CO2 Adsorption on Natural Zeolites from Puebla, México, by Inverse Gas Chromatography

The applicability of clinoptilolite zeolites in controlling the emission greenhouse gases (GHGs) such as CO2, most significant GHG, is investigated herein. In this research, Mexican natural (ATN) originating from an Atzinco deposit state Puebla were used. Samples modified (ATH4, ATH3, ATH2 and ATH1) obtained starting material by acid treatment various intensities. Inverse gas chromatography was used to evaluate CO2 adsorption clinoptilolite, chemically modified. Adsorption temperature range 433–573 K, using a TCD detector, He carrier gas. experimental data processed Freundlich Langmuir equations. degree interaction between dealuminated samples examined through evaluation isosteric enthalpy adsorption. This calculation made Clausius–Clapeyron equation, which established following sequence: ATH1 > ATH4 ATN ATH3. nanoporosity these clinoptolite new sedimentary rocks studied HRADS N2. Simultaneously, were, respectively, characterized XRD, EDS, SEM. Micropores are described Dubinin–Asthakov distribution. Various mechanisms that occur nanoporous materials at different relative pressures can be visualized. quantitative determination mineral as: Ca-Clinoptilolite (88.76%) >> Montmorillonite (11.11%) quartz (0.13%). Si/Al molar ratio after is: ATH3 ATH1. specific surface area (ASL) varies follows: At same time, VΣ values ATH2.