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本文将前文提出的热力学模型扩展到多元体系的汽液平衡计算。对九个多元体系的汽液平衡进行了预测,计算值与文献值有良好的一致性.另外,用求取的二元交互作用参数,对两种天然气-水体系的汽液平衡进行了预测,泡点压力的平均相对偏差小于9.0%,天然气在水中溶解度的平均相对偏差小于8.5%。取得了非常令人满意的结果. 相似文献
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通用立方型状态方程汽液平衡计算工具软件包──VLE-TOLPAK楚纪正,左有祥,郭天民(石油大学化工系北京100083)基于立方型状态方程的汽液平衡计算是诸多大型应用软件的基础和核心,如化工与炼油中精馏分离计算、油气田开发工程中地层流体动态的数值模拟... 相似文献
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EQUATION OF STATE BASED HYDRATE MODEL FOR NATURAL GAS SYSTEMS CONTAINING BRINE AND POLAR INHIBITOR 下载免费PDF全文
1 INTRODUCTIONIn the past two decades,as large reserves of hydrocarbons were discovered in the formof natural gas hydrates stored in deep oceans and permafrost regions such reserves mayturn out to become a tremendous energy source in the future.Among the challengingproblems emerged from offshore oil/gas exploration and production,hydrate research re-ceived new impetus. 相似文献
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将PT状态方程应用至高压电解质体系 总被引:2,自引:0,他引:2
基于作者提出的求离子组分模型参数的方法,本文直接将Patel-Teja状态方程扩展应用到高压电解质体系.盐-水对的交互作用参数由回归渗透系数数据确定;气体-水对及气体-盐对的交互作用参数通过对二元与三元VLE数据的回归获得.对气体和气体混合物在水及盐水中的溶解度预测结果表明,本文的处理方法是相当成功的. 相似文献
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EQQUATION OF STATE BASED HYDRATE MODEL FOR NATURAL GAS SYSTEMS CONTAINING BRINE AND POLAR INHIBITOR 下载免费PDF全文
A new thermodynamic model for gas hydrates was established by combining the modified Patel-Teja equation of state proposed for aqueous electrolyte systems and the simplified Holder -John multi -shell hydrate model. The new hydrate model is capable of predicting the hydrate formation/dissociation conditions of natural gas systems containing pure water/formation water (brine) and polar inhibitor without using activity coefficient model. Extensive test results indicate very encouraging results. 相似文献
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