Climate Change Data Portal
DOI | 10.1021/acssuschemeng.8b06203 |
Direct CO2 Capture from Air using Poly(ethylenimine)-Loaded Polymer/Silica Fiber Sorbents | |
Sujan, Achintya R.; Pang, Simon H.; Zhu, Guanghui; Jones, Christopher W.; Liyely, Ryan P. | |
发表日期 | 2019 |
ISSN | 2168-0485 |
卷号 | 7期号:5页码:5264-5273 |
英文摘要 | Direct CO2 capture from atmospheric air is gaining increased attention as one of the most scalable negative carbon approaches available to tackle climate change if coupled with the sequestration of CO2 geologically. Furthermore, it can also provide CO2 for further utilization from a globally uniform source, which is especially advantageous for economies without natural sources of carbon-based feedstocks. Solid-supported amine-based materials are effective for direct air capture (DAC) due to their high CO2 uptakes and acceptable sorption kinetics at ambient temperature. In this work, we describe the application of polymer/silica fiber sorbents functionalized with a primary amine-rich polymer, poly(ethylenimine) (PEI), for DAC. Monolithic fiber sorbents composed of cellulose acetate and SiO2 are synthesized via the dry-jet, wet quench spinning technique. These fibers are then functionalized with PEI (M-w 800 Da) in a simple and scalable postspinning infusion step and tested for CO2 capture under pseudoequilibrium conditions as well as under breakthrough conditions. An investigation to study the effect of feed flow rate, adsorption temperature, and presence of moisture in the feed on the CO2 breakthrough performance of a densely packed fiber sorbent module is conducted to highlight the potential application of this class of structured contactors in direct air capture. The pressure drop of these contactors at high gas velocities is also evaluated. Finally, a vacuum-assisted desorption step is demonstrated for production of high-purity CO2 from both dry and humid ambient air mixtures. |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
来源期刊 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/94727 |
作者单位 | Georgia Inst Technol, Sch Chem & Biomol Engn, 311 Ferst Dr NW, Atlanta, GA 30332 USA |
推荐引用方式 GB/T 7714 | Sujan, Achintya R.,Pang, Simon H.,Zhu, Guanghui,et al. Direct CO2 Capture from Air using Poly(ethylenimine)-Loaded Polymer/Silica Fiber Sorbents[J],2019,7(5):5264-5273. |
APA | Sujan, Achintya R.,Pang, Simon H.,Zhu, Guanghui,Jones, Christopher W.,&Liyely, Ryan P..(2019).Direct CO2 Capture from Air using Poly(ethylenimine)-Loaded Polymer/Silica Fiber Sorbents.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(5),5264-5273. |
MLA | Sujan, Achintya R.,et al."Direct CO2 Capture from Air using Poly(ethylenimine)-Loaded Polymer/Silica Fiber Sorbents".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.5(2019):5264-5273. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。