An energy-independent water electrolysis fuel cell water vehicle system is suggested. The energy-independent water electrolysis fuel cell water vehicle system suggested in the present invention comprises: a water electrolysis processing unit for performing a water electrolysis process by using supplied water while power is not being received from the outside; a gas control unit for adjusting the pressure of a hydrogen gas produced through the water electrolysis process, storing the hydrogen gas in a hydrogen storage by using a gas compression method, and then supplying the hydrogen gas; a fuel cell for generating electrical energy on the basis of the supplied hydrogen gas; and a power control unit for supplying the generated electrical energy as a driving power for the energy-independent water electrolysis fuel cell water vehicle system.

A chemical reaction system has: an electrochemical reaction device including a cathode configured to reduce carbon dioxide and thus generate a carbon compound, an anode configured to oxidize water and thus generate oxygen, a cathode flow path facing the cathode, an anode flow path facing the anode, and a separator between the anode and the cathode; and a dehydrogenation device configured to remove hydrogen from a first fluid introduced from the cathode flow path, the first fluid containing the hydrogen and the carbon compound, and the hydrogen being removed using oxygen.

A system and method for generating arsine are disclosed. The system may include a shell having a top interior surface. The system may also include a cathode-anode assembly positioned in the shell and forming an elongated structure substantially parallel to the top surface. The cathode-anode assembly may include a first electrode and a second electrode surrounding the first electrode and forming a gap therebetween. The second electrode may include a plurality of channels along a length of the second electrode. The plurality of channels may allow circulation of electrolyte within and around at least a portion of the cathode-anode assembly and allow gases generated in response to current applied to the cathode-anode assembly to escape from the cathode-anode assembly. Such gases may be used as precursor gases for a high-volume metal-organic chemical vapor deposition (MOCVD) operation.

The present invention relates to a combustion additive comprising a colloidal solution containing dispersed fine metal particles. The present invention also relates to a method for producing the colloid. More particularly the present teaching relates to a combustion additive having a colloid, wherein the colloid comprises metal particles providing in an alkaline aqueous solution, the metal particles being dispersed within that solution and having an average diameter in the range of 30 nm to 30 μm. The colloid can partly/fully substitute water of a water injection system or used as an air humidification component for combustion.

A hydrogen production system and a method for controlling the same are provided. A renewable energy power generation system supplies electric energy to a hydrogen production device. The hydrogen production device discharges acceptable-purity hydrogen to the main hydrogen branch and discharges unacceptable-purity hydrogen to the mixed hydrogen branch. The mixed hydrogen branch receives high-purity hydrogen. The mixed hydrogen branch includes two valves to respectively control volumes of the high-purity hydrogen and the unacceptable-purity hydrogen flowing into the hydrogen mixing device in the mixed hydrogen branch, to control mixed hydrogen in the hydrogen mixing device to be the acceptable-purity hydrogen. The acceptable-purity hydrogen in the hydrogen mixing device is discharged to a purification branch in the main hydrogen branch, or a purification branch in the mixed hydrogen branch.

The present disclosure relates to a low temperature method for the production of pure hydrogen using a methane rich stream as raw material, and to perform in-situ catalyst regeneration. The process involves the decomposition of methane into COx-free hydrogen in an electrochemical/chemical membrane/chemical reactor or chemical fluidised reactor. As the methane decomposition reaction progresses, carbon structures (whiskers) are accumulated at the catalyst surface leading eventually to its deactivation. The catalyst regeneration is achieved using a small fraction of the produced hydrogen to react with carbon formed at the catalyst surface provoking the carbon detachment, thus regenerating the catalyst. This is achieved either by chemical/electrochemical methanation of carbon at the catalyst interface with hydrogen/protons or by rising the temperature of the catalyst, ideally keeping the reactor temperature constant. A single compact device is described, enabling the hydrogen production, hydrogen purification and catalyst regeneration.

A method of trapping and removing contaminants from a source of contamination using a microparticle media includes the steps of: providing the microparticle media, wherein the microparticle media includes a plurality of microparticles, and wherein each of the microparticles includes a substrate having pores; prehydrating the pores of the microparticles by mixing the microparticle media with at least one of a water or water of a electrolysis supernatant solution to form a prehydrated microparticle media having a portion of the water or water of the electrolysis supernatant solution absorbed or adsorbed in the pores of the microparticles; introducing the prehydrated microparticle media to the contaminants, wherein the prehydrated microparticle media trap or bind to the contaminants; and separating the prehydrated microparticle media and the contaminants trapped or bound to the prehydrated microparticle media from the source of contamination.

Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.

Reactive sorber is a flow sorption column for purification of gases at pressures till hundreds of bars by way of chemical capturing of impurities by metallic powder reactant (6). The powder is continuously rubbed in the process of mechanical stirring and is sorted with the help of a filtering divider (8) into two fractions, activated particles and exhausted material (12). The latter is removed into a waste collector (11, 13), which has a level meter calibrated in the units of purity of the gas exiting from the sorber.

Various embodiments include a method for electrochemical utilization of carbon dioxide comprising: reducing carbon dioxide to a product gas in an electrolysis cell of an electrolyzer; delivering the product gas comprising carbon dioxide into a gas scrubbing apparatus; scrubbing the product gas to remove carbon dioxide using an absorbent in the gas scrubbing apparatus; regenerating the absorbent in an electrodialysis cell of an electrodialysis unit; at least partly recycling the regenerated absorbent into the gas scrubbing apparatus; and at least partly recycling the carbon dioxide released during the regenerating as reactant gas into the electrolyzer.