Wind-generated electricity is often considered a particularly promising option for producing hydrogen from renewable energy sources. However, the economic performances of such systems generally remain unclear because of unspecified or favorable assumptions and operating conditions. The aim of...

A methodology for assessing the sustainability of hydrogen production using solid fuels is introduced, in which three sustainability dimensions (ecological, sociological and technological) are considered along with ten indicators for each dimension. Values for each indicator are assigned on a...

Brewery wastewater was converted H2 by anaerobic sludge in batch experiments. A three-factor three-level experimental design of Box-Behnken method was adopted to find the optimum H2 production conditions. The effects of three major influence factors, temperature, pH and brewery wastewater...

Experiments were conducted in an Anaerobic Batch Reactor (ABR) to assess the influence of pH, organic load and retention time on hydrogen production using pig manure as substrate. The study was conducted in two stages: the first stage focused on the effect of pH and the second stage assessed the...

To address the problem of fossil fuel usage at the Missouri University of Science and Technology campus, using of alternative fuels and renewable energy sources can lower energy consumption and hydrogen use. Biogas, produced by anaerobic digestion of wastewater, organic waste, agricultural...

A functional hydrogen producing consortium was isolated from soil by heat pre-treatment technique and hydrogen production at different substrate concentration was evaluated. The forest soil was heat pre-treated at 65, 80, 95, 105 and 120 °C temperature for 1 h. As revealed by PCR-DGGE analysis...

The effect of substrate concentration on continuous H2 production from a sucrose-rich synthetic wastewater was investigated in this work. The maximum H2 production rate of 2.89 m3 H2/m3/d achieved at 7000 mg COD/L while the peak ethanol concentration of 2840 mg/L was observed at 5000 mg...

Cellulose, a major component of woody biomass, was gasified to hydrogen rich gas using a reduced nickel catalyst in hot-compressed water of around 350 °C and 18 MPa. During the gasification, steam reforming and methanation can occur, and the methanation was prevented at subcritical condition....

A detailed comparative study on thermodynamic and experimental analyses of glycerol reforming for hydrogen production has been conducted in terms of the effects of temperature, pressure, water to glycerol feed ratio, feeding reactants to inert gas ratio and feeding gas flow rate (residence...

One of the main disadvantages of the dark fermentation process is the cost associated with the stages needed for obtaining H2 producing microorganisms. Using anaerobic microflora in fermentation systems directly is an alternative which is gaining special interest when considering the...