Which reaction is responsible for the presence of CO in the product after the reforming reaction?
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This post was last edited by lijianhuai on 2011-8-23 21:34. I really can’t remember which reaction produces CO in the product after the rearrangement reaction What is the maximum allowable content? What issues are being explained?
Regenerative charring produces CO, which is further burned to produce CO2
Have you got it wrong? I’m talking about after the reformation reaction!
This post was last edited by qugd on 2011-8-24 at 19:57. Continuous reforming involves the coking and regeneration of catalysts; does the original poster think this is incorrect? Do you think that regeneration coking only occurs in catalytic cracking? Both continuous reforming and semi-regenerative reforming involve a catalyst coking regeneration process. The carbon monoxide after the reforming reaction may also originate from the small amount of carbon monoxide carried by the regenerated catalyst. Devices for regenerating coking are not only used for catalysts; some of these devices also burn and remove coking that has formed inside pipes.
Generally, there is no CO; if there are problems with just the sampling, it is recommended that you try sampling again.
When the water content in the reforming system is high, similar to the steam reforming reaction that occurs in hydrogen production units, reactions take place under the action of the reforming catalyst, resulting in the detection of CO in the hydrogen gas (CnH2n+2 + H2O → CO (or CO2) + H2)
To what extent do you mean by high water level?
LZ is right; I just figured this out – when the gas is reformed, the water content increases, which in turn raises the CO content. Floor 6 should be the right one!
Can the high water content in the reforming reaction system also be indicated by the CO content in the product?
For the feed in continuous reforming, the water content in the raw material is generally kept below 30 ppm, so it is impossible for hydrocarbons to react with water to produce carbon monoxide. Since the catalyst is porous, during regeneration, carbon monoxide is generated as a result of coking, and this carbon monoxide enters the reforming reaction system along with the regenerated catalyst. The steam cracking temperature during hydrogen production is very high, while the reaction temperature for reforming can only be that required for the hydrogenation of carbon monoxide to form methane; this is determined by the reaction kinetics and thermodynamic properties.
We are also facing this issue – the water content in the circulating gas is high. It’s likely due to an excessive amount of water in the system. But could the amount of water in this circulating gas affect the system? Could it cause an imbalance in the chlorine balance within the system?