文档介绍：Selexol脱碳工艺的参数优化及适应性研究
张哲1 皮艳慧2 陈思锭2
( 100083; 610500)
摘要:对于高含碳、微含H2S的特殊天然气气藏,Selexol脱碳工艺因其溶剂绿色环保、腐蚀性小而受到了越来越多的关注与研究。利用HYSYS 2006软件优化Selexol工艺的吸收塔控制参数以及闪蒸再生条件,进一步体现Selexol工艺的适应性。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750m3/h左右,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2400kPa、500kPa和50kPa。Selexol工艺适用于CO2含量在60%以下,C4+重烃小于1%(V)的贫天然气脱碳处理。
关键词: 高含碳天然气,Selexol,脱碳,优化,适应性
文献标识码:A
The Process Parameter Optimization and Adaptive Research of Selexol decarburization
Zhang Zhe1,Pi Yanhui2,Chen Siding2
( Planning & Engineering Institute, Beijing, 100083; State Key Laboratory of Southwest Petroleum University, Chengdu, 610500)
Abstract: In view of special gas reservoirs of high carbon and micro containing of H2S, Selexol decarburization process has been subjected to more and more attention and research for its green solvent and less corrosive. The absorber control parameters of Selexol process as well as the flash regeneration conditions were optimized by the HYSYS 2006 software, thus further reflected the adaptability of Selexol process. The results show that the absorption tower operating conditions is that temperature of feed gas into the tower is -5 to 5 °C , poor liquid injection rate is about 750m3 / h , the lower of injection temperature the better, injection temperature in the actual operation shall not be lower than -18° respectively optimiz