SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (11): 2255-2265.DOI: 10.1016/j.cjche.2018.05.024

• Special issue of Carbon Capture, Utilisation and Storage • 上一篇    下一篇

Recent developments in aqueous ammonia-based post-combustion CO2 capture technologies

Hai Yu   

  1. CSIRO Energy, 10 Murray Dwyer Circuit, Mayfield West, NSW 2304, Australia
  • 收稿日期:2017-12-13 修回日期:2018-03-14 出版日期:2018-11-28 发布日期:2018-12-10
  • 通讯作者: Hai Yu

Recent developments in aqueous ammonia-based post-combustion CO2 capture technologies

Hai Yu   

  1. CSIRO Energy, 10 Murray Dwyer Circuit, Mayfield West, NSW 2304, Australia
  • Received:2017-12-13 Revised:2018-03-14 Online:2018-11-28 Published:2018-12-10
  • Contact: Hai Yu

摘要: Aqueous ammonia (NH3) is a promising alternative solvent for the capture of industrial CO2 emissions, given its high chemical stability and CO2 removal capacity, and low material costs and regeneration energy. NH3 also has potential for capturing multiple flue gas components, including NOx, SOx and CO2, and producing value-added chemicals. However, its high volatility and low reactivity towards CO2 limit its economic viability. Considerable efforts have been made to advance aqueous NH3-based post-combustion capture technologies in the last few years:in particular, General Electric's chilled NH3 process, CSIRO's mild-temperature aqueous NH3 process and SRI International's mixed-salts (NH3 and potassium carbonate) technology. Here, we review these research activities and other developments in the field, and outline future research needed to further improve aqueous NH3-based CO2 capture technologies.

关键词: Aqueous ammonia, NH3, Post-combustion capture, Ammonia loss, Regeneration energy, Amines

Abstract: Aqueous ammonia (NH3) is a promising alternative solvent for the capture of industrial CO2 emissions, given its high chemical stability and CO2 removal capacity, and low material costs and regeneration energy. NH3 also has potential for capturing multiple flue gas components, including NOx, SOx and CO2, and producing value-added chemicals. However, its high volatility and low reactivity towards CO2 limit its economic viability. Considerable efforts have been made to advance aqueous NH3-based post-combustion capture technologies in the last few years:in particular, General Electric's chilled NH3 process, CSIRO's mild-temperature aqueous NH3 process and SRI International's mixed-salts (NH3 and potassium carbonate) technology. Here, we review these research activities and other developments in the field, and outline future research needed to further improve aqueous NH3-based CO2 capture technologies.

Key words: Aqueous ammonia, NH3, Post-combustion capture, Ammonia loss, Regeneration energy, Amines