engleski

Effect of the Internal Mass Transfer Resistance on the Ni/Al2O3 Deactivation by Thiophene

Influence of mass transfer resistance on the rate of Ni/Al2O3 deactivation by thiophene in the reaction of benzene hydrogenation was investigated. The process was studied using the gas-flow differential fixed bed reactor at atmospheric total pressure on catalyst pellet 5*5 mm in the temperature range from 373 to 473 K. Excellent agreement was found with a power law equation da/dt=kd * ad. The results indicate that the deactivation rate constant decreases with increasing temperature with simultaneous increase in deactivation order.

catalyst deactivation; poisoning by thiophene; kinetic model; influence of mass transfer

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