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Experimental studies on suppression of ammonia vaporization by additives

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  • Jingwen Yu
  • Shujuan Wang
  • Hai Yu

Abstract

Aqueous ammonia (NH 3 ) based CO 2 capture process has been regarded as a promising technology to capture CO 2 from many industrial sources including coal‐fired power stations. However, this technology has been limited by the high volatility of ammonia and its relatively low reaction rate with carbon dioxide. This study selected nine kinds of chemicals and added them into ammonia solution as additives to investigate their potential to suppress ammonia vaporization. A wetted‐wall column reactor was used to study the effect of additives on ammonia loss rate and overall gas mass transfer coefficient of CO 2 at the absorption temperature of 15°C and solution of 3 M (mol/L) aqueous ammonia. Among all additives tested, Sulfolane (TMS) and Propylene carbonate (PC) showed the highest potential to suppress ammonia vaporization and enhance the reaction at the same time. The best scenario in this study was the addition of 0.3 M PC to 3 M aqueous ammonia under the CO 2 loading of 0.4 which led to a reduction of ammonia loss by 38% and an increase of overall gas mass transfer coefficient by 10% compared to the case of no additive. © 2013 Society of Chemical Industry and John Wiley & Sons, Ltd

Suggested Citation

  • Jingwen Yu & Shujuan Wang & Hai Yu, 2013. "Experimental studies on suppression of ammonia vaporization by additives," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 3(5), pages 415-422, October.
    • Handle: RePEc:wly:greenh:v:3:y:2013:i:5:p:415-422
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    File URL: http://hdl.handle.net/10.1002/ghg.1371
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    Cited by:

    1. Qi, Guojie & Wang, Shujuan, 2017. "Experimental study and rate-based modeling on combined CO2 and SO2 absorption using aqueous NH3 in packed column," Applied Energy, Elsevier, vol. 206(C), pages 1532-1543.
    2. Wang, Fu & Zhao, Jun & Miao, He & Zhao, Jiapei & Zhang, Houcheng & Yuan, Jinliang & Yan, Jinyue, 2018. "Current status and challenges of the ammonia escape inhibition technologies in ammonia-based CO2 capture process," Applied Energy, Elsevier, vol. 230(C), pages 734-749.
    3. Wang, Fu & Zhao, Jun & Zhang, Houcheng & Miao, He & Zhao, Jiapei & Wang, Jiatang & Yuan, Jinliang & Yan, Jinyue, 2018. "Efficiency evaluation of a coal-fired power plant integrated with chilled ammonia process using an absorption refrigerator," Applied Energy, Elsevier, vol. 230(C), pages 267-276.
    4. He, Gang & Zhang, Hongliang & Xu, Yuan & Lu, Xi, 2017. "China’s clean power transition: Current status and future prospect," Resources, Conservation & Recycling, Elsevier, vol. 121(C), pages 3-10.
    5. Yifang Liu & Fengming Chu & Lijun Yang & Xiaoze Du & Yongping Yang, 2018. "CO2 absorption characteristics in a random packed column with various geometric structures and working conditions," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 8(1), pages 120-132, February.
    6. Hai Yu & Nan Yang & Marcel Maeder & Paul Feron, 2018. "Kinetics of the reversible reaction of CO2(aq) with taurate in aqueous solution," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 8(4), pages 672-685, August.

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