Influence of water-film-forming-unit on the enhanced removal of carbon dioxide from mixed gas using water absorption apparatus

This research uses tap water to absorb carbon dioxide from mixed gas (N2 and CO2) in an absorption apparatus coupled with a water-film-forming-unit (WFFU). The objective is to assess the benefits of using a WFFU to enhance CO2 removal efficiency at low pressure conditions. Based on our results, the...

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Veröffentlicht in:Environmental technology. - 1993. - 41(2020), 7 vom: 30. März, Seite 852-862
1. Verfasser: Nguyen, Diem-Mai Kim (VerfasserIn)
Weitere Verfasser: Imai, Tsuyoshi, Aly, Shahira Said, Higuchi, Takaya, Kanno, Ariyo, Yamamoto, Koichi, Sekine, Masahiko
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Absorption Taguchi method carbon dioxide water-based removal process water-film-forming-unit Gases Water 059QF0KO0R Carbon Dioxide 142M471B3J
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520 |a This research uses tap water to absorb carbon dioxide from mixed gas (N2 and CO2) in an absorption apparatus coupled with a water-film-forming-unit (WFFU). The objective is to assess the benefits of using a WFFU to enhance CO2 removal efficiency at low pressure conditions. Based on our results, the WFFU significantly improves CO2 capture at 0.30 MPa in a water absorption system with two WFFUs. The CO2 removal efficiency was 20% greater than for systems without WFFUs. Moreover, statistical data attained by the Taguchi analysis method showed that the number of WFFUs used in the absorption system has the greatest influence on CO2 removal efficiency (contribution percentage = 50.65%) compared to gas pressure, initial CO2 concentration, gas-to-liquid ratio, and liquid temperature. We also thoroughly investigated the effects of these factors on CO2 removal performance. The optimum conditions for CO2 removal efficiency in a system equipped with two WFFUs are low temperature, low gas-to-liquid ratio, low gas pressure (0.25-0.30 MPa), and high inlet CO2 concentration. These findings could provide an effective method for capturing CO2 from exhaust gases, and thus help mitigate global warming 
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650 4 |a Absorption 
650 4 |a Taguchi method 
650 4 |a carbon dioxide 
650 4 |a water-based removal process 
650 4 |a water-film-forming-unit 
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650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
700 1 |a Imai, Tsuyoshi  |e verfasserin  |4 aut 
700 1 |a Aly, Shahira Said  |e verfasserin  |4 aut 
700 1 |a Higuchi, Takaya  |e verfasserin  |4 aut 
700 1 |a Kanno, Ariyo  |e verfasserin  |4 aut 
700 1 |a Yamamoto, Koichi  |e verfasserin  |4 aut 
700 1 |a Sekine, Masahiko  |e verfasserin  |4 aut 
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773 1 8 |g volume:41  |g year:2020  |g number:7  |g day:30  |g month:03  |g pages:852-862 
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