Flexible Operation of Air Separation Units ,ChemBioEng Reviews

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Flexible Operation of Air Separation Units
ChemBioEng Reviews ( IF 6.2 ) Pub Date : 2021-07-19 , DOI: 10.1002/cben.202100023
Harald Klein ₁ , Philipp Fritsch ₁ , Patrick Haider ₁ , Robert Kender ₁ , Felix Rößler _{1,

2} , Sebastian Rehfeldt ₁ , Pascal Freko ₂ , Rainer Hoffmann ₂ , Ingo Thomas ₂ , Bernd Wunderlich ₂

Affiliation

As part of the Energiewende, the current research on energy-optimized, flexible operation of air separation units is described. A realistic, pressure-driven approach for dynamic simulation is presented, which is used to provide a detailed, transient simulation model, a digital twin, of an air separation unit. Extreme operation scenarios, such as start-up and shutdown of the main heat exchanger, the distillation columns or the entire air separation unit, are described. Since the main heat exchanger experiences repeated temperature changes, its lifetime is investigated in a test rig. The gathered data is used to derive and validate detailed, three-dimensional simulation models.

中文翻译：

空分装置的灵活操作

作为能源转型的一部分，描述了当前对空分装置能量优化、灵活运行的研究。提出了一种现实的、压力驱动的动态仿真方法，该方法用于提供详细的瞬态仿真模型，即空气分离装置的数字孪生模型。描述了极端操作场景，例如主换热器、蒸馏塔或整个空气分离装置的启动和关闭。由于主换热器会经历反复的温度变化，因此在试验台上对其寿命进行了研究。收集到的数据用于推导出和验证详细的三维仿真模型。

更新日期：2021-08-05

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