regulate column pressure in distillation columns. Figure 1 shows a simple and effective method using separate controllers for column pressure and accumulator pressure. Figure 2 shows a "improved" method using a single pressure difference controller, but this creates interactions that make the loops impossible to tune. Figure 3 proposes using the column pressure setpoint instead of actual pressure in the difference contro
- Author
- onizuka-t2263
- Language
- EN