改良热钾碱法Improved hot potassium alkali method：（）

吸收剂:20～35％的碳酸钾溶液中加入烷基酸胺和硼酸盐活化剂。Absorbent: add alkyl amine and borate activator to 20 ~ 35% potassium carbonate solution.

脱酸气情况：适用于含酸气8％以上，CO2/H2S高的天然气净化，压力对操作影响较大，吸收压力不宜低于20kg/cm2。Deacidification gas: it is suitable for the purification of natural gas containing more than 8% acid gas and high CO2/H2S. The pressure has a great influence on the operation, and the absorption pressure should not be less than 20kg/cm2.

应用：合成氨厂用此法脱CO2。Application: this method is used to remove CO2 in synthetic ammonia plant.

以上都不对