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提出一种新的催化裂化吸收－解吸单塔流程。选择某工业装置吸收－解吸塔作为典型例子进行了模拟计算。计算表明，塔内流量和再沸器加热负荷大大减少。与传统单塔流程相比，解吸段再沸器负荷减少了３９％ ；塔内吸收段气相负荷减少２１．５％ ，解吸段气相负荷减少４２．８％ 。与双塔解吸塔冷热两股进料流程相比，富气取热负荷和总取热负荷基本相同，而解吸段再沸器负荷减少了３７％ ，总加热负荷也减少了６．８％ ；塔内吸收段气相负荷基本相同，解吸段气相负荷减少４１．３％ 。对新的催化裂化吸收－解吸单塔流程工艺条件的模拟研究结果表明，进料取热应和双塔流程相同，而加热板宜选在解吸段的中部。
Proposed a new catalytic cracking absorption - desorption single tower process. Select an industrial plant absorption - desorption tower as a typical example of a simulation. Calculations show that the tower flow and reboiler heating load are greatly reduced. Compared with the traditional single tower process, the reboiler load in desorption section decreased by 39%; the gas phase load in tower absorption section decreased by 21.5% and the gas phase load in desorption section decreased by 42.8%. Compared with the hot and cold feed processes of the double tower desorption tower, the rich and negative heat load are basically the same, while the reboiler load in the desorption section is reduced by 37% and the total heating load is reduced by 6.8% The gas phase load in the absorption section of the tower is basically the same, and the gas phase load in the desorption section is reduced by 41.3%. The simulation results of the new catalytic cracking absorption-desorption single tower process show that the feed should be the same as the two-column process, and the heating plate should be selected in the middle of the desorption section.