METHOD FOR MANAGING AN AMMONIA SYNTHESIS REACTOR DURING FLUCTUATING FEED RATES

Claims

The reaction rate of a catalyst in an ammonia synthesis reactor can be managed during a variable feed flow period in order to regulate the reactor outlet temperature. The reactor has an initial feed ratio prior to the start of the variable feed flow period, which is the initial H2 flow to the initial N2 flow (H:NI). The method comprises, among others, reducing H:NI to a transition feed ratio H:NTr1 if the catalyst is operating in Productivity Regime 1, or increasing H:NI to a transition feed ratio H:NTr2 if the catalyst is operating in Productivity Regime 2. The catalyst reaction rate is managed, and the reactor outlet temperature is regulated.