What are the reasons for the high pressure difference in the synthesis tower?
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Hello everyone, during catalytic reduction, the pressure difference in the synthesis tower reached 0.2 MP. What could be the reason for this? How to handle it? Thank you
Reply to 1# wyjjhj2008: If the system pressure difference is 0.2 MP before hydrogen is supplied, check the pressure difference gauge. If there are no problems, then the issue lies in the loading process. Pulverization is severe. I have another question: how many meters tall is your synthesis tower?
It wasn’t installed properly from the start! A large pressure difference is likely to occur! Another point: is the pressure relief rate also relatively fast during operation? Pulverization! It is recommended to purge after parking!
1. Instrument issue. 2. It is caused by uneven packing density when loading the catalyst.
What is the pressure in your synthesis system during circulation? What is the circulation volume? What is the gas flow rate? This is related to the resistance of the synthesis tower as well. High resistance during reduction does not necessarily mean high resistance during production.
Our catalyst was filled by a professional filling company, so there should be no problems; the system pressure during circulation is 0.4 MP. The flow rate is currently unknown due to a faulty flow meter; there are no issues with the instruments, as they have all been checked.
(1) The catalyst was not placed in a sealed plastic container before loading, or it was loaded in damp weather. (2) The catalyst has become powdered. (3) An excessively fine mesh size was chosen during sieving for loading. (4) The rules of the reduction process, namely \"three lows, three no’s, and three stabilities,\" were not followed during the reduction process. This leads to poor catalyst reduction or catalyst sintering