【摘要】 本文建立了鲁奇副产蒸汽管壳型甲醇合成塔催化床的双速率二维模型,求得反应管内轴向及径向的浓度及温度分布的数值解。由于管间副产40kg/cm~2的蒸汽,其温度与管内催化床的温度接近,反应管内外的温度差小,反应管内径向温度差小。模拟计算结果表明,由于径向温度分布均匀,工业装置的计算可采用一维模型。更多还原

【Abstract】 In this paper, the two-dimensional model of Lurgi tube-shell type methanol synthesis catalyst beds has been established.The numerical solutions of concentration and temperature profiles in the radial and axial direction of the reaction tubes have been obtained. As the temperature of the by-product 40 kg/cm~2 steam between tubes approaches the temperature of the catalyst bed,the difference of the temperatures within and outside the reaction tubes is very small, hence the temperature differcnce in the radial direction within the tubes is also very small. The result of modeling calculation shows that under the above condition one dimensional model may be used in the calculation of commercial device.更多还原