An ammonia separator is added, and the byproduct low-pressure steam from the shift section is used to heat and decompose the ammonium salt and ammonia is stripped, resulting in the effective elimination of crystallization of the ammonium salt.

• 增设氨分离装置，利用变换工序副产的低压蒸汽加热分解铵盐并汽提氨，可以有效解决铵盐结晶问题。