scholarly journals A Test of the Horvath–Kawazoe Method by Monte Carlo Simulation

1997 ◽  
Vol 15 (1) ◽  
pp. 15-24 ◽  
Author(s):  
D. Valladares ◽  
G. Zgrablich
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Pore Size ◽  
Size Distribution ◽  
Adsorption Isotherms ◽  
Nitrogen Adsorption ◽  
Size Distributions ◽  
Micropore Size Distribution ◽  
Nitrogen Adsorption Isotherms ◽  
Micropore Size

The Horvath–Kawazoe (H–K) method, which is frequently used to obtain the micropore size distributions of microporous materials, has been tested by Monte Carlo Simulation of nitrogen adsorption isotherms. The results show that the H–K method only gives good results when the microporosity is confined to a pore size lower than approximately 13 Å. In this region, although the method can predict the micropore size distribution peak with acceptable precision, it fails for wider distributions.

Determination of Micropore Size Distribution from Grand Canonical Monte Carlo Simulations and Experimental CO2Isotherm Data

Langmuir ◽  
1997 ◽  
Vol 13 (10) ◽  
pp. 2795-2802 ◽  
Author(s):  
S. Samios ◽  
A. K. Stubos ◽  
N. K. Kanellopoulos ◽  
R. F. Cracknell ◽  
G. K. Papadopoulos ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Size Distribution ◽  
Grand Canonical Monte Carlo ◽  
Micropore Size Distribution ◽  
Grand Canonical ◽  
Micropore Size

scholarly journals Monte Carlo simulation of coagulation in discrete particle-size distributions. Part 2. Interparticle forces and the quasi-stationary equilibrium hypothesis

1984 ◽  
Vol 143 ◽  
pp. 387-411 ◽  
Author(s):  
I. A. Valioulis ◽  
E. J. List ◽  
H. J. Pearson
Keyword(s):  
Monte Carlo Simulation ◽  
Particle Size ◽  
Monte Carlo ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Dimensional Analysis ◽  
Spherical Particles ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Coagulation Rate

Hunt (1982) and Friedlander (1960a, b) used dimensional analysis to derive expressions for the steady-state particle-size distribution in aerosols and hydrosols. Their results were supported by the Monte Carlo simulation of a non-interacting coagulating population of suspended spherical particles developed by Pearson, Valioulis & List (1984). Here the realism of the Monte Carlo simulation is improved by accounting for the modification to the coagulation rate caused by van der Waals', electrostatic and hydrodynamic forces acting between particles. The results indicate that the major hypothesis underlying the dimensional reasoning, that is, collisions between particles of similar size are most important in determining the shape of the particle size distribution, is valid only for shear-induced coagulation. It is shown that dimensional analysis cannot, in general, be used to predict equilibrium particle-size distributions, mainly because of the strong dependence of the interparticle force on the absolute and relative size of the interacting particles.

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