Open AccessDetermination of the Texture of Narrow-Pore Zeolites by the Dynamic Desorption Method
Author(s) -
Jiří Pospíšil,
V. Patzelová
Publication year - 1987
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/0263617487004001-213
Subject(s) - microporous material , zeolite , chemistry , desorption , sorption , adsorption , texture (cosmology) , nitrogen , amorphous solid , chemical engineering , molecular sieve , catalysis , analytical chemistry (journal) , chromatography , organic chemistry , artificial intelligence , computer science , engineering , image (mathematics)
This work describes the first application of the desorption of nitrogen under dynamic conditions to characterize the texture of a natural zeolite. These dynamic conditions are very similar to those in actual sorption and catalytic processes. It was found that, under the experimental conditions described, nitrogen is desorbed from narrow-pore zeolites with a kinetic parameter comparable with the diameter of the nitrogen molecule in two separate steps that can be both qualitatively and quantitatively assigned to the amorphous and microporous fractions of the test zeolite.