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<p>The inorganic ammonia carbon capture and co-production of ammonium fertilizer provides a good idea for low carbon production in coal-fired power plants. The integration of capture and utilization is expected to solve the problems of high energy consumption, high operating cost, and difficult utilization. In this paper, theories, product transformation, and application of the inorganic ammonia carbon capture are discussed, and the problems, such as low efficiency and serious NH<sub>3</sub> escape are summarized. The mass transfer kinetics is the common method to solve the above problems. Therefore, this paper summarizes the mass transfer kinetics model from three progressive levels, and focuses on the ‘mass transfer + reaction kinetics with the features of inorganic ammonia carbon capture’ theories and research methods of CO<sub>2</sub> absorption and NH<sub>3</sub> escape/absorption. Further, the relationship between the model and the design of the inorganic ammonia carbon capture system is established. The prediction of flux has been put forward based on the theory and research method of mass transfer kinetics model. The way of screening inhibitors or absorbents is proposed based on two principles of inhibiting NH<sub>3</sub> escape. Finally, the challenges and prospects of the inorganic ammonia carbon capture are mentioned, and the future trend of power plant centered on NH<sub>3</sub> is discussed.</p>

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Application and kinetics of inorganic ammonia carbon capture: current status, theory, and perspectives

  • 期刊论文

  • 发表日期：

    2026年2月6日

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  • Shuaijun Fan,
  • Jun Jia,
  • Jialin Chen,
  • Wentong Chen,
  • Jingxiang Ma,
  • Shuangchen Ma

摘要

The inorganic ammonia carbon capture and co-production of ammonium fertilizer provides a good idea for low carbon production in coal-fired power plants. The integration of capture and utilization is expected to solve the problems of high energy consumption, high operating cost, and difficult utilization. In this paper, theories, product transformation, and application of the inorganic ammonia carbon capture are discussed, and the problems, such as low efficiency and serious NH3 escape are summarized. The mass transfer kinetics is the common method to solve the above problems. Therefore, this paper summarizes the mass transfer kinetics model from three progressive levels, and focuses on the ‘mass transfer + reaction kinetics with the features of inorganic ammonia carbon capture’ theories and research methods of CO2 absorption and NH3 escape/absorption. Further, the relationship between the model and the design of the inorganic ammonia carbon capture system is established. The prediction of flux has been put forward based on the theory and research method of mass transfer kinetics model. The way of screening inhibitors or absorbents is proposed based on two principles of inhibiting NH3 escape. Finally, the challenges and prospects of the inorganic ammonia carbon capture are mentioned, and the future trend of power plant centered on NH3 is discussed.