I would like to ask how to measure the bed pressure after installing a new catalyst, as well as questions regarding its placement
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Generally, after installing a new catalyst, isn’t it necessary to measure the pressure of the bed layer after the catalyst has been installed, in order to prevent excessive local reactions? And when lifting the catalyst and placing it in place, is it poured in directly? Please ask Chuanyou from the factory to explain
By the way, regarding catalyst screening: once the raw materials arrive at the site, is it necessary to screen them again? I asked the workers at the factory, and some said that screening is done from the beginning, but as more work is done over time, people stop bothering to do it. Will this cause any problems?
See what catalyst it is; if there’s enough time and you’re not afraid of the hassle, it’s better to carry out a screening process. However, this requires effort and time. If the weather is good and it’s not raining, you can take your time – there’s no need to worry about getting wet – and carry out the screening to remove dust and reduce resistance
The catalyst is of course poured in directly, and there is a pressure gauge installed on the bed layer to show the pressure
Catalyst loading is divided into dense-phase loading and dilute-phase loading； Generally, fresh catalysts do not need to be sieved, while used catalysts should be sieved. There are strict requirements for catalyst loading; when a certain amount of catalyst is loaded, it is necessary to measure the empty height and calculate whether the loading density meets the specified requirements.