When loading the copper-based catalyst in the synthesis tower, it is necessary to prevent metal objects from falling into the tower. Why is that?
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Some sources say it is to prevent the formation of hydroxyl compounds; since it itself is an alloy steel, as are the components inside the tower, wouldn’t that have an impact?
When other metals fall into the synthesis tower, they can accelerate the occurrence of side reactions, acting as catalysts for them. It not only affects the quality of crude methanol but also poses difficulties in methanol distillation.
Those who agreed to go upstairs also caused contamination of the catalyst, which reduced its activity and affected the methanol synthesis reaction
When loading CAT, it is necessary to prevent metal objects from remaining or falling into the synthesis tower, as during synthesis, syngas undergoes the reactions CO + 2H2 = CH3OH; CO2 + 3H2 = CH3OH + H2O. In the presence of iron, the formation of by-products increases; the main by-product is iron carbonyl, which damages CAT and affects its service life. Therefore, special care must be taken to ensure that no metals fall into the synthesis tower when installing CAT! !
In the presence of iron, the formation of by-products increases; the main by-product is iron carbonyl, which acts as a catalyst for methanation reactions, leading to an abnormally high temperature in the bed