天然气脱汞新技术
New Technologies of Mercury Removal from Natural Gas
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- 引用格式:
-
熊光德,汤晓勇.天然气脱汞新技术[J].天然气与石油,2011,29(5):0.doi:
.New Technologies of Mercury Removal from Natural Gas[J].Natural Gas and Oil,2011,29(5):0.doi:
- DOI:
- 作者:
- 熊光德 汤晓勇
- 作者单位:
- 中国石油集团工程设计有限责任公司西南分公司
- 关键词:
- 天然气；脱汞；分子筛；固定床；吸附剂
Natural gas；Mercury removal；Molecular sieve；Fixed?鄄bed；Adsorbent
- 摘要:
- 天然气处理厂、液化天然气设施和注氮装置的介质中通常都含有不同程度的汞，会严重损坏工艺设备，甚至危及操作人员的健康和安全、污染环境。为了尽可能减少汞对设备的腐蚀，有必要更多地认识和了解其腐蚀机理。脱除介质中的汞，是减少腐蚀、降低操作风险的有效途径。采用已开发的可再生分子筛、不可再生的固定床吸附剂等脱汞技术，可有效脱除天然气中的汞。这种技术还可大大降低操作成本，延长设备的使用寿命，确保气体处理设施中的低温设备免受汞的腐蚀，减少汞对周围环境的污染。
Media of natural gas treatment plants，liquefied natural gas（LNG）facilities and nitrogen?鄄injection units generally contain different levels of mercury which will seriously damage process equipment，even endanger operators’ health and safety and result in serious environmental pollution. In order to minimize corrosion of mercury on equipment，it is necessary to know and understand more its corrosion mechanism. Removal of mercury from media is an effective way to reduce corrosion and operation risk of gas treatment equipment. Such developed mercury removal technologies as regenerable molecular sieve and non?鄄regenerable fixed?鄄bed adsorbent can be adopted to effectively remove mercury from feed gas，greatly reduce operation costs，prolong service life of equipment，significantly relieve corrosion of mercury on cryogenic equipment in gas processing facilities and reduce its pollution on the environment.
