
文章简介
油田脱烃采出气回收减排工艺研究
摘 要:在石油开采行业中,富含CO2的油田采出气一直是人们难以利用的资源,大部分油田对其采取直接排放或燃烧的处理方式。针对上述问题,为了有效利用资源,减少排放,提出了压缩冷凝与膜分离耦合回收CO2和烃组分,并将其用于某大型油田采出气中,同时利用Aspen HYSYS模拟软件,对压缩冷凝与膜分离耦合回收工艺流程进行模拟优化。结果表明:在冷凝压力为2.0 MPa条件下,制冷温度-24℃,膜面积399 m2,压缩机总功率250 kW,CO2回收率为81.56%,烃组分回收率为97.10%,设备投资约2.79×106 CNY,公用工程费约为1.29×106 CNY/a,年经济效益约为9.47×106
CNY。
Abstract:In
the oil production industry, CO2 rich oilfield produced gas has
always been a difficult resource for people to use, and most of the oil fields
adopt direct emission or combustion treatment. In view of the above problems,
in order to effectively utilize resources and reduce emissions, the coupling of
compression condensation and membrane separation was proposed to recover CO2
and hydrocarbon components, which was used in the produced gas of a large oil
field. At the same time, Aspen HYSYS simulation software was used to simulate
and optimize the coupling process of compression condensation and membrane
separation. The results show that: under the condition of condensation pressure
of 2.0 MPa, refrigeration temperature of -24℃,membrane
area of 399 m2, total compressor power of 250 kW, CO2
recovery rate of 81.56%, hydrocarbon recovery rate of 97.10%, equipment
investment of about 2.79×106 CNY, utility cost of about 1.29×106 CNY/a, annual economic benefit of about 9.47×106 CNY.
Keywords: Oilfield Produced Gas;Membrane Separation;Compression Condensation;Carbon Dioxide;Simulation Optimization
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