Lub reactor sib npaug ntawm lub xeev piav txog kev sib raug zoo ntawm yam xws li reactant concentration, cov tshuaj tiv thaiv tus nqi, thiab cov tshuaj tiv thaiv kab mob. Reactor tswj yuav tsum tau ua raws li qhov sib npaug ntawm lub xeev kom muaj kev ruaj ntseg ntawm cov txheej txheem tshuaj tiv thaiv.
Lub reactor sib npaug ntawm lub xeev yuav qhia tau hais tias: dC/dt=F(C_0 - C)/V - r(C)
qhov twg C sawv cev rau reactant concentration, t sawv cev rau lub sij hawm, F sawv cev tus nqi txaus, V sawv cev rau reactor ntim, thiab r sawv cev rau cov tshuaj tiv thaiv tus nqi. Qhov kev sib npaug no piav qhia txog cov txiaj ntsig ntawm reactant concentration hloov lub sij hawm, tus nqi tshuaj tiv thaiv, thiab ntim reactor.