2014, Volume 17, Issue 1
Carbon Dioxide Reusing for Methane Fuel Obtaining Over Heterogeneous Catalysts as a Possible Source of Energy
1 National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, PO Box Râureni 7, 240050, Râmnicu Vâlcea, Romania
2 “Gheorghe Asachi” Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection D. Mangeron, 71, 70050, Romania
3 Research Center OLTCHIM SA, 1 Uzinei St, Rm. Valcea, Romania
Using the carbon dioxide as a technological fluid for building complex block molecules or as a raw material in chemical processes (as a carbon source for fuels or in biotechnological applications) can provide the potential to reduce CO2 emissions. In this paper, catalytic tests for carbon dioxide hydrogenation are investigated over nickel base catalysts on various supports, in a temperature range from 300 to 550°C under atmospheric pressure. The important parameters such us: the reaction temperature, H2/CO2 molar ratio and reproducibility tests are taken into account and optimized. The experiments indicate that by the increasing H2/CO2 molar ratio we get an increase of the CO2 conversion up to 99.8% at 400-430°C. Temporal distributions of volumetric concentrations for CO2, H2 and CH4 at various reaction conditions are presented.
This method possesses the merits of promising performances regarding the methanation process over a low cost catalyst and raw material, reusing CO2 and generating CH4 fuel as a possible source of energy.
Methanation, CO2 reuse, heterogeneous catalysts.
Tag search Methanation CO2 reuse heterogeneous catalysts