|
|
- 2016
邻二甲苯、间二甲苯和对二甲苯表面张力的实验研究
|
Abstract:
为了获得二甲苯异构体邻二甲苯、间二甲苯和对二甲苯的表面张力参数,补充现有数据不足,为其作为化工合成原料、汽油及替代燃料添加剂等工程应用提供技术支持,建立了悬滴法实验系统,利用正庚烷检验其精确性和可靠性,并对邻二甲苯、间二甲苯和对二甲苯在303.15～393.15 K温度范围内的表面张力进行了实验研究,得到了57组实验数据。利用得到的实验数据,拟合得到了邻二甲苯、间二甲苯和对二甲苯的表面张力计算方程。表面张力计算方程计算值和实验数据之间的绝对偏差在±0.1 mN？m－1以内。所获得的表面张力实验数据和计算方程,可为邻二甲苯、间二甲苯和对二甲苯的工程应用提供基础热物性数据。
The xylene isomers (o？？xylene, m？？xylene and p？？xylene) have been widely used as the raw materials to synthesize of many organic compounds in petrochemical industry and the additives in the gasoline and alternative fuels. The pendant drop method experimental setup was developed and the pure heptane was measured to test the accuracy and the reliability of the setup. To obtain their surface tension and remedy the shortage of the existing data, the o-xylene, m-xylene and p？？xylene were measured in the temperature range from 303.15 to 393.15 K and 57 groups of the experimental data were obtained in the present work. These experimental data were used to fit the equations of the surface tension. The absolute deviation between the calculated surface tension from the correlation equation and the experiment results is within ±0.1 mN？m－1. The experimental data and calculated equations obtained in this paper can provide the basic thermal physical data for the engineering application of o-xylene, m-xylene and p-xylene
| [1] | ［8］YANG Y Y, ZHU Y M, PENG J L, et al. Excess thermodynamic functions derived from densities and surface tensions of (p？？or o？？xylene plus ethylene glycol dimethyl ether) between the temperatures (298？？15 and 308？？15) K ［J］. Journal of Chemical Thermodynamics, 2009, 41(9): 1000？？1006. |
| [2] | ［15］LEMMON E W, HUBER M L, MCLINDEN M O. NIST reference fluid thermodynamic and transport properties: REFPROP, NIST standard reference database23 ［DB］. Version 9？？0. Boulder, USA: National Institute of Standard and Technology, 2010. |
| [3] | ［17］MOHSEN？？NIA M, RASA H, NAGHIBI S F. Experimental and theoretical study of surface tension of n？？pentane, n？？heptane, and some of their mixtures at different temperatures ［J］. Journal of Chemical Thermodynamics, 2010, 42(1): 110？？113. |
| [4] | ［18］MOHSEN？？NIA M. Measurement and modelling of surface tensions of systems containing n？？hexadecane, n？？heptane and n？？pentane ［J］. Physics and Chemistry of Liquids, 2011, 49(5): 608？？614. |
| [5] | ［1］RODRIGUES W L, MATTEDI S, ABREU J C N. Vapor？？liquid equilibria data for binary systems of ethylbenzene plus xylene isomers at 100？？65 kPa ［J］. Journal of Chemical and Engineering Data, 2005, 50(4): 1134？？1138. |
| [6] | ［3］SHEN H？？P S, OEHLSCHLAEGER M A. The autoignition of C8H10 aromatics at moderate temperatures and elevated pressures ［J］. Combustion and Flame, 2009, 156(5): 1053？？1062. |
| [7] | ［4］DONALDSON R E, QUAYLE O R. A study of organic parachors. X. parachors of American petroleum institute？？national bureau of standards hydrocarbons: benzene and homologs of benzene ［J］. Journal of the American Chemical Society, 1950, 72(1): 35？？36. |
| [8] | ［5］OUYANG G F, YANG Y Y, LU S S, et al. Excess molar volumes and surface tensions of xylene with acetone or 2？？butanone at 298？？15 K ［J］. Journal of Chemical and Engineering Data, 2004, 49(2): 330？？332. |
| [9] | ［12］GAYOL A, CASAS L M, ANDREATTA A E, et al. Surface tension of dialkyl carbonates plus (alkanes or1, 4？？dimethylbenzene) and 1, 4？？dimethylbenzene plus alkanes binary mixtures at T=308？？15 K ［J］. Journal of Chemical and Engineering Data, 2013, 58(3): 758？？763. |
| [10] | ［13］KAHL H, WADEWITZ T, WINKELMANN J. Surface tension of pure liquids and binary liquid mixtures ［J］. Journal of Chemical and Engineering Data, 2003, 48(3): 580？？586. |
| [11] | ［14］ZHOU Y, WU J T, LEMMON E W. Thermodynamic properties of o？？xylene, m？？xylene, p？？xylene, and ethylbenzene ［J］. Journal of Physical and Chemical Reference Data, 2012, 41(2): 1？？26. |
| [12] | ［16］AZIZIAN S, BASHAVARD N. Surface tension of dilute solutions of alkanes in cyclohexanol at different temperatures ［J］. Journal of Chemical and Engineering Data, 2008, 53(10): 2422？？2425. |
| [13] | ［19］赵贯甲. 表面光散射法黏度和表面张力实验系统研制及应用 ［D］. 西安: 西安交通大学, 2013. |
| [14] | ［6］CHEN Z Q, MA P S, XIA S Q, et al. Surface tension of o？？xylene plus acetic acid and m？？xylene plus acetic acid binary mixtures from 303？？15 K to 343？？15 K ［J］. Journal of Chemical and Engineering Data, 2007, 52(2): 454？？457. |
| [15] | ［7］DENG J H, TAN H F, YANG Y Y, et al. Densities and surface tensions of propyl acetate plus xylenes or plus ethylbenzene from(298？？15 to 308？？15) K ［J］. Journal of Chemical and Engineering Data, 2007, 52(3): 1131？？1135. |
| [16] | ［9］KUMAR M P, TASLEEM S, RAKESH KUMAR G. Surface tension of binary mixtures of o？？xylene (1)+isopropanol (2) and o？？xylene (1)+n？？butanol (2) from 303？？15 to 343？？15 K ［J］. Journal of the Institution of Engineers: Series EChemical and Textile Engineering, 2013, 94(1): 47？？53. |
| [17] | ［10］RICHARDS T W, SPEYERS C L, CARVER E K. The determination of surface tension with very small volumes of liquid, and the surface tensions of octanes and xylenes at several temperatures ［J］. Journal of the American Chemical Society, 1924, 46(5): 1196？？1207. |
| [18] | ［11］DOMINGUEZ？？PEREZ M, SEGADE L, CABEZA O, et al. Densities, surface tensions, and refractive indexes of propyl propanoate plus hexane plus m？？xylene at 298？？15 K ［J］. Journal of Chemical and Engineering Data, 2006, 51(1): 294？？300. |
| [19] | ［2］BATTIN？？LECLERC F, BOUNACEUR R, BELMEKKI N, et al. Experimental and modeling study of the oxidation of xylenes ［J］. International Journal of Chemical Kinetics, 2006, 38(4): 284？？302. |
