Catalytic reduction of carbon dioxide on industrial catalysts

Abstract

The applicability of some industrial catalysts for the process of carbon dioxide conversion into synthesis gas has been evaluated process of carbon dioxide conversion into synthesis gas. For the study were chosen catalysts on the basis of transition metals (Fe, Ni, Co) and Cu, used in large-tonnage hydrogenation processes and synthesis-gas technology: NIAP-03-01 (catalyst for steam conversion of hydrocarbon gases), NIAP-06-06 (catalyst for low-temperature conversion of CO), AmoMax 10 (catalyst for ammonia synthesis), Co-Al2O3 /SiO2 (catalyst for synthesis of hydrocarbons by Fischer–Tropsch method). The catalysts were tested in the process of catalytic reduction of CO2 by reaction reverse gaswater shift (RGWS). It was shown that Cu-containing catalyst (NIAP 06-06) possesses the highest activity and selectivity in the process of catalytic reduction of CO2. Under conditions of GHSV = 32000 h–1, H2 /CO2 = 2, and temperatures of 500–800 °C, the equilibrium of the RGWS reaction is achieved by 97 %. Due to selection of technological parameters of CO2 reduction (temperature, H2 /CO2 ratio) it is possible to obtain synthesis gas of the required composition. Due to selection of technological parameters of CO2 reduction (temperature, H2 /CO2 ratio) it is possible to obtain synthesis gas of the required composition for the synthesis of hydrocarbons and methanol.