CO2 Capture by Temperature Swing Adsorption: Use of Hot CO2-Rich Gas for Regeneration
| Autor: | Paul A. Webley, Yuchun Zhai, Augustine Ntiamoah, Jianghua Ling, Penny Xiao |
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| Rok vydání: | 2016 |
| Předmět: |
Flue gas
Power station Chemistry General Chemical Engineering Analytical chemistry 02 engineering and technology General Chemistry Swing 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Purge Industrial and Manufacturing Engineering 0104 chemical sciences Adsorption Experimental system Scientific method 0210 nano-technology Zeolite |
| Zdroj: | Industrial & Engineering Chemistry Research. 55:703-713 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.5b01384 |
| Popis: | Temperature swing adsorption (TSA) is an attractive technology for CO2 removal from gas streams. CO2 capture by a TSA process in which the recovered CO2 product is heated and used as regeneration purge gas has been examined. Our study is based on cyclic experiments performed on a single adsorption column packed with the commercially available zeolite NaUSY adsorbent. The commercial Aspen adsorption simulator was used to simulate the experimental system, where the model predictions agreed quite well with experimental results in terms of breakthrough and results for cycle designs based on indirect heating followed by hot product gas purge. The validated model was used to simulate the case of regeneration using only hot product gas purge, which was difficult to examine experimentally due to constraints of the experimental system used. With a three-step cycle of (1) adsorption, (2) hot gas purge, and (3) cooling, this case yielded product purities of >91% CO2 and maximum recoveries of 55.5, 76.2, and 83.6% at... |
| Databáze: | OpenAIRE |
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