What control method is better to choose?
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There is a reactor that needs to be heated, with the heating range being approximately between 140 and 160 degrees. At this time, the pressure inside the reactor is between 0.4 and 0.6 MPa. Once the desired temperature range is reached, CO2 is introduced into the reactor, causing the pressure to rise to between 0.6 and 0.8 MPa. I would like to ask all the fellow sailors here: what control method would be suitable for achieving this control? Now I have two ideas: 1. Simple pressure single-loop control, but I feel that temperature also has a certain impact on this pressure, so it doesn’t seem to be a comprehensive approach. 2. Use temperature and pressure cascade control, but the temperature changes not significantly here; it’s just that the temperature range varies each time heating takes place. So I would like to ask everyone for their advice; thank you all.
Can’t anyone answer? Uuuu:'(
The control of a reactor generally cannot be resolved by simple single-parameter or cascade control. Here, the key issue is how to properly balance the two parameters of temperature and pressure. First, it is necessary to understand the reaction mechanism, communicate more with the process team, and sometimes special control methods are required.
Reply to 3# wangyongan: Yes, what you say makes sense. But the specific reaction process as described in the technical details is just that, and it’s quite confusing.
Reply to 3# wangyongan: Yes, what you say makes sense. But the specific reaction process as described in the technical details is just that, and it’s quite confusing.