ENTROPY OF HYDROGEN SULFIDE ADSORPTION IN ACTIVATED SORBENT
Keywords:
Hydrogen sulfide, аdsorption, adsorption microcalorimetry, activated carbon, Paulownia Tomentosa, adsorption entropy.Abstract
In this work, the results of adsorption microcalorimetric studies are presented, aimed at determining the main energetic characteristics of hydrogen sulfide (H₂S) adsorption on an activated carbon sorbent derived from hybrid Paulownia tomentosa wood. The differential values of the molar adsorption entropy were calculated, and a stepwise character of its variation was revealed. The average value of the molar integral adsorption entropy was found to be 7 J·mol⁻¹·K⁻¹, which indicates an enhanced mobility of H₂S molecules compared to the liquid phase and, consequently, a weak restriction of their movement within the sorbent pores.
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