| 气-液-液-水合物多相平衡闪蒸的新算法 |
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| 引用本文： | 马庆兰,陈光进,孙长宇,郭天民.气-液-液-水合物多相平衡闪蒸的新算法[J].化工学报,2005,56(9):1599-1605. |
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| 作者姓名： | 马庆兰 陈光进 孙长宇 郭天民 |
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| 作者单位： | 中国石油大学（北京）流体高压相态及物性研究实验室， 北京 102249 |
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| 基金项目： | 国家自然科学基金项目（20490207,20176028,90210020）;霍英东教育基金项目（81064）. |
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| 摘 要： | 有水合物存在的多相闪蒸计算对于水合物法分离技术非常重要.提出了一个进行气-液-液-水合物四相闪蒸计算的新算法.其中气-液（富烃相）-液（富水相）三相平衡闪蒸计算采用Patel-Teja状态方程，Chen-Guo水合物模型用于气相与水合物相平衡的计算.此算法避免了求解复杂的方程组，因此使计算简单化.通过气体与纯水体系和有抑制剂体系的计算检验表明，此算法有很好的计算稳定性.
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| 关 键 词： | 水合物 Chen-Guo模型 多相闪蒸 算法 |
| 文章编号： | 0438-1157（2005）09-1599-07 |
| 收稿时间： | 09 6 2004 12:00AM |
| 修稿时间： | 2004-09-062005-01-14 |
New algorithm of vapor-liquid-liquid-hydrate multi-phase equilibrium flash calculation |
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| MA Qinglan,CHEN Guangjin,SUN Changyu,GUO Tianmin.New algorithm of vapor-liquid-liquid-hydrate multi-phase equilibrium flash calculation[J].Journal of Chemical Industry and Engineering(China),2005,56(9):1599-1605. |
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| Authors: | MA Qinglan CHEN Guangjin SUN Changyu GUO Tianmin |
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| Abstract: | In this work, a new algorithm for performing vapor-liquid-liquid-hydrate multi-flash calculation was developed.Patel-Teja equation of state was used in performing the vapor-liquid-liquid (V-L_HC-L_W) three-phase flash calculation and Chen-Guo two-step hydrate model was used for calculating the vapor-hydrate phase equilibria.This method was rather simple as it avoided the complexity of simultaneous solution of a sophisticated group of equations.The proposed algorithm was tested on gas-pure water systems, gas-aqueous solution of alcohol systems, gas-aqueous solution of salt systems and gas system containing no free water.The calculation results showed that the proposed algorithm was stable and effective. |
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| Keywords: | hydrate Chen-Guo model multi-phase flash algorithm |
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