| PSRK-UNIFAC模型在预测煤直接液化高温高压气液相平衡中的应用 |
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| 引用本文： | 毛学锋.PSRK-UNIFAC模型在预测煤直接液化高温高压气液相平衡中的应用[J].洁净煤技术,2012(3):53-58. |
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| 作者姓名： | 毛学锋 |
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| 作者单位： | [1]煤炭科学研究总院北京煤化工研究分院,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室（煤炭科学研究总院）,北京100013 |
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| 基金项目： | 国家重点基础研究发展计划（973计划）（2004CB217604） |
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| 摘 要： | 为预测煤炭直接液化高温高压气液平衡,将过量吉布斯自由能混合规则和UNIFAC活度系数模型与SRK状态相结合,建立基团状态PSRK-UNIFAC模型。利用该模型对煤液化高温分离器的24种组分气液相平衡进行了预测和关联,计算值和文献值能取得较好一致,并推算了煤液化反应器内气液相组成。结果表明:PSRK-UNIFAC模型可以成功预测高温、高压、强不对称、强极性下的气液相平衡。
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| 关 键 词： | 煤炭直接液化 高温高压气液相平衡 PSRK-UNIFAC模型 强极性 |
Application of PSRK-UNIFAC model in vapor-liquid equilibria prediction under high temperatures and pressures during coal direct liquefaction |
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| MAO Xue-feng.Application of PSRK-UNIFAC model in vapor-liquid equilibria prediction under high temperatures and pressures during coal direct liquefaction[J].Clean Coal Technology,2012(3):53-58. |
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| Authors: | MAO Xue-feng |
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| Affiliation: | MAO Xue-feng1＇2 ( 1. Beijing Research Institute of Coal Chemistry, China Coal Research Institute ,Belting 100013, China ; 2. State Key Laboratory of High Efficient Mining and Clean Utilization of Coal Resources ( China Coal Research Institute) ,Beijing 100013, China) |
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| Abstract: | State a group of contribution equation of state, PSRK-UNIFAC, which is obtained by combining the excess Gibbs free energy mixing rule, the UNIFAC model and SRK equation of state. The PSRK-UNIFAC equation of state serves to predict and associate the vapor-liquid equilibria of twenty-four components of high temperature separator during coal direct liquefaction, also calculate the components of vapor-liquid. The results show that, the calculated value is constant with the literature value and the PSRK-UNIFAC equation of state could predict the vapor-liquid equilibria under high temperature, high pressure, strong asymmetric and polar situation. |
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| Keywords: | coal direct liquefaction vapor-liquid equilibria under high temperatures and pressures PSRK-UNIFAC model strong polar |
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