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In this paper we show that a 0.5wt.% Ru/γ-Al2O3 catalyst is appropriate to carry out the Sabatier reaction (CO2 methanation) under process conditions relevant for the Power-to-Gas application and we provide a kinetic model able to describe the CO2 conversion over a wide range of process conditions, previously unexplored. To achieve these goals, the effects of feed gas composition (H2/CO2 ratio and...
In the field of coal and biomass gasification for distributed power generation, ENEA and Sotacarbo are developing several activities on demonstration plant scale in order to test gasification technologies for combined production of synthesis gas and electric power in medium and small-scale industrial plants.The Sotacarbo pilot platform has been built up to test different plant solutions at different...
The removing CO2 from fossil fuel based power plants has got increased interest due to environmental reasons. CO2 absorption by chemical solvents is an attractive and commercial applicable CO2 capture technology.In that field ENEA, together with Sotacarbo, is developing different activities on their pilot plants to test the use of gasification technologies for the combined production of hydrogen and...
Several power plant configurations have been recently studied as an alternative to conventional technologies in the field of energetic conversion of coal. The price of natural gas shows a volatile trend and when at its maximum promotes a renewed interest in technologies converting coal into synthetic natural gas (SNG). Moreover, in an low-carbon economy these processes include the capture of CO2 in...
In the presence of low cost H2, the hydrogenation of pure CO2 streams (e.g., from carbon capture processes) or CO/CO2 mixtures (e.g., from biomass of coal gasification) to fuels is a potential solution to convert the primary greenhouse gas into a valuable building block for the synthesis of high-added value products. Iron based Fischer–Tropsch catalysts, known for their reverse water gas shift activity,...
In recent years coal-fired power plants have increased their role in the global energy scenario and in this framework environmental issues require a sustainable use of coal and great efforts for greenhouse gas reduction.With this aim, this paper reports on a comparative performance assessment of two power generation technologies: the Ultra Super Critical (USC) steam plant and the Integrated Gasification...
This paper analyzes the technical and economic feasibility of the integration of Fischer–Tropsch process based Coal to Liquid (CTL) plants with Carbon Capture and Storage Technologies (CCS). CTL plants could be multipurpose, and for this reason, starting from coal can produce different energy products like liquid fuels, such as diesel and gasoline, chemicals, electricity and hydrogen. Different plant...
Coal use for electricity generation will continue growing in importance. In the present work the optimization of a high efficiency and zero emissions coal-fired plant, which produces both hydrogen and electricity, has been developed. The majority of this paper concerns an integration of gasification unit, which is characterized by coal hydrogasification and carbon dioxide (CO 2 ) separation,...
This paper concerns a performance evaluation of a small scale (about 100kWe), externally fired gas turbine (EFGT) fuelled by residual biomass and integrated with a biomass dryer. In biomass fuelled EFGT power plants, compressed air is heated in the high temperature heat exchanger by using the hot gases produced by the biomass combustion process. The hot air expands in the turbine and then feeds the...
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