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 …

performance at low load conditions. This paper experimentally investigated the co-effect of cylinder cutoff and hydrogen addition … engine equipped with an electronically controlled hydrogen injection system and a hybrid electronic control unit. The engine …, respectively. For each cylinder closing strategy, the hydrogen energy fraction in the total fuel (βH2) was increased from 0% to …

recently been proposed as a sustainable transportation fuel and convenient one-way hydrogen carrier. Employing typical …

The membrane reactor is a novel technology for the production of hydrogen from natural gas. It promises economic small …-scale hydrogen production, e.g. at refuelling stations and has the potential of inexpensive CO2 separation. Four configurations of … to assess the trade-off between production scale and the construction of a hydrogen and a CO2 distribution infrastructure …

been designed for simulating the integration of renewable sources and hydrogen into island energy systems. The H2RES model …

Hydrogen is produced via steam methane reforming (SMR) for bitumen upgrading which results in significant greenhouse … gas (GHG) emissions. Wind energy based hydrogen can reduce the GHG footprint of the bitumen upgrading industry. This paper … is aimed at developing a detailed data-intensive techno-economic model for assessment of hydrogen production from wind …

This study deals with solar hydrogen production from the two-step iron oxide thermochemical cycle (Fe3O4/FeO). This … exothermic steam hydrolysis of the reduced metal oxide (wustite) for hydrogen generation. Thermodynamic and experimental … investigations have been performed to quantify the performances of this cycle for hydrogen production. High-temperature decomposition …

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 …

Hydrogen, a promising and clean energy carrier, could potentially replace the use of fossil fuels in the transportation … sector. Currently, no environmentally attractive, large-scale, low-cost and high-efficiency hydrogen production process is … for CO2-free production of hydrogen. The method is environmentally friendly since it uses only water and solar energy …