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利用可视化高压流体测试装置在0.78~5.17 MPa压力范围内测定了乙二醇水溶液中合成天然气(甲烷、乙烷和丙烷的混合物)水合物的形成条件。根据vanderWaals-Platteeuw的理想溶液等温吸附理论和Moshfeghian-Maddocd的数学模型,给出了含抑制剂体系气体水合物相平衡计算数学模型。计算结果表明该模型可较好地预测含抑制剂(乙二醇)体系的水合物形成条件。
The conditions for the formation of hydrate of synthetic natural gas (mixture of methane, ethane and propane) in ethylene glycol aqueous solution were measured in the pressure range of 0.78 ~ 5.17 MPa by using the visual high pressure fluid testing device. Based on the van der Waals-Platteeuw ideal solution isothermal adsorption theory and the mathematical model of Moshfeghian-Maddocd, mathematical models of gas hydrate phase equilibrium with inhibitor system are given. The results show that the model can predict the formation of hydrate containing inhibitor (ethylene glycol) system well.