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乙二醇脱水工艺在大型高压天然气处理装置中的优化运行
  

摘要:大型高压天然气处理装置加纳天然气处理厂应用乙二醇脱水工艺,容易产生乙二醇再生系统设备腐蚀、乙二醇大量损耗、换热器冻堵等问题,从而导致管输商品气产品不合格和液化气LPG产品收率降低。本文将上述原因进行分析后,采用更换乙二醇再生塔填料、增加乙二醇过滤器滤芯更换频率、提高乙二醇再生温度、控制乙二醇pH值和调整乙二醇加注喷嘴角度的方法逐步解决了上述问题,使得商品气符合产品要求和液化气收率明显提高。

AbstractEthylene Glycol (EG) regeneration system is used for natural gas dehydration in large scale high pressure Ghana natural gas processing facility. There are some serious issues contributed to sales gas off specification and lower LPG recovery such as equipment corrosion, excessive consumption of EG and heat exchanger hydrates formation block in EG regeneration system. These issues have been not only analyzed in details but also gradually solved by changing the EG regeneration column packing, increasing the frequency of changing the EG filters, increasing the EG regeneration temperature, controlling the pH of EG and adjust the EG injection nozzle spray angle. And then the sales gas meets the specification and LPG recovery has been improved.



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