The characteristics of various process designs and simulated calculation are discussed in this paper based on revamping of a desorption tower and an ammonia distillation tower.

通过解吸塔和蒸氨塔的改造实例，应用模拟计算结果，讨论了它们各自的不同流程设计及特点。

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The results showed that the heat taken from the feed section should be the same as in the double tower case, and the added reboiler should be located in the middle of the desorption section.

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。

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Nitrogen impurity adsorption when absorption tower up to a certain extent, reduce pressure desorption of zeolite molecular sieve, absorbent regeneration, recycling USES.

当吸附塔内吸附的氮等杂质达到一定程度后，降低压力使沸石分子筛解吸，使吸附剂再生，得以重复循环使用。

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