利用新型实验室装置评估阴离子交换树脂 Lewatit VPOC 1065 在直接空气捕获条件下的 CO2/H2O 协同吸附模型

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Florian M. Chimani, Aditya Anil Bhandari, Andreas Wallmüller, Gerhard Schöny, Stefan Müller, J. Fuchs
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引用次数: 0

摘要

本研究旨在开发一种实验室规模的直接空气捕集装置,用于评估和比较在真空变温吸附条件下的胺类吸附剂。利用直接空气捕获装置进行的实验活动可以确定所研究的吸附剂 Lewatit VP OC 1065® 的平衡负载、二氧化碳吸收能力和其他主要性能参数。调查还有助于了解测试材料对 CO2 和 H2O 的共吸附情况,这对改进真空变温吸附工艺至关重要。这是通过获得 CO2 和 H2O 的纯组分等温线以及使用文献中三种不同的共吸附等温线模型来实现的。研究发现,加权平均双位点托斯模型是模拟这种共吸附行为的最准确、最可靠的模型。它的预测结果与实验数据非常吻合,特别是在捕捉不同温度下的吸附平衡方面。研究还发现,在对所选胺进行吸附实验时,这种实验室规模的装置比热重分析法更具优势。这项研究的最终目的是为开发用于直接捕获空气的高效、经济吸附剂的测试和开发装置提供一条途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of CO2/H2O Co-Adsorption Models for the Anion Exchange Resin Lewatit VPOC 1065 under Direct Air Capture Conditions Using a Novel Lab Setup
This study aimed to develop a laboratory-scale direct air capture unit for evaluating and comparing amine-based adsorbents under temperature vacuum swing adsorption conditions. The experimental campaign conducted with the direct air capture unit allowed for the determination of equilibrium loading, CO2 uptake capacity, and other main performance parameters of the investigated adsorbent Lewatit VP OC 1065®. The investigations also helped to understand the co-adsorption of CO2 and H2O on the tested material, which is crucial for improving temperature vacuum swing adsorption processes. This was achieved by obtaining pure component isotherms for CO2 and H2O and using three different co-adsorption isotherm models from the literature. It was found that the weighted average dual-site Toth model emerged as the most accurate and reliable model for simulating this co-adsorption behaviour. Its predictions closely align with the experimental data, particularly in capturing the adsorption equilibrium at various temperatures. It was also observed that this lab-scale unit offers advantages over thermogravimetric analysis when conducting adsorption experiments on the chosen amine. The final aim of this study is to provide a pathway to develop devices for testing and developing efficient and cost-effective adsorbents for direct air capture.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
期刊介绍: ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.
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