Details

For all reactions the instantaneous rate is ,

where is the change in the moles of with time, is the kinetic constant, is the concentration of , and is the order of the reaction.

The conversion is calculated from ,

where is the space velocity, is the conversion of , and is the conversion of at the exit.

The conversion has an upper limit of 1, so that if at a given space velocity, then conversion is 1 at lower space velocities.

The overall rate is ,

where is the total number of moles reacting with time in the reactor, and is the feed concentration of .

Negative first-order reaction:

instantaneous rate:

conversion:

negative half-order reaction:

instantaneous rate:

conversion:

zero-order reaction:

instantaneous rate:

conversion:

half-order reaction:

instantaneous rate:

conversion:

first-order reaction:

instantaneous rate:

conversion:

second-order reaction:

instantaneous rate:

conversion: