Selexol脱碳工艺的参数优化及适应性研究
Optimization of Parameters in Selexol Decarburization Process and Its Adaptability Research
浏览(3558) 下载(3)
- 引用格式:
-
张哲,皮艳慧,陈思锭.Selexol脱碳工艺的参数优化及适应性研究[J].天然气与石油,2013,31(2):0.doi:
.Optimization of Parameters in Selexol Decarburization Process and Its Adaptability Research[J].Natural Gas and Oil,2013,31(2):0.doi:
- DOI:
- 作者:
- 张 哲1 皮艳慧2 陈思锭2
- 作者单位:
- 1.中国石油规划总院，2.西南石油大学油气藏地质及开发工程国家重点实验室
- 关键词:
- 高含碳天然气；Selexol；脱碳；优化；适应性
Natural gas with high content of carbon； Selexol； Decarburization； Optimization； Applicability
- 摘要:
- 在高含碳、微含H2S的特殊天然气气藏中，Selexol脱碳工艺因其溶剂绿色环保、腐蚀性小而备受关注。利用HYSYS 2006软件优化Selexol脱碳工艺的吸收塔控制参数以及闪蒸再生条件，进一步体现了Selexol脱碳工艺的适应性。优化结果表明：吸收塔操作条件为原料气入塔温度-5～5 ℃，贫液注入量约750 m3/h，注入温度越低越佳，实际运行中不得低于-18 ℃。闪蒸再生时，优化的三级压力分别为2 400、500和50 kPa。Selexol脱碳工艺适用于CO2含量在60 %以下，C4 +重烃小于1 %（φ）的贫天然气脱碳处理。
For special natural gas reservoirs with high carbon and micro H2S， more and more attention has been paid to Selexol decarburization process due to less its corrosivity. Adopted is the software HYSYS 2006 to optimize absorber control parameters and flash regeneration conditions of the Selexol decarburization process and reflected further is adaptability of the process. Research results show that the lower of injection temperature the better when the absorption tower operating condition is the feed gas temperature at the tower inlet： -5 to 5℃ and lean liquid injection rate is about 750 m3/h but the temperature shall not be below -18℃ in actual operation. The optimized pressures at 3 stages are 2400， 500， and 50 kPa respectively during flash regeneration. The Selexol decarburization process is be suitable for decarburization treatment of lean gas with CO2 content less than 60 % and C4+ heavy hydrocarbon less than 1 % （α）.
