Kinetics of Vapor Sorption by Latex-Bonded Carbon Particles

Author(s):  
DW Jones ◽  
P Watts
2019 ◽  
Vol 45 ◽  
pp. 146867831989141
Author(s):  
Bahador Abolpour ◽  
Rahim Shamsoddini

The reaction kinetics of carbon reduction of silica were investigated using thermodynamic concepts and by fitting to relevant models the experimental data obtained for this reduction using a thermogravimetric unit in the temperature range of 1566 to 1933 K. The results show that the only way to produce SiC in this reduction is the reaction of Si, SiO, or SiO2 at the surface or by diffusion of SiO inside the carbon particles while CO and CO2 have no direct effect on the process. The controlling step of this reduction at temperatures lower than 1750 K is the chemical gas–solid or solid–solid reaction at the surface of the carbon particles, while at higher temperatures, the rate of SiO diffusing inside the carbon particles controls the rate of this reduction.


2007 ◽  
Vol 42 (6) ◽  
pp. 493-506 ◽  
Author(s):  
Trairat Neimsuwan ◽  
Siqun Wang ◽  
Adam M. Taylor ◽  
Timothy G. Rials

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1083
Author(s):  
Karol Sztekler ◽  
Wojciech Kalawa ◽  
Łukasz Mika ◽  
Agata Mlonka-Medrala ◽  
Marcin Sowa ◽  
...  

The article presents experimental results of the metal-based and carbon nanotube additives influence on sorption kinetics of a silica-gel-based adsorption bed in an adsorption chiller. The purpose of the doping is to improve the efficiency of sorption processes within the bed by use of metallic and non-metallic additives characterized by higher thermal diffusivity than basic adsorption material. The higher the thermal conductivity of the bed, the faster the sorption processes take place, which directly translates into greater efficiency of the refrigerator. In this study, sorption kinetics of pure silica gel sorbent doped with a given amount of aluminum (Al) and copper (Cu) powders and carbon nanotubes (CNT) were analyzed. The tests were performed on DVS Dynamic Gravimetric Vapor Sorption System apparatus used for dynamic vapor sorption measurements. A decrease in the amount of adsorbed water was observed with an increase in the mass share of the additives in the performed studies. Experimental results show that, CNTs seems to be the most promising additive as the sorption process time was reduced with the smallest decrease in water uptake. Any significant reduction of adsorption time was noted in case of the Al addition. Whereas, in case of Cu doping, delamination of the mixture was observed.


1986 ◽  
Vol 4 (1) ◽  
pp. 89-99
Author(s):  
V.A DE GOIS ◽  
J. CAL-VIDAL Vainberg

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