For a strong exothermic reaction in a fixed catalytic bed reactor, when the inlet parameters reach or surpass the certain limit, the heat generated by chemical reaction will greatly surpass the heat removed from reaction system, it brings about hot spot temperature to jump up rapidly and be out of control. So there are bad influences on process conversion, selectivity, catalytic activity and span-life. To study the parametric sensitivity is mainly to reveal a safe operation upper limit in theory, thus these...