摘要：The aim of this work was to study the influence of the modification of montmorillonites by carbonaceous and Al species as well as copper deposition. Commercial acid-treated montmorillonites, K5 and K30 (Sigma-Aldrich GmBH), were modified and used as catalysts in Selective Catalytic Reduction process of nitrogen oxides by ammonia. The characterisation was carried out by low-temperature nitrogen sorption, Fourier-transform-infrared spectroscopy and X-ray diffraction. Catalytic performance in SCR-NH 3 of so-modified montmorillonites was compared under the following conditions: mass of catalyst: 200 g, flow 100 cm 3 /min, reaction mixture: 800 ppm NO, 800 ppm NH 3 , 3 % O 2 , and He. The modification with copper and polyacrylamide led to the increase in NO conversion. The studied catalysts showed low N 2 O formation.
