Investigation of Diffusion and Adsorption of Acetone in Building Materials by Dynamic Method

Year 2018, Volume: 13 Issue: 2, 39 - 46, 19.09.2018

Şakir Yılmaz Cevdet Akosman

Abstract

In this study, diffusion and adsorption behavior of volatile organic
compound of acetone
on building materials such as perlite
plaster, thermal isolation plate plaster and machine plaster were investigated by using one-sided single pellet
moment technique. Experimental studies were conducted in a one-sided single
pellet Wicke Kallenbach type diffusion/adsorption cell under isobaric
conditions. The amount
of acetone in the gas phase was measured by GC technique. The zero^th
moment analyses showed that the adsorption of acetone on all gypsum plasters
used was found to be reversible. The results indicated that the adsorption
degree of acetone on the thermal insulation plaster was the lowest value. The
acetone adsorption decreased with increasing temperature while the effective
diffusivities of acetone increased with increasing temperature in the gypsum
plasters. Moreover, the studies revealed that the adsorption process was
physical adsorption process and exothermic. 

Keywords

Adsorption, Effective Diffusivity, Acetone, Gypsum Plaster, Dynamic Method

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