GIBBS ENERGY AND THE MECHANISM OF CARBONYL SULFIDE ADSORPTION ON ZEOLITE KA (MSS-558)
Keywords:
zeolite, adsorption, energy, Gibbs energy, enthalpy, temperature, microcalorimeter, carbonyl sulfide.Abstract
The article presents the change in Gibbs energy during the adsorption of carbonyl sulfide molecules on zeolite KA (MSS-558) at a temperature of 303 K. The regular relationship between the amount of adsorption of carbonyl sulfide on zeolite KA (MSS-558) and the values of the Gibbs energy was determined, as well as the sorption mechanism of carbonyl sulfide and the regularity of filling the zeolite surface with carbonyl sulfide molecules. Under experimental conditions, it was shown that the adsorption capacity of zeolite KA (MSS-558) for carbonyl sulfide is 0.3 mmol/g per 1 g of zeolite. In the initial phase, it was found that under the influence of K+ carbonyl sulfide molecules, K+ cations in zeolite KA (MSS-558) migrate from the internal matrix of the zeolite to the surface and form ionic-molecular complexes with carbonyl sulfide molecules.
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