Silicate Fiberglass Catalysts: From Science to Technology
Статья (Full article),
Catalysis in Industry
, E-ISSN: 2070-0555
||deep oxidation of hydrocarbons, glass fiber, oxidative destruction of chlororganics, palladium, platinum, selective hydrogenation of acetylene
Kovalyov E. V.
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Efficient methods for the confining of highly dispersed Pd and Pt particles 1–1.5 nm in size in the subsurface layers of silicate glass fibers at depths of 10–20 nm are developed. Fiberglass catalysts reveal high activity in the selective hydrogenation of acetylene and the deep oxidation of hydrocarbons despite their low metal contents (0.01–0.02 wt %). The monometallic Pd/FG catalyst thus exhibits higher C2H2 hydrogenation selectivity at high acetylene conversion (99%+) in comparison to the commercial bimetallic Pd–Ag catalyst, and the activity of the Pt/FG catalyst in the deep oxidation of organic and chlororganic compounds, including dioxins, is found to be higher than that of the commercial AP-56 (Pt/Al2O3) catalyst. The efficiency of Pt/FG has successfully been demonstrated in the removal volatile organic compounds (VOC) from Monomer plant of PJSC Nizhnekamskneftekhim for more than four years of continuous operation.