基于离子交换的胺液净化技术在天然气脱碳系统的应用

来源 :天然气化工:C1化学与化工 | 被引量 : 0次 | 上传用户:qaz_wsx_123
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采用醇胺法的脱碳系统用于脱除天然气中高含的CO2,系统运行中发现溶液受到明显污染,热稳定盐含量增加、金属离子超标、设备存在一定程度的腐蚀现象。采用合适的阴离子树脂对胺液进行离子交换测试,确定了热稳定盐吸附、再生的最佳工艺条件,即吸附时间为60 min,流量为2 m3/h,再生液采用5%的NaOH溶液。胺液净化后,热稳定盐脱除率达78%,胺液颜色明显改善,同时胺液中铬离子含量也有一定程度的降低。
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