Thermodynamic and transport properties of fluids in pores. Annual technical report, January 1-December 31, 1991
Technical Report
·
OSTI ID:6694822
The authors have completed a study of the maximum methane adsorption storage capacity of model carbons and zeolites for a range of pore sizes, temperatures and pressures. They find that carbons with slit pores offer higher storage capacity in general than zeolites, which have cylindrical or hexagonal pores. The optimum pore size is generally about H=3 omega, where H is the slit width in the case of carbons or the diameter in the case of zeolites, and omega is the Lennard-Jones diameter of the methane molecule. They have also carried out simulations for methane adsorbed in carbons at lower temperatures, in the range 40-140 K. They find many phase transitions in these adsorbed layers, including multiple layering transitions, two-dimensional freezing transitions, solid-solid transitions and capillary condensation. Where experimental data is available agreement is good. Two new projects, involving simulation studies of methane in wedge-shaped carbon pores, and water adsorption in activated carbons, have been initiated. The theory of transport phenomena in adsorbed fluids and in pores has been further developed to obtain tractable equations for the viscosities and thermal conductivity.
- Research Organization:
- Cornell Univ., Ithaca, NY (United States). Coll. of Engineering
- OSTI ID:
- 6694822
- Report Number(s):
- PB-93-158533/XAB; CNN: GRI-5086-260-1254
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
033000* -- Natural Gas-- Properties & Composition
ADSORPTION
ALKANES
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
CAPACITY
CARBON
COMPUTERIZED SIMULATION
DATA
DETECTION
DIMENSIONS
DISPERSIONS
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
FLUIDS
FREEZING
HYDROCARBONS
HYDROGEN COMPOUNDS
HYPOTHESIS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LAYERS
LIQUIDS
MATERIALS
MATHEMATICAL MODELS
METHANE
MINERALS
MIXTURES
MONTE CARLO METHOD
NATURAL GAS LIQUIDS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POROSITY
POROUS MATERIALS
RESEARCH PROGRAMS
SILICATE MINERALS
SIMULATION
SORPTION
SORPTIVE PROPERTIES
STORAGE
SURFACE PROPERTIES
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSPORT
WATER
WIDTH
ZEOLITES
033000* -- Natural Gas-- Properties & Composition
ADSORPTION
ALKANES
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
CAPACITY
CARBON
COMPUTERIZED SIMULATION
DATA
DETECTION
DIMENSIONS
DISPERSIONS
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
FLUIDS
FREEZING
HYDROCARBONS
HYDROGEN COMPOUNDS
HYPOTHESIS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LAYERS
LIQUIDS
MATERIALS
MATHEMATICAL MODELS
METHANE
MINERALS
MIXTURES
MONTE CARLO METHOD
NATURAL GAS LIQUIDS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POROSITY
POROUS MATERIALS
RESEARCH PROGRAMS
SILICATE MINERALS
SIMULATION
SORPTION
SORPTIVE PROPERTIES
STORAGE
SURFACE PROPERTIES
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSPORT
WATER
WIDTH
ZEOLITES