Abstract Palladium is the most prominent material in both scientific and industrial research on gas storage, purification, detection, catalysis due to its unique properties as a catalyst hydrogen absorber. Advancing dynamic optical phenomena of palladium reacting with hydrogen, transduction gas-matter reaction into light-matter interaction attempted visualize surface chemistry behaviors. The si...

This paper reports on the recovery of zinc, cobalt and manganese by two-step leaching of zinc-plants purification residue with sulfuric acid. The residue, hot filter press cake (HFC), contains 14 % ZnO, 4.8 % Co3O4 and 22.9 % MnO. Effects of different parameters are determined and used to optimize the process. With acid to hot filter press cake (HFC) stoichiometry of 0.85, acid concentration of...

In this study, hydrogen production performances of groundnut shells in a circulating fluidized bed gasifier is evaluated by employing previously developed and validated model. Basically, we simulate gasification system that connected to water-gas shift reactor, for purification with the temperature 1150 K. We find amount gas produced from increases 49.25 kmol 68.83 (per 1000 kg raw shells) when...

Decarbonization of the energy sector is a topic paramount importance to avoid irreversible global warming. Hydrogen has been considered as most suitable option replace fossil fuels in industrial, residential and transport applications. However, hydrogen production almost limited reforming hydrocarbons, which release large amounts CO2, thus requiring several downstream purification processes. Ca...

Hydrogen sulfide exists mostly as a detrimental byproduct in the gas processing units well refineries, and it must be eliminated from natural streams. In Sulfur Recovery Unit (SRU), hydrogen is converted into elemental sulfur during modified Claus process. Efficiency of recovery significantly depends on reaction furnace temperature. this work, effect oxygen acid enrichment temperature according...