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高温高压下煤液化油气液平衡体系的研究 被引量:4

Vapor-liquid equilibrium of coal liquefied oil fractions under high temperature and high pressure
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摘要 煤液化过程中,反应单元和分离单元是整个液化体系的核心部分,反应器和分离器中各组分在气、液相中的平衡组成确定不仅决定设备的尺寸设计,而且对液化过程中供氢溶剂的选择和反应条件的优化起到关键作用。但由于煤液化油在高温高压下的气、液平衡数据不足,使得反应器内的组成分布无法预测,相关的反应器设计过程仅能凭经验进行。为得到反应条件下的气液平衡数据,研究引入流程模拟软件Aspen Plus,将煤液化油蒸馏得到的窄馏分段与各种气体组分(如H2、C2H6等)共同建立了煤液化油闪蒸过程,得到了高温高压下煤液化油气液平衡体系。利用闪蒸体系计算得到在给定温度、压力情况下,各组分在高温、低温分离器内的气、液两相分布情况,通过改变高温分离器的温度和压力,分析了高温分离器内相平衡常数随温度(623.15K~723.15K)、压力(10MPa~21MPa)变化的规律。为进一步归纳适用于煤液化油的气液平衡方程,以高温分离器数据为基础,对推导建立的高压下烃类相平衡方程中的参数进行回归,得到高温高压下,适用于神华煤液化油并具有物理意义的二元(T,p)气液相平衡常数方程。 In order to get the vapor-liquid equilibrium constants under the real liquefaction conditions, the data from the fractions of coal liquefied distillation oil and different gas, such as H2 and C2H6 , were combined together to establish the coal liquefied oil flash distillation system through the process simulation software Aspen Plus. By using the flash-distillation system, the vapor-liquid equilibrium composition and distribution were calculated at reaction temperature and pressure. Also the rules of equilibrium constant vary with the temperature (623.15K-723.15K) and pressure (10MPa -21 MPa) were explored. Furthermore, the parameters of deducing hydrocarbon equilibrium equation at high pressure were regressed. And the two variable vapor-liquid equilibrium equation specified for the Shenhua coal liquefied oil was established.
作者 杨春雪 冯杰
出处 《燃料化学学报》 EI CAS CSCD 北大核心 2009年第3期271-276,共6页 Journal of Fuel Chemistry and Technology
基金 国家重点基础研究发展规划(973计划 2004CB217602) 教育部新世纪优秀人才支持计划(NCET-06-0261) 教育部创新团队发展计划(IRT0517) 山西省回国留学人员基金(2006-29)
关键词 煤液化油 气液平衡常数 ASPEN PLUS coal liquefied distillation oil vapor-liquid equilibrium constant Aspen Plus
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参考文献11

  • 1TSONOPOULOS C, HEIDMAN J L, HWANG S-C. Thermodynamic and transport properties of coal liquids[ M ]. New York: John Wiley & Sons, Inc, 1986: 85-88.
  • 2DIGICINTO S S, YESAVAGE V F. Vapor-liquid equilibria for ternary mixtures of M-cresol/quinoline/tetralin at temperatures between 523 and 598 K[J]. J Chem Eng Data, 1993, 38(4): 551-553.
  • 3WILSON G M, JOHNSTON R H, HWANG S-C. Tsonopoulos constantine, volatility of coal liquid at high temperature and pressure[ J]. Ind Eng Chem Process Des Dev, 1981, 20( 1 ) : 94-104.
  • 4KABADI V N. Thermodynamics of coal-derived fluids: 3 vle and heat capacities of coal liquid fractions[ J ]. Fuel, 1996, 75 (3) : 363-372.
  • 5张玉卓.中国煤炭液化技术发展前景[J].煤炭科学技术,2006,34(1):19-22. 被引量:38
  • 6杨春雪,冯杰,徐英.神华煤液化油窄馏分的临界性质[J].燃料化学学报,2008,36(5):534-539. 被引量:8
  • 7Technology Aspen. Aspen plus physical property methods and models~ M~. USA: Aspen Technology, 2000.
  • 8LIN H-M, KIM H, GUO T, CHAO K-C. Equilibrium vaporization for a coal liquid from a Kentucky No. 9 coal[JJ. Ind Eng Chem Process Des Dev, 1985, 24(4) : 1049-1055.
  • 9LIN H-M, LEET W A, KIM H, CHAO K-C. Measurement and prediction of vapor-liquid equilibrium for an H-coal and an SRC coal liquid with and without hydrogen[J~, lnd Eng Chem Process Des Dev, 1985, 24(4) : 1225-1230.
  • 10郭天民,阎炜,濮云辉.多元汽-液平衡和蒸馏[M].北京:化学工业出版社,1983:310-311.

二级参考文献18

  • 1常丽萍.煤液化技术研究现状及其发展趋势[J].现代化工,2005,25(10):17-20. 被引量:17
  • 2王迎春,凌开成,申峻,张海军.神华煤液化油馏分密度的分析测定[J].煤炭转化,2006,29(2):24-27. 被引量:5
  • 3张海军,凌开成,申峻,盛清涛,王迎春.神华煤液化油黏度的测定与分析[J].煤炭转化,2006,29(3):40-43. 被引量:5
  • 4TSONOPOULOS C, HEIDMAN J L, HWANG S-C. Thermodynamic and transport properties of coal liquids[ M]. New York: John Wiley and Sons, 1986.
  • 5WILSON G M, JOHNSTON R H, HWANG S-C,TSONOPOULOS C. Volatility of coal liquids at high temperatures and pressures volatility[ J]. Ind Eng Chem Process Des Dev, 1981, 20( 1 ) : 94-104.
  • 6WATANASIRL S, OWENS V H, STARLING K E. Correlations for estimating critical constants, acentric factor and dipole moments for undefined coal-fluid fractions[J].Ind Eng Chem Process Des Dev, 1985, 24(2) : 294-296.
  • 7NEWMAN S A. Correlations evaluated for coal-tar liquids[J]. Hydrocarbon Process, 1981, 60(12) : 133-142.
  • 8RIAZI M R, DAUBERT T E. Simplify property predictions[J]. Hydrocarbon Process, 1980, 59(3) : 115-116.
  • 9Technology Aspen. Aspen plus physical property methods and models[ M]. USA: Aspen Technology, 2000, chapter 7: 3-4.
  • 10GB/T 13377-1992,原油和液体或固体石油产品密度或相对密度测定法(毛细管塞比重瓶和带刻度双毛细管比重瓶法)[S].

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