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用国产S108钒催化剂，装填量为4.58L，在单级、径向绝热固定床反应器上，在流向变换强制周期操作条件下对低含量二氧化硫（0.53％～5.75%）催化氧化过程的特性进行了系统的模试研究。考察了原料气中SO_2含量、气速、操作周期以及床层预热温度等因素对S0_2时均转化率、床层瞬态温度分布、形状及其峰值，以及对热波传播速度的影响，为验证数学模型的预测能力和修正某些模型参数奠定了基础．结果证明，这一种人为非定态操作模式在用于低含量原料气的可逆放热反应时，的确具有很大的优越性。
Using the domestic S108 vanadium catalyst with a loading of 4.58L, the characteristics of the catalytic oxidation process of low content of sulfur dioxide (0.53% ~ 5.75%) were carried out in a single stage, radial adiabatic fixed bed reactor under flow-changing forced-period operation conditions The system of mold research. The effects of SO 2 content, gas velocity, operating cycle and bed preheating temperature in the feed gas on the S 2 O 2 conversion rate, the transient temperature distribution in the bed, its shape and its peak, and the propagation speed of the heat wave were investigated The mathematical model to verify the ability to predict and correct some of the model parameters laid the foundation. The results show that this kind of artificial non-stationary mode of operation has great advantages when it is used in the reversible exothermic reaction of low content of feed gas.