使用双极电极堆叠扩大超级电容式变压吸附法捕集一氧化碳的规模。

Scaling Supercapacitive Swing Adsorption of CO Using Bipolar Electrode Stacks.

作者信息

Li Jiajie, Bilal Muhammad, Landskron Kai

机构信息

Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, PA, 18015, USA.

出版信息

Small. 2024 Aug;20(34):e2303243. doi: 10.1002/smll.202303243. Epub 2024 Apr 11.

DOI:10.1002/smll.202303243

PMID:38600877

Abstract

Supercapacitive swing adsorption (SSA) modules with bipolar stacks having 2, 4, 8, and 12 electrode pairs made from BPL 4 × 6 activated carbon are constructed and tested for carbon dioxide capture applications. Tests are performed with simulated flue gas (15%CO /85%N) at 2, 4, 8, and 12 V, respectively. Reversible adsorption with sorption capacities (≈58 mmol kg) and adsorption rates (≈38 µmol kg s) are measured for all stacks. The productivity scales with the number of cells in the module, and increases from 70 to 390 mmol h m. The energy efficiency and energy consumption improve with increasing number of bipolar electrodes from 67% to 84%, and 142 to 60 kJ mol, respectively. Overall, the results show that SSA modules with bipolar electrodes can be scaled without reducing the adsorptive performance, and with improvement of energetic performance.

摘要

构建了具有由BPL 4×6活性炭制成的2、4、8和12个电极对的双极堆叠的超级电容式变压吸附（SSA）模块，并对其进行了二氧化碳捕获应用测试。分别在2、4、8和12 V下用模拟烟道气（15%CO₂/85%N₂）进行测试。测量了所有堆叠的具有吸附容量（≈58 mmol kg⁻¹）和吸附速率（≈38 µmol kg⁻¹ s⁻¹）的可逆吸附。生产率随模块中的电池数量而变化，从70增加到390 mmol h⁻¹ m⁻²。能量效率和能耗分别随着双极电极数量的增加从67%提高到84%，以及从142降低到60 kJ mol⁻¹。总体而言，结果表明具有双极电极的SSA模块可以在不降低吸附性能的情况下进行扩展，并且能量性能有所提高。