A new approach to the identification of high-potential materials for cost-efficient membrane-based post-combustion CO2 capture
A new approach to the identification of high-potential materials for cost-efficient membrane-based post-combustion CO2 capture
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DOI：
10.1039/c8se00039e
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发表时间：
2018-05
影响因子：
5.6
通讯作者：
Simon Roussanaly;R. Anantharaman;K. Lindqvist;Brede Hagen
中科院分区：
文献类型：
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作者：
Simon Roussanaly;R. Anantharaman;K. Lindqvist;Brede Hagen
开发“好”的膜组件和材料是降低膜基CO2捕获成本的关键一步。虽然传统上这是通过现有和新材料的增量开发来实现的，但本文提出了一种新方法来确定具有破坏性潜力的膜材料，以降低六种潜在工业和发电案例的二氧化碳捕获成本。对于每种情况下，这种方法首先确定所需的膜性能目标，以达到成本竞争力和几个成本降低水平相比，基于MEA的CO2捕获，通过广泛的可能的膜性能的评估。然后将这些性能目标与使用401种聚合物膜材料理论上可以实现的膜组件性能进行比较，以突出73种高潜力材料，一旦考虑到实际因素，膜开发专家可以使用这些材料来选择值得进一步开发的材料。除了确定个别材料之外，膜性能目标的范围还显示了基于膜的捕获在工业情况下的强大潜力，其中烟道气中的CO2含量大于11%，并且考虑CO2捕获率低于90%将显著提高基于膜的捕获的竞争力，并导致潜在的显著成本降低。最后，必须指出，这里讨论的方法适用于二氧化碳捕获以外的其他分离技术和应用，并有助于减少开发具有成本效益的技术所需的成本和时间。
Developing “good” membrane modules and materials is a key step towards reducing the cost of membrane-based CO2 capture. While this is traditionally being done through incremental development of existing and new materials, this paper presents a new approach to identify membrane materials with a disruptive potential to reduce the cost of CO2 capture for six potential industrial and power generation cases. For each case, this approach first identifies the membrane properties targets required to reach cost-competitiveness and several cost-reduction levels compared to MEA-based CO2 capture, through the evaluation of a wide range of possible membrane properties. These properties targets are then compared to membrane module properties which can be theoretically achieved using 401 polymeric membrane materials, in order to highlight 73 high-potential materials which could be used by membrane development experts to select materials worth pushing towards further development once practical considerations have been taken into account. Beyond the identification of individual materials, the ranges of membrane properties targets also show the strong potential of membrane-based capture for industrial cases in which the CO2 content in the flue gas is greater than 11%, and that considering CO2 capture ratios lower than 90% would significantly improve the competitiveness of membrane-based capture and lead to potentially significant cost reduction. Finally, it is important to note that the approach discussed here is applicable to other separation technologies and applications beyond CO2 capture, and could help reduce both the cost and time required to develop cost-effective technologies.