Regarding methanol synthesis: circulation gas pressure regulation
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This post was last edited by sxwzq on 2012-3-26 08:42. I don’t understand the principle behind pressure regulation in methanol synthesis; I hope those who know more can share their knowledge with me. (1) Operating pressure: Before the valve: 1.9 Mpa; After the valve: 0.01 Mpa. (2) It takes 45 minutes for the operating pressure to drop from 7.86 MPa to 1.91 MPa, and another 45 minutes to drop it further to 0.41 MPa. There were two attempts at finding the solution, but neither result was the most ideal. If anyone knows the answer, I hope they can share it so that everyone can learn from it.
The pressure rise and fall rate of the catalyst is determined by its strength; therefore, manufacturers generally provide a reasonable value for this. I’m not sure what 1.9 refers to, but 0.01 is probably the torch pressure
You mean hydrogen recovery, right? The exhaust gas pressure is sent to the flare; the pressure difference is large. You also mentioned the rate of pressure change, which is generally less than 5 kilograms per minute.