Hydrocarbon binary

Gas Diffusivity For prediction of the gas diffusivity of binary hydrocarbon-hyarocarbon gas systems at low pressures (below about 500 psia [3.5 MPa]) the method of Gilliland given by Eq. (2-150) is recommended. 

Dilute Binary Hydrocarbon Mixtures Hayduk-Minhas presented an accurate correlation for normal paraffin mixtures that was developed from 58 data points consisting or solutes from C5 to C32 and solvents from C5 to Cig. The average error was 3.4 percent for the 58 mixtures. 

Thermochemistry of cluster compounds. In this short summary of cluster structures and their bonding, a few remarks on their thermochemical behaviour are given, in view of a possible relationship with the intermetallic alloy properties. To this end we remember that for molecular compounds, as for several organic compounds, concepts such as bond energies and their relation to atomization energies and thermodynamic formation functions play an important role in the description of these compounds and their properties. A classical example is given by some binary hydrocarbon compounds. 

Five binary-hydrocarbon mixtures of ethane or ethylene with heavier hydrocarbons were studied (Table III). The only substrate used in these studies was water. If an RPT did not occur, ice always formed rapidly. When n-butane or n-pentane was the heavier component, RPTs were 100% reproducible over a particular composition range. This was not, however, true if the heavier component were propane. 

Cash L, Cayias JL, Pournier G, MacAllister D, Shares T, Schechter RS, Wade WH (1977) The application of low interfacial tension scaling rules to binary hydrocarbon mixtures. J Colloid Interface Sci 59 39-44... 

Convergence pressures of binary hydrocarbon mixtures may be estimated from the critical locus curves given in Figure 2-16. A similar curve which includes multicomponent mixtures is presented in Figure... 

Kobayashi, R., Vapor-Liquid Equilibrium in Binary Hydrocarbon-Water Systems, Ph.D. Dissertation, University of Michigan, University Microfilms No. 3521, Ann Arbor, MI (1951). 

To evaluate the phase equilibria of binary gas mixtures in contact with water, consider phase diagrams showing pressure versus pseudo-binary hydrocarbon composition. Water is present in excess throughout the phase diagrams and so the compositions of each phase is relative only to the hydrocarbon content. This type of analysis is particularly useful for hydrate phase equilibria since the distribution of the guests is of most importance. This section will discuss one diagram of each binary hydrate mixture of methane, ethane, and propane at a temperature of 277.6 K. 

The Pressure-Volume Diogram for a Two-Component System. Consider the presBUre-volume diagram of a binary hydrocarbon mixture... 

Acree, W. E. Zvaigzne, A. 1. Tucker, S. A. Thermochemical investigations of hydrogen-bonded solutions—development of a predictive equation for the solubflity of anthracene in binary hydrocarbon plus alcohol mixtures based upon mobile order theory. Fluid Phase Equilib. 1994, 92, 233-253. 

Surface tension of hydrocarbon + alcohol mixtnres The surface tension of the binary hydrocarbon (benzene, toluene, cyclohexane, methyl-cyclohexane) + alcohol (ethanol, t-pentyl alcohol) mixtures were reported5 at 303.15 K (30°C). 

Equation (4-26) was developed by Hougen and Watson. More recently, Mehra, Brown, and Thodos utUized it to determine /C-values for binary hydrocarbon systems up to and including the true mixtiu-e critical point. Equation (4-27) has received considerable attention. Applications of importance are given by Benedict, Webb, and Rubin Starling and Han " and Soave. Two unsymmetrical formulations are ... 

Figure 4.5. K>values of ethane in binary hydrocarbon mixtures at 100 F.

In order to gain a rough impression of the relation between differences in boiling point and the required number of separating stages, the values for binary hydrocarbon mixtures at normal pressure, given by Hilberath [151], are quoted in Table 15. 

Tabitha the Untutored is working with some binary hydrocarbon mixtures that boil above 450 K. She reads in her thermo textbook that "Such substances form athermal mixtures that is, no change in temperature occurs when the pure components are mixed adiabatically."... 

Figure 28 Critical p T) curves of binary hydrocarbon + water systems (1 = benzene + HjO 2 = benzene + DjO 3 = methylbenzene + 4 = 2-dimethyl-...

THE SURFACE TENSION AND DENSITY OF BINARY HYDROCARBON MIXTURES. BENZENE-N-HEXANE AND BENZENE-N-DODECANE. 

It has been found that the viscosities of many non-hydrocarbon liquid mixtures at a fixed temperature and pressure exhibit a maximum or a minimum as a function of composition [2]. However, this effect is small for hydrocarbons as shown in Figure 4, where the viscosities of binary hydrocarbon mixtures are seen to change almost linearly with mole fraction. 

In this form, the Pedersen et al. model can be extended only to well-defined mixtures for which critical properties of the constituents are available. They tested their models for 419 data points of seven binary hydrocarbon mixtures and were able to predict mixture viscosities with an average error of 7.4%. 

This result (the Lewis correlation) has been found empirically to be of more general applicability than the Langmuir equations from which it is derived. Representative data, taken from the work of Lewis et al., showing the approximate conformity of experimental data for sorption of several binary hydrocarbon mixtures on silica gel are shown in Figure 4.15. Combining Eq. (4.14) with Eq. (3.57) and the definition of separation factor (a) [Eq. (1.1)] yields... 

Mentzer, R. A. Greenkorn, R. A. Chao, K. C. Bubble pressures and vapor-liquid equilibria for four binary hydrocarbon... 

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