What impact will the reformation of reduced hydrogen carrying hydrocarbons have?
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What are the effects on the catalyst and the reaction when reformed hydrogen carrying hydrocarbons is used? Once, our reduction electroheater was damaged, and the unreduced catalyst was fed directly into the reactor. Personally, I don’t think this had much impact on the reaction. The reason for feeding it directly into the reactor without first carrying out reduction was to use the circulating hydrogen in the reactor for reduction. I hope experts can provide more guidance
It is desirable that hydrogen carrying hydrocarbons does not have a good effect on catalyst reduction, as the presence of hydrocarbons reduces the purity of the reducing hydrogen. After regeneration, the reforming catalyst is in an oxidized state, while after reduction it is in a reduced state; the reduced-state reforming catalyst exhibits better activity. Using reformed and reverse-reduced hydrogen for reduction may show little change in the short term, but long-term use is detrimental to catalyst activity due to the low purity of the hydrogen in the reforming cycle.
Thank you for your guidance. I have looked up some information; it turns out that hydrogen carrying hydrocarbons primarily affects the reduction process. Hydrocarbons tend to undergo intense hydrolysis reactions in an environment of hydrogen and catalyst, which can cause a sharp rise in the temperature inside the reduction chamber and damage the catalyst.
Reforming hydrogen carrying hydrocarbons first affects the reduction of the catalyst, and may also cause coking of the electric heaters in the reduction system, rendering them non-functional.
Oil is harmful to electric heaters! And as you said, it will damage the catalyst! This year, during my shutdown, a hydrolysis reaction occurred! But it was dealt with quite promptly! When removing the catalyst, it was found that it had accumulated carbon deposits!