河北宁晋化肥厂尿素生产能力 8万ｔ/ａ,原设计配套采用的是碳丙脱碳工艺。长期以来 ,因脱碳后净化气ＣＯ2 含量偏高 ,一直困扰厂里生产 ,尤其是到夏季 ,因气温较高 ,净化气ＣＯ2 体积分数升到 1 .4%～ 1 .6% ,有时甚至在 1 .8%以上 ,严重威胁精炼系统正常运转。由于净化气ＣＯ2 Hebei Ningjin fertilizer plant urea production capacity of 80,000 t / a, the original design supporting the use of carbon propylene decarbonization process. For a long time, due to the high CO2 content of the purge gas after decarbonization, it has been troubling the factory production, especially in the summer, because of the higher temperature, the volume fraction of the purge gas CO2 rose to 1.4% ~ 1.6% 1.8% or more, a serious threat to the normal operation of the refining system. Because of purifying gas CO2