Does the space velocity of the process gas affect the catalyst?
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1. Does the space velocity of the process gas affect the catalyst? 2. What are the hazards of high air velocity?
At high space velocities, the conversion rate may not reach the equilibrium value; however, high pressure drops do not have any effect on the catalyst.
Catalysts have an optimal operating space velocity range, which has no effect on the catalyst itself. If the air velocity is too high, the conversion rate will definitely be low.
A high space velocity reduces the conversion rate; to maintain this conversion rate, the bed temperature must be increased, which in turn shortens the catalyst’s lifespan and reduces its operational period. A low space velocity increases the residence time of the process gas, preventing the heat generated by the reaction from being removed in a timely manner, and this also leads to a shorter catalyst operational period
The airspeed fluctuates greatly, which is harmful in many cases.