Adsorption of Binary Hydrocarbon Gas Mixtures on Activated Carbon

Grant, R.J.; Manes, Milton

doi:10.1021/i160020a010

Cited by 114 publications

(54 citation statements)

References 5 publications

(8 reference statements)

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“…A generalized Polanyi equation has been shown to correlate adsorption data on charcoal reasonably well (38)(39)(40), and the method of Grant and Manes (40) was applied to the present data o n the 4A zeolite. The characteristic curve in terms of volume of adsorbate as a function of the adsorption potentials, +, per unit volume of adsorbate, where is plotted, assuming that the density of adsorbate equals the density of l i q~~i d at the boiling point.…”

Section: Discussionmentioning

confidence: 99%

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Adsorption of gases on 4A synthetic zeolite

Harper¹,

Stifel²,

Anderson³

1969

Can. J. Chem.

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Equilibrium data are presented for the adsorption of permanent gases and C , and C z hydrocarbons on Linde 4A synthetic zeolite from 50 "C down to the boiling point of the adsorbate or to a temperature at which the rate was very slow. The Freundlich equation often fits isotherms accurately; however, these lincar logarithmic plots secnl to be only portions of a more general non-linear relationship. Generallzcd Polanyi plots did not yield a ilniquc characteristic curve for individual adsorbates at different temperatures nor for groups of adsorbates; nevertheless, these plots are useful in estimating the relative strength of adsorption of gases. Ar, 0 2 , CH*, and C2HG wcre the least strongly adsorbed, followed in order of increasing strength by N,, CO, CO,, and C2H2. Ethylene was strongly but anomalously adsorbed. For the gases studied, the quadrupole moment seems to be the principal factor determining strong adsorption.

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Section: Discussionmentioning

confidence: 99%

“…Here V is the molar volume based on this density, and y is the pressure of adsorbate. The values of vapor pressure,p,, wereestimated from a plot of logp, vs. T -l , extrapolated above the critical temperature where necessary (40).…”

Section: Discussionmentioning

confidence: 99%

Adsorption of gases on 4A synthetic zeolite

Harper¹,

Stifel²,

Anderson³

1969

Can. J. Chem.

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show abstract

“…The adsorption system may also be solved using statistical thermodynamics. Some commonly used multicomponent adsorption models are the extended Langmuir equation [110], extended Langmuir-Freundlich equation [110], vacancy solution theory [116], and potential theory [117]. Because the IAS theory was used as the basis for the adsorption model used to predict the formation of soluble organic fraction on the carbon particle surface, it will be discussed in more detail in the following section.…”

Section: Model Of Unburaed Hydrocarbon Vapor Adsorptionmentioning

confidence: 99%

Determination of Particulate and Unburned Hydrocarbon Emissions from Diesel Engines Fueled with Biodiesel

Chang¹,

Gerpen²

1998

SAE Technical Paper Series

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“…Most of these models are based on the Polanyi potential theory (Lewis et al, 1950a;Grant and Manes, 1966;Dubinin, 1975;Mehta and Danner, 1985;Doong and Yang, 1988). A recent model is instead based on an Antoine-type equation (Hacskaylo and LeVan, 1985).…”

Section: Introductionmentioning

confidence: 99%

“…We will restrict our discussion to models with common assumptions of a "liquid-like'' adsorbed phase and a dependence of fractional filling of the pore volume on adsorbate pressure. When these models are extended to a mixed adsorbed phase, it is generally assumed that the adsorption potential or reference pressure of each component can be calculated from the mixture adsorbate volume (Lewis et al, 1950b;Grant and Manes, 1966). The fugacities of the vapor and adsorbed phases of each component are frequently related for pore-filling models by the expression…”

Section: Introductionmentioning

confidence: 99%