A polyethylenimine (PEI)-silica adsorbent-based true moving bed adsorption process with a heat integration scheme was investigated as an energy conservative CO₂ capture process. The process was configured using four separate beds with internal plate heat exchangers for adsorption, cooling, desorption and heating. An in-house steady-state simulator was constructed to analyze process behaviors, which focused on the energy demand and bed size under various operating conditions. A recently developed amine-functionalized adsorbent, 0.37EB-PEI, which uses silica fume as a support, was utilized in the process.

中文翻译：

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基于PEI硅胶吸附剂的移动床吸附工艺用于CO ₂捕集

以聚乙烯亚胺（PEI）-二氧化硅吸附剂为基础的具有热集成方案的真移动床吸附过程作为能量守恒的CO ₂捕获过程进行了研究。该工艺使用四个带有内部板式热交换器的独立床进行配置，以进行吸附，冷却，解吸和加热。构建了一个内部稳态模拟器来分析过程行为，该过程行为侧重于各种操作条件下的能量需求和床的尺寸。该工艺中使用了最近开发的胺官能化吸附剂0.37EB-PEI，该吸附剂使用了硅粉作为载体。