What is the purpose of adding ceramic balls on the medium-temperature catalyst?
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Do the ceramic balls at the upper part of the medium-temperature catalyst prevent the catalyst from becoming pulverized? Does it also act as a distributor? Does the porcelain ball at the bottom serve any other purpose besides preventing the catalyst from entering the pipeline?
The upper porcelain ball serves both as a gas distributor and as a means to absorb impurities such as moisture and tar； In addition to what the original poster mentioned, the lower porcelain ball also serves as a gas distributor.
The main purpose of filling ceramic balls is to ensure gas distribution. Not only in the medium-temperature case, but also in the low-temperature case, it is required to install one or two layers of ceramic balls or refractory balls at the upper part of the furnace catalyst; the function is the same.
I would like to ask: what are the typical contents of cobalt and molybdenum in low-volatility catalysts?
It facilitates gas distribution, protects the catalyst, and prevents flow bias.
Its functions include gas distribution, impurity absorption, and prevention of catalyst pulverization.
It mainly helps to absorb impurities, compact the catalyst, prevent it from being carried away, and also acts as a distributor
1. Absorb impurities and moisture. 2. Distribute gas 3. Absorb heat, transfer heat, and store heat to stabilize the catalyst layer temperature 4. Support the catalyst
The function of air flow distribution is also to prevent damage to the catalyst caused by sudden increases in pressure drop
It helps to absorb impurities, compact the catalyst, prevent it from being carried away, and also acts as a distributor
It also has a heat storage effect, so a small amount of water introduced into the furnace can vaporize before coming into contact with the catalyst; only a small amount is sufficient – too much and it won’t work! !