Heat of adsorption of water vapors and benzene on high-silicon zeolite of the faujasite type

1987 ◽  
Vol 36 (3) ◽  
pp. 437-444
Author(s):  
M. M. Dubinin ◽  
A. A. Isirikyan ◽  
N. I. Regent ◽  
Kh. K. Baier ◽  
I. M. Belen'kaya
Keyword(s):  
Heat Of Adsorption ◽  
Water Vapors ◽  
Adsorption Of Water ◽  
High Silicon

scholarly journals New insights into the heat of adsorption of water, acetonitrile, and n-hexane in porous carbon with oxygen functional groups

2019 ◽  
Vol 552 ◽  
pp. 412-417 ◽  
Author(s):  
Chiharu Urita ◽  
Koki Urita ◽  
Takuya Araki ◽  
Keiji Horio ◽  
Masayuki Yoshida ◽  
...  
Keyword(s):  
Functional Groups ◽  
Porous Carbon ◽  
Heat Of Adsorption ◽  
Oxygen Functional Groups ◽  
Adsorption Of Water

Analysis of Water Adsorption on Chitosan and Its Blends with Hydroxypropylcellulose

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Maria Mucha ◽  
Kazimierz Wańkowicz ◽  
Jacek Balcerzak
Keyword(s):  
Hydrogen Bonds ◽  
Thermodynamic Parameter ◽  
Solid Surface ◽  
Mass Fraction ◽  
Water Adsorption ◽  
Vapour Phase ◽  
Heat Of Adsorption ◽  
Water Molecules ◽  
Monomolecular Layer ◽  
Adsorption Of Water

AbstractChitosan (CH) and hydroxypropylcellulose (HPC) adsorb water easily by hydrogen bonds formed with hydroxyl and amide groups present in their structures. Heat of adsorption is a thermodynamic parameter which is used to estimate the type of adsorbate molecule bond on a solid surface, among the others. Adsorption of water from vapour phase on chitosan, hydroxypropylcellulose and blends of both biopolymers in the form of films were carried out. Isotherms of water adsorption in the samples were described by the GAB equation. Correlations between mass fraction of chitosan in the sample (wf) and the values of GAB coefficients were obtained. From parameter c in the GAB equation mean heat of adsorption of the first monomolecular layer of water molecules E1, and pure molar heat of adsorption q were determined.

scholarly journals The Influence of Binding Material on Porous Structure of Shaped Hopcalite

2008 ◽  
Vol 3 (1) ◽  
pp. 67-69
Author(s):  
N.K. Kulikov ◽  
S.G. Kireev ◽  
A.O. Shevchenko ◽  
V.M. Mukhin ◽  
S.N. Tkachenko ◽  
...  
Keyword(s):  
Water Molecule ◽  
Porous Structure ◽  
Bentonite Clay ◽  
Mesoporous Structure ◽  
Monolayer Capacity ◽  
Bentonitic Clay ◽  
Binding Material ◽  
Water Vapors ◽  
Bet Model ◽  
Adsorption Of Water

The authors have investigated the equilibrated adsorption of water vapors on GFG hopcalite, which was obtained using the extrusion shaping method, with bentonite clay as the binding compound. In the frames of the BET model, the values of the monolayer capacity and the size of medium area occupied by the water molecule in the filled monolayer have been determined. The distribution of pores according to their sizes has been evaluated. It has been established that the modification of the bentonitic clay allows directed construction of the hopcalite porous structure,i.e. the formation of the mesoporous structure with a narrow distribution of the pores capacities by sizes, which was achieved varying the sizes of binding compound particles.

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