Effect of acid and heat treatments on surface area and porosity of a Spanish coal with high mineral matter content

Effect of pH in an Aqueous Medium on the Surface Area, Pore Size Distribution, Density, and Porosity of Montmorillonite

“…The CO 2 adsorption isotherms were established up to 0.016 relative pressure due to the high vapor pressure of CO 2 at 273 K (26,142 mm Hg). The isotherms for both pH adjusted and unmodified montmorillonite are similar to the microporous acid-treated coal samples (36). In Table 1, CO 2 adsorption data show that the amount of microporous surface area is in the same order of magnitude as that of N 2 surface area.…”

Water Vapor Adsorption on Biomass Based Carbons under Post-Combustion CO2 Capture Conditions: Effect of Post-Treatment

“…When thermal treatment is applied to RN1 to obtain RN1P, a reduction in the porous structure is observed, as a consequence of the shrinkage of the carbon matrix [ 34 ]. The heat treatment in an inert atmosphere of N 2 at 1000 °C decreased the amount of N 2 adsorbed by 31% but led to an increase in the adsorption of CO 2 by 5%.…”

Physical and chemical properties of selected Turkish lignites and their pyrolysis and gasification rates determined by thermogravimetric analysis

“…The relationships between mineral constituents of coals and other carbonaceous materials and their reactivities were the subject of numerous studies [24,[28][29][30][31][32][33]. These studies employed basically three different methods: (1) searching for correlations between amounts of mineral constituents of coals in particular alkali and alkaline earth elements, some transition metals (iron, nickel, etc.)…”