Scale-up of amine-containing thin-film composite membranes for CO2 capture from flue gas
| Autor: | Dongzhu Wu, Lin Zhao, Varun Vakharia, Yuanxin Chen, Yang Han, Witopo Salim, W. S. Winston Ho |
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| Rok vydání: | 2018 |
| Předmět: |
Flue gas
Fabrication Materials science Facilitated diffusion Filtration and Separation 02 engineering and technology Permeance 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences Membrane technology Membrane Chemical engineering Thin-film composite membrane General Materials Science Amine gas treating Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Membrane Science. 555:379-387 |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/j.memsci.2018.03.074 |
| Popis: | Membrane technology is a cost-effective and energy-efficient separation process for CO2 removal from flue gas. Recently, there have been remarkable advances in the development of polyvinylamine (PVAm)/piperazine glycinate (PG)-containing facilitated transport membranes for CO2 removal. The advanced PVAm/PG-containing membranes have demonstrated desirably high CO2/N2 selectivity of greater than 140 and good CO2 permeance of > 700 GPU (1 GPU = 10−6 cm3 (STP)/(s cm2 cmHg)) at the typical flue gas temperature of 57 °C. This work investigated the scale-up fabrication of the PVAm/PG-containing membranes and demonstrated it successfully. Effective and efficient continuous fabrication of the membranes in a roll-to-roll manner was developed using the thin-film coating (TFC) assembly of the pilot-scale machine at Ohio State. The design of the TFC assembly was improved and several operating parameters were optimized for the fabrication with desirable membrane thickness and gas transport performance. A total of > 2000 feet long and 14-in. wide membranes with a selective layer thickness of |
| Databáze: | OpenAIRE |
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