Reordering of Depolymerized Silicates as Adsorbents for Large Nitrogen Compounds

The adsorption capacities of two synthesized zeolites (crystalline ZSM-5 and semi-crystalline faujasite Y) for a mixture indole, quinoline carbazole were studied. different samples obtained show crystalline degree, mesoporosity Si/Al ratios. synthesis procedure is based on the simultaneous depolymerization high surface area silica, such as rice hull ashes (RHA), zeolite, clinoptilolite or faujasite. step followed by partial reorganization induced structure-directing agent. A model nitrogenous compounds was prepared, then it mixed with zeolite amount adsorbed determined gas chromatography. Analysis molecules reveals selectivity in favor quinoline, indole carbazole. best adsorbent properties correspond to solid highest porous volume. characterized X-ray diffraction, 29Si 27Al magic-angle spinning nuclear magnetic resonance, fluorescence Fourier transform infrared spectroscopy. Barrett-Joyner-Halenda (BJH) pore size distribution Brunauer-Emmet-Teller (BET) values from N2 adsorption/desorption isotherms.