A proposal for a novel multi-functional energy system for the production of hydrogen and power

Biofuels: Microbially Generated Methane and Hydrogen

“…Gasification involves reacting coal or another solid hydrocarbon with both steam and oxygen under high temperatures and pressures. Comparatively speaking, steam reformation achieves an energy yield of 0.74-0.81 J H 2 /J natural gas (Jin et al, 2008), whereas coal gasification achieves an yield of 0.59-0.65 J H 2 /J coal (Jin et al, 2008).…”

Potential hydrogen and non-condensable gases production from biomass pyrolysis: Insights into the process variables

“…Demirbas [64] demonstrated the SCWG of fruit shells using an autoclave reactor at 377-477 1C and 23-48 MPa, and showed that as the temperature and pressure increased, the total gas yield also increased. Fruit shells, such as walnut, hazelnut, cotton cocoon, sunflower, and almond gave 61.3%, 63.5%, 64.7%, 65.7%, and 66.4%, respectively, at 477 1C.…”

“…SMR is the most practical technology currently available for hydrogen production and it occupies a share of 40-50% of the total hydrogen production with an energy consumption rate of only about 1.23-1. 35 GJ-NG/GJ-H 2 [65].…”

“…Coal gasification is relatively less mature than the SMR process. The main disadvantages of coal gasification are its complexity and expense, although this technology contributes 18% of the total hydrogen production, together with energy consumption of a magnitude of 1.54-1.69 GJ-coal/GJ-H 2 [65]. Electrolysis presents paths for hydrogen production that have several advantages, for example, water is much more abundant than hydrocarbons and hence, depletion and geopolitical concerns are fewer; the net energy costs of making hydrogen through electrolysis must be viewed in an economic context, and hydrogen can be produced from renewably generated electrical power [72].…”

On a Pd/InAlAs metamorphic high electron mobility transistor (MHEMT)-based hydrogen sensor

“…The energy systems based on hydrogen such as hydrogen-electricity system, have drawn considerable attention because of its renewable resources without any contamination to the environment [1,2]. However, continuous monitoring of hydrogen gas is necessary for the hydrogen-based energy systems due to the safety consideration.…”