A concurrent approach, which allows for determining multi-component equilibrium isotherms and designing a multi-component adsorption process within a realistic amount of time and effort, is demonstrated for the first time in a moving bed process using an amine-impregnated solid adsorbent in the presence of CO₂ and H₂O. The proposed approach extracts measurement points for the binary isotherms from the temperature and partial pressure regions that exist in the optimized process from all potential combinations of CO₂ partial pressure, H₂O partial pressure, and temperature. At the extracted points, the equilibrium adsorption amounts were measured experimentally to obtain multi-component adsorption amount data, with which the binary isotherm parameters were determined by the Tikhonov regularization. The accuracy of the equilibrium isotherm was further improved iteratively by repeating the steps described above. The proposed approach enables us to determine the binary interactions parameters in the isotherm model reducing the multi-component measurement points only to 12, while obtaining the optimized process operation at the same time.

中文翻译：

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一种用于确定二元等温线和优化 CO2 和 H2O 共存固体胺吸附剂的移动床吸附剂的并发方法


在 CO₂ 和 H₂O 存在下，使用胺浸渍固体吸附剂的移动床工艺首次展示了一种并行方法，该方法允许在实际的时间和精力内确定多组分平衡等温线并设计多组分吸附过程。所提出的方法从 CO₂ 分压、H₂O 分压和温度的所有潜在组合中，从优化过程中存在的温度和分压区域中提取二元等温线的测量点。在提取点，通过实验测量平衡吸附量以获得多组分吸附量数据，通过Tikhonov正则化确定二元等温线参数。通过重复上述步骤，平衡等温线的精度进一步迭代提高。所提出的方法使我们能够确定等温线模型中的二进制相互作用参数，将多分量测量点减少到 12 个，同时获得优化的工艺操作。