气体热载体干馏炉内压力降的研究

摘要

油页岩在气体热载体干馏炉内干馏过程中，由于块状堆料之间存在不同的空隙，导致气体在空隙中通过，由于阻力的作用，压力会产生损失，行成一定的压降。本研究采用散料层阻力损失计算公式和Ergun方程两种方法对干馏炉的压力降进行计算，并与实际压降进行比较，结果发现这两种方法所得理论值与实际值比较接近，而且变化趋势与实际值基本一致，利用Ergun方程更适用于工程运行。%During the retorting process of gas-heat carrier retort,the gas passes through the void generated by material pile-up and leads to pressure drop because of the effect of frictional drag. This study uses bulk-materi-al-layer-resistance-loss-calculation-formula and Ergun equation to calculate the pressure drop of retort. The re-sults are compared to the actual pressure drop. It is observed that these two methods conclude the theoretical values close to the actual ones,and that the trends for both two types of values are basically the same. Ergun is preferable for the operation of the project .