Jl. Faulon et al., CORRELATION BETWEEN MICROPOROSITY AND FRACTAL DIMENSION OF BITUMINOUSCOAL-BASED ON COMPUTER-GENERATED MODELS, Energy & fuels, 8(2), 1994, pp. 408-414
Using computer-generated three-dimensional molecular models, we verify
that the surface area of vitrinite from HvC bituminous coal depends o
n the size of the unit used to measure the surface (the adsorbate size
), the size of the model (the particle size), and the micropore size d
istribution. By varying these three factors, we demonstrate that the s
urface area of our bituminous coal models is characterized by a single
number (D = 2.71)-the fractal dimension. Our micropore size distribut
ion, which is a consequence of the fractal dimension, reveals that mos
t of the micropores are ultramicroporous (having an pore entrance size
less than 0.8 nm).