2 Summary Hydrogen has the potential to provide a clean, storable, transportable and renewable source of energy that can meet the need for power throughout the world. Biological production of hydrogen, especially by photosynthetic microorganisms that use sunlight for energy, provides a renewable source of hydrogen for fuel cells. Nitrogen-fixing cyanobacteria can produce hydrogen in an aerobic ...

Gas switching reforming (GSR) is a promising technology for natural gas with inherent CO2 capture. Like conventional steam methane (SMR), GSR can be integrated water-gas shift and pressure swing adsorption units pure hydrogen production. The resulting GSR-H2 process concept was techno-economically assessed in this study. Results showed that achieve 96% capture at avoidance cost of 15 $/ton (inc...

let a; b; k 2 k and u ; v 2 u(k). we show for any idempotent e 2 k, ( a 0 b 0 ) is e-clean i ( a 0 u(vb + ka) 0 ) is e-clean and if ( a 0 b 0 ) is 0-clean, ( ua 0 u(vb + ka) 0 ) is too.

Biomass is becoming a large renewable resource for power generation; it is involved in higher frequency in environmentally clean processes, and even it is used for biofuels preparation. On the other hand, hydrogen – other energy source – can be produced in a variety of methods including gasification of biomass. In this study, the production of hydrogen by gasification of biomass waste is examin...

In this paper, two different power-to-fuel solutions for sustainable fuel synthesis are investigated from the energetic, environmental, and economic standpoints. Both consider a pressurized PEM electrolysis section, fed by renewable sources, where high purity green Hydrogen is produced. Then, separate processes of distinct chemicals. first case, hydrogen mixed with CO 2 , sequestered an industr...

Abstract The US Department of Energy is working with fuel vendors to develop accident tolerant fuels (ATF) for the current fleet light water reactors (LWRs). ATF should be more resilient loss coolant scenarios and help extending life operating LWRs. One proposed concepts use iron-chromium-aluminum (FeCrAl) alloys cladding fuel. A concern in using ferritic FeCrAl that this type may result an inc...