Adsorption of hydrocarbons on carbon molecular sieve
Tokyo Metropolitan University's Dept. of Industrial Chemistry gravimetrically measured the adsorption equilibria of methane, ethane, ethylene, propane, propylene, n-butane,, n-pentane, benzene, and cyclohexane on commercially available carbon molecular sieves at the temperature range of 5.4/sup 0/-50/sup 0/C and pressures up to 1 atm. The experiment, part of a continuing study of the adsorption of gases and vapor on microporous solids, reports that the isotherms for the pure gases are of the Type I shape according to the classification of S. Brunnauer et al., which is usually observed in adsorption on microporous adsorbents where the adsorption does not proceed beyond a monomolecular layer. For the methane system, where the temperatures are above the critical level, the adsorption does not reach saturation at pressures below 650 mm Hg. For the ethylene and ethane systems, where the temperatures at both below and above the critical, the shape of the isotherm is also similar to Type I. A comparison of the ethane data at 0/sup 0/C and 30/sup 0/C with those of K. Kawazoe et al. demonstrated the molecular sieving effect. This effect is also obvious for cyclohexane with an adsorbed amount of /sup 1///sub 15/ the benzene adsorption at 30/sup 0/C.
- Research Organization:
- Tokyo Univ.
- OSTI ID:
- 7154417
- Journal Information:
- J. Chem. Eng. Data; (United States), Vol. 19
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BENZENE
ADSORPTION
BUTANE
CYCLOHEXANE
ETHANE
ETHYLENE
METHANE
PENTANE
PROPANE
PROPYLENE
CARBON
LOW PRESSURE
MEDIUM TEMPERATURE
MOLECULAR SIEVES
SORPTIVE PROPERTIES
ADSORBENTS
ALKANES
ALKENES
AROMATICS
CRYOGENIC FLUIDS
CYCLOALKANES
ELEMENTS
FLUIDS
HYDROCARBONS
NONMETALS
ORGANIC COMPOUNDS
SORPTION
SURFACE PROPERTIES
090110* - Hydrocarbon Fuels- Properties- (1979-1989)
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)