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合成氨系统停车后氧含量升高的原因分析

Analysis of Causes for Increase in Oxygen Content after Shut-down of Ammonia System
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摘要 介绍了合成氨系统短期(在8 h以内)停车检修后再开车时煤气系统存在的氧含量高的问题,并从循环洗涤水中的解吸氧、气化炉开车时下吹煤气管道内的填充空气、清理洗气箱过程带入的空气、煤气总管温度降低后易形成负压而吸入的空气4个方面进行原因分析、计算和论证。提出了解决合成氨系统停车及开车时氧含量高的措施,并在实际生产中得到了充分的证明和体现,解决了合成氨系统停车检修后开停车过程因氧含量升高的问题。 A description is given of the high oxygen content in the gas system on restart-up after a short period (less than 8 h) of shut-down for maintenance of the ammonia plant. An analysis of the causes from four sources is carried out: the desorbed oxygen from the circulating washings, the filler air in the down-blow gas pipe during gasifier start-up, the air brought in during cleaning the gas- washing box, and the air sucked in by the negative pressure formed easily after a decrease in the temperature of the gas main pipe, and they are calcucated and demonstrated. Measures are proposed for lowering the high oxygen content in the ammonia plant during shut-down and start-up, and they have been proved and reflected fully in actual production, thereby solving the problem of an increase in oxygen content in start-up and shut-down after a shut-down for maintenance of the ammonia plant.
作者 余士良
出处 《化肥工业》 CAS 2011年第5期56-60,66,共6页 Chemical Fertilizer Industry
关键词 合成氨 开停车 氧含量 原因 措施 ammonia start-up and shut-down oxygen content causes measures
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参考文献3

  • 1谭天恩 麦本熙 丁惠华.化工原理[M].北京:化学工业出版社,1990..
  • 2天津大学物理化学教研室.物理化学.[M].第二版.天津:高等教育出版社,1982.
  • 3李永恒,肖席珍,陆克勇,等.造气技术问答[G].上海:化工部上海化工研究院,化工部化肥工业科技情报中心站,1993.

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