What level of negative pressure can a catalyst tank achieve
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Having worked with catalytic units for many years and frequently adding and removing catalysts, I had never thought about what level of negative pressure could be achieved in the catalyst tank during vacuuming, nor did I have any idea. Now I finally know that the vacuum gauge shows that a negative pressure of 80 kilopascals can be reached.
The key factor is still the design value of yours; ours is -0.1MPa
Agree with the person above; we have -0.10 MPa as well.
Yes, this figure isn’t absolute; it depends on the volume of your catalyst tanks, as well as the number and type of steam evacuators used. It also depends on the pressure of the steam during vacuuming. Here, we can achieve a pressure of -0.1 MPa, as we usually use two steam evacuators for vacuuming, and our steam pressure is maintained at around 0.9 MPa
I agree with the fourth floor – it depends on things like each steam injector, as well as the size and material of the catalyst tanks.
Ours is -0.1Mpa
Several poster owners misunderstood my meaning. I wasn’t referring to the pressure resistance of the equipment; my catalyst tank can withstand a negative pressure of -0.1 Mpa and a positive pressure of 0.85 Mpa. What I meant was the actual negative pressure level that the catalyst tank can reach when the steam evacuator is in use, as this indicates the capacity of the evacuator and can also give an indication of the difficulty involved in adding the catalyst. -0.1 Mpa is an extreme value that cannot be achieved, even with three-stage vacuum pumping.
The vacuum tank is designed for a completely vacuum environment; the pump should be able to reach 0.1 MPa
Generally, 0.5 kilograms is quite good