Gas chromatographic sorption studies of hydrocarbons in pentasils with different Si/Al-ratio

Conference · Sun Jan 01 04:00:00 EST 1984 · ASHRAE Trans.; (United States)

OSTI ID:6076726

Lechert, H; Schweitzer, W

Gas chromatographic studies of sorption isotherms of butane, 1-butene and benzene on silicalite and ZSM-5 with different Si/Al-ratio in the Na- and the H-form have been made. For butane similar behvaior on all zeolites is observed. The isotherms of a 1-butene and benzene have steps that are correlated with the number of cations inside the channel system. The heats of sorption allows the interaction of the sorbate molecules with the walls to be separated from that with the cations and protons. Typical heats in the range of interaction with the Na-ions are for butane 53 kJ/mole, for 1-butene 64 kJ/mole and for benzene 95 kJ/mole. For the H-forms the value of butane does not change, is slightly reduced for benzene and strongly increased to 110 kJ/mole for 1-butene.

• Research Organization: Institute of Physical Chemistry of the University of Hamburg, Hamburg 13
• OSTI ID: 6076726
• Report Number(s): CONF-840124-
• Conference Information: Journal Name: ASHRAE Trans.; (United States) Journal Volume: 90:1B
• Country of Publication: United States
• Language: English

Related Subjects

090110* -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ADSORPTION
ADSORPTION HEAT
ALKANES
ALKENES
ALUMINIUM COMPOUNDS
AROMATICS
BARYONS
BENZENE
BUTANE
BUTENES
CATIONS
CHARGED PARTICLES
CHROMATOGRAPHY
ELEMENTARY PARTICLES
ENTHALPY
FERMIONS
GAS CHROMATOGRAPHY
HADRONS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
MATERIALS
MINERALS
NUCLEONS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PROTONS
QUANTITY RATIO
SEPARATION PROCESSES
SILICON COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
ZEOLITES