Adsorption of binary mixtures of ethane and acetylene on activated carbon

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Sep. Sci. Technol.; (United States)

DOI:https://doi.org/10.1080/01496398408059935· OSTI ID:6314262

Lee, T V; Huang, J C; Rothstein, D; Madey, R

Dynamic measurement of the adsorption of binary mixtures of ethane and acetylene (and also of each gas alone) in a helium carrier gas were made on an (Columbia 4LXC 12/28) activated carbon adsorber bed at 25/sup 0/C. The adsorption capacities of the activated carbon for the pure gases and for each component in the mixtures are extracted from the transmission curves by the use of a mass balance equation. Transmission is the ratio of the concentration at the outlet of the adsorber bed to that at the inlet. The adsorption isotherms for pure ethane and acetylene can be presented by a modified Langmuir isotherm known as the Chakravarti-Dhar isotherm at gas concentrations up to at least 4.2 X 19/sup -7/ mol/cm/sup 3/ (viz., 7.8 mmHg). The gas-adsorbate equilibrium composition and the adsorption capacity of each component in the binary mixture of ethane and acetylene are estimated from the corresponding single-component isotherms by applying ideal adsorbed solution theory (IAST). The fact that the estimated values of the adsorption capacities and the gas-adsorbate equilibrium compositions are in good agreement with those extracted from the measurements for the binary mixtures of ethane and acetylene confirms that the ethane-acetylene system forms an ideal adsorbed phase on activated carbon at a pressure of about 7.3 mmHg and a temperature of 25/sup 0/C. 20 references, 4 figures, 4 tables.

• Research Organization: Kent State Univ., OH
• OSTI ID: 6314262
• Journal Information: Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 19:1; ISSN SSTED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACETYLENE
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
ADSORPTION ISOTHERMS
ALKANES
ALKYNES
BINARY MIXTURES
CARBON
DATA
DISPERSIONS
ELEMENTS
EQUATIONS
ETHANE
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
ISOTHERM
MATERIAL BALANCE
MEDIUM TEMPERATURE
MEDIUM VACUUM
MIXTURES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PREDICTION EQUATIONS
QUANTITY RATIO
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES