中文摘要：

在50—120℃和50—150℃范围内，采用非稳态热重法分别测定了甲醇和乙醇在活性碳中的有效扩散系数。实验结果表明，在测定的范围内，这两个工质对的有效扩散系数均近似遵从Arrhenius关系。在相同的温度下，活性碳／甲醇和活性碳／乙醇的脱附有效扩散系数均大于各自的吸附有效扩散系数。在相同的温度下，活性碳／甲醇的吸附有效扩散系数和脱附有效扩散系数均比活性碳／乙醇的大。

英文摘要：

The effective diffusivities of activated carbon/methanol and activated carbon/ ethanol were determined by thermogravimetry in the temperature range from 50℃ to 150℃ and from 50℃ to 120℃, respectively. The experimental data show that the effective diffusivities of the two working pairs can be expressed in the Arrhenius equation and the effective diffusivities in desorption process are larger than the effective diffusivities in adsorption process at the same temperature. The effective diffusivity of activated carbon/methanol is larger than that of activated carbon/ethanol either in adsorption or in desorption at the same temperature.