What factors cause a decline in the purity of recycled hydrogen?
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RT, at the moment I only know that a decrease in the potential aromatic content leads to a reduction in purity; are there any other factors?
1) With all other conditions unchanged, the raw material aromatic potential decreases. 2) The reaction temperature is increased. 3) The reaction pressure decreases. 4) The reaction space velocity decreases. 5) Decline in the activity of the reforming catalyst or catalyst poisoning. 6) Excessively high chlorine content in the reforming catalyst or too low water content in the gas. 7) The temperature after cooling in the reformation heat exchanger is high.
A disruption in the reforming cycle water will lead to a decrease in the purity of the reforming cycle hydrogen and an increase in the amount of cycle hydrogen. Please take a look and tell me what’s wrong with this statement
Is there circulating water for the reformation? Isn’t it water injection? Generally, it’s not annotated either
It’s not water injection; it’s a disruption in the circulating air-cooled water
The cooling effect is poor; after air cooling, the separator is unable to separate the hydrocarbons, the amount of recycled hydrogen increases, and its purity declines.
Circulating water refers to the water circulation in wet air cooling. The temperature after air cooling is high, and the purity of the circulating hydrogen decreases