利用分形维数定量表征催化剂的形状不规则程度 ,对其中进行的气 -固相催化反应进行了分析计算 .计算结果表明 ,催化剂的形状越不规则 ,催化剂的外表面分形维数越高 ,在相同反应条件下 ,催化剂的利用率越高 .同时给出了适用于形状不规则催化剂的通用 Thiele模数 .计算结果还表明 ,分形维数只影响通用 Thiele模数的数值 ,但在相同的通用Thiele模数下 ,催化剂具有相同的效率因子 The fractal dimensions were used to quantitatively characterize the shape irregularities of the catalysts, and the gas-solid phase catalytic reactions were analyzed and calculated.The results show that the more irregular the shape of catalyst, the higher the fractal dimension of the outer surface of catalyst Under the same reaction conditions, the utilization of the catalyst is higher, and the general Thiele modulus suitable for the irregularly shaped catalyst is given. The calculation results also show that the fractal dimension affects only the value of the universal Thiele modulus, but in the same general purpose Thiele modulus, the catalyst has the same efficiency factor