Progress of Cryogenics and Isotopes Separation


The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.

CARBON DIOXIDE reusing for methane fuel obtaining OVER HETEROGENEOUS CATALYSTS as a possible source of energy Print

CARBON DIOXIDE reusing for methane fuel obtaining OVER HETEROGENEOUS CATALYSTS as a possible  source of energy 


Adriana Marinoiu*, Elena Carcadea1, Roxana Ionete1, Mircea Raceanu1, Claudia Cobzaru2, Ioan Iordache1, Constantin Teodorescu3 , Adrian Enache1, Mihai Varlam1

 1National Research and Development Institute for Cryogenics and Isotopic Technologies - ICIT Rm. Valcea,  

Uzinei Street no. 4, P.O. Box Raureni 7, 240050, Ramnicu 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. 

           Keywords: methanation, CO2 reuse, heterogeneous catalysts.

*Corresponding author: Adriana Marinoiu, phone: 0250732744, Fax: 0250732746, E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

2“Gheorghe Asachi” Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection D. Mangeron, 71, 70050, Romania

3OLTCHIM SA, Research Center, Uzinei Street no. 1,  Ramnicu  Valcea, Romania