°C) cycles were performed in an atmospheric pilot scale bubbling fluidized bed reactor. Hydrogen production was enhanced …

Hydrogen demand as an energy currency is anticipated to rise significantly in the future, with the emergence of a … hydrogen economy. Hydrogen production is a key component of a hydrogen economy. Several production processes are commercially … other hydrogen production processes. Recent advances in hydrogen production by thermochemical water decomposition are …

In this paper, energy and exergy analyses of the geothermal-based hydrogen production via thermochemical water …

production of hydrogen and electricity power from coal and heavy residue oils. When associated with CO2 capture and sequestration … metal contents fuels, the possibility of installing large size plants for competitive electric power and hydrogen production …

) of a dual-fuel diesel engine (H2 (hydrogen)–diesel) using exergy analysis. The maximum available work increased with H2 …

Possibly one of the most significant advantages that hydrogen may have as a fuel is its potential for increased second … hydrocarbon-based fuels. A computational investigation of this effect is pursued for the case of mixtures of hydrogen and natural … function of hydrogen content of the fuel and the operating parameters of the engine. Of particular importance is the …

The production of hydrogen combined with carbon capture represents a possible option for reducing CO2 emissions in … atmosphere and anthropogenic greenhouse effect. Nowadays the worldwide hydrogen production is based mainly on natural gas … innovative system for hydrogen production and CO2 capture starting from these mixtures. The plant is based on steam methane …

Coal gasification is seen as an attractive way for hydrogen production. The main advantage of this approach is the low …, pressure-swing adsorption process for hydrogen separation, combined cycle for power production and essential auxiliary … loss takes place in the gasifier. The overall exergy efficiency of the coal-to-hydrogen system is equal to ca. 57%, while …

hydrogen as an energy carrier has significantly increased both for vehicle fuelling and stationary energy production from fuel … cells. The benefits of a hydrogen energy policy are the reduction of the greenhouse effect, principally due to the … centralization of the emission sources. Moreover, an improvement to the environmental benefits can be achieved if hydrogen is …

-cell module was installed in a high-pressure chamber. Hydrogen permeation and N2 leakage tests showed that H2/N2 selectivity … hydrogen recovery ratio of 82–97% when the feed flow rate was 0.05–0.17 Nm3 h−1 with a membrane surface area of 16. 6 cm2. …