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A Rigorous Membrane Gas-Solvent Contactor Model for Flowsheet Simulation of the Carbon Capture Process
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-06-23 , DOI: 10.1021/acs.iecr.2c00673 Ehsan Soroodan Miandoab 1 , Colin A. Scholes 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-06-23 , DOI: 10.1021/acs.iecr.2c00673 Ehsan Soroodan Miandoab 1 , Colin A. Scholes 1
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A rate-based membrane gas-solvent contactor model was programmed in Aspen Custom Modeler (ACM) and interfaced with the Aspen Plus software suite to enable flowsheet simulations of carbon capture processes. After validation with different sets of laboratory and pilot plant data, the model’s rigorous approach was examined against the commercial RadFrac model of Aspen Plus used for conventional absorption–stripping column simulations. Under identical processing conditions, both models predicted similar results for the temperature, flow rate, and composition of the streams leaving the absorption and stripping units. Differences between the two models were most pronounced for liquid and gas temperature profiles, which were attributed to the different energy balance methods used in the two models, but the difference was not large enough (∼10 °C) to influence the mass transfer within the membrane contactor, as the composition and flow rate of leaving streams were almost identical to that of the RadFrac model. A process intensification factor analysis showed that membrane contactor technology could reduce the volume of equipment required by a magnitude of 44 to undertake the same carbon capture ratio as the conventional column process.
中文翻译：
用于碳捕获过程流程模拟的严格膜气体溶剂接触器模型
在 Aspen Custom Modeler (ACM) 中对基于速率的膜气体溶剂接触器模型进行编程，并与 Aspen Plus 软件套件连接，以实现碳捕获过程的流程图模拟。在使用不同组的实验室和中试工厂数据进行验证后，该模型的严格方法与用于传统吸收-汽提塔模拟的 Aspen Plus 商业 RadFrac 模型进行了检验。在相同的处理条件下，两个模型都预测了离开吸收和汽提单元的物流的温度、流速和成分相似的结果。两种模型之间的差异在液体和气体温度曲线上最为明显，这归因于两种模型中使用的不同能量平衡方法，但差异不足以（~10°C）影响膜接触器内的传质，因为离开流的组成和流速几乎与 RadFrac 模型相同。工艺强化因素分析表明，膜接触器技术可以将所需的设备体积减少 44 倍，以实现与传统柱工艺相同的碳捕获率。
更新日期：2022-06-23
中文翻译：
用于碳捕获过程流程模拟的严格膜气体溶剂接触器模型
在 Aspen Custom Modeler (ACM) 中对基于速率的膜气体溶剂接触器模型进行编程，并与 Aspen Plus 软件套件连接，以实现碳捕获过程的流程图模拟。在使用不同组的实验室和中试工厂数据进行验证后，该模型的严格方法与用于传统吸收-汽提塔模拟的 Aspen Plus 商业 RadFrac 模型进行了检验。在相同的处理条件下，两个模型都预测了离开吸收和汽提单元的物流的温度、流速和成分相似的结果。两种模型之间的差异在液体和气体温度曲线上最为明显，这归因于两种模型中使用的不同能量平衡方法，但差异不足以（~10°C）影响膜接触器内的传质，因为离开流的组成和流速几乎与 RadFrac 模型相同。工艺强化因素分析表明，膜接触器技术可以将所需的设备体积减少 44 倍，以实现与传统柱工艺相同的碳捕获率。
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