Reformation hydrogen-to-oil ratio issue
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The amount of recycled hydrogen and the feed to the reforming reaction remain almost unchanged, and with the same hydrogen-to-oil ratio, a rotation speed of 5550 was required before to achieve this ratio; but now 5050 is sufficient. What is the reason for this?
The person upstairs is probably right. Your hydrogen purity is low, which increases its molecular weight; as a result, it seems that the hydrogen flow rate remains unchanged, but in reality the partial pressure of hydrogen has decreased. Compared to before reducing the speed, the performance should be somewhat worse