A hydrogen mixed gas generation apparatus includes a superheated vapor heating part that heats a raw water to generate a superheated vapor and further heats the superheated vapor to produce a mixed gas that includes a hydrogen gas, and a communication part that is communicable with a predetermined terminal device and transmits information to the terminal device. The superheated vapor heating part houses a reduction acceleration member and includes a heating pipe where the raw water flows therein, and a coil heater that is wound around the heating pipe. The reduction acceleration member includes a first metal member that is formed of a stainless steel and includes a cylindrical part where rod bodies respectively extend from both ends thereof and a second metal member that is formed of an iron and steel material and is housed in the cylindrical part in a state where a plurality thereof are bundled.

The invention relates to integrated methods for direct capture of carbon dioxide and water from the atmosphere and their conversion into value-added products in an economical and carbon negative fashion. In one embodiment of the present invention, a portion of the water captured in a DAC process is treated, bottled, and sold as value-added drinking water, thereby offsetting the cost of the capture process. Preferably the drinking water is bottled in low carbon footprint packaging to offer cost benefit while maintaining overall carbon neutrality or negativity. In other embodiments of the invention, a portion of the captured water is split by photovoltaic electrolysis into hydrogen and oxygen as further value-added products. In other embodiments of the present invention, a portion of the captured carbon dioxide is chemically reduced, preferably utilizing hydrogen from the aforementioned photovoltaic-electrolysis process, to produce methanol for use as a carbon-advantaged fuel.

Process for preparing a porous monolith comprising between 10% and 100% by weight of a semiconductor relative to the total weight of the porous monolith, which process comprises the following steps: a) a first aqueous suspension containing polymer particles is prepared; b) a second aqueous suspension containing particles of least one inorganic semiconductor is prepared; c) the two aqueous suspensions prepared in steps a) and b) are mixed in order to obtain a paste; d) a heat treatment of the paste obtained in step c) is carried out in order to obtain the monolith with multimodal porosity.

Disclosed herein are carbon doped tin disulphide (C—SnS.sub.2) and other SnS.sub.2 composites as visible light photocatalyst for CO.sub.2 reduction to solar fuels. The in situ carbon doped SnS.sub.2 photocatalyst provide higher efficiency than the undoped pure SnS.sub.2. Also disclosed herein are methods for preparing the catalysts.

The invention is a method for coproducing Hydrogen and certain metals by reducing a metal oxide(s) with MgH.sub.2 or with metal and water, wherein the non-water oxides used in the method include SiO.sub.2, Cr.sub.2O.sub.3, TiO.sub.2, SnO.sub.2, ZrO.sub.2, CuO, ZnO, WO.sub.3, Ta.sub.2O.sub.5, Cs.sub.2Cr.sub.2O.sub.7 or CsOH. The method reacts the MgH.sub.2 with a metal oxide or directly uses metal and water instead of a hydride, and initiates a reaction with the metal oxide. The reaction releases Hydrogen and reduces the subject oxide to metal.

A system for co-generating ammonia and power is described. The system includes oxygen transport reactors having an ion transport membrane (ITM) that separates a feed side and a permeate side. The feed side includes a feed inlet and a feed outlet, and the permeate side includes a permeate inlet and a permeate outlet. A first feed inlet receives water vapor to be converted into hydrogen and first oxygen, and a second feed inlet receives air to be split into nitrogen and second oxygen. The ITM selectively allows permeation of the first oxygen and the second oxygen to respective permeate side to support oxy-combustion process. A first feed outlet discharges hydrogen and a second feed outlet discharges nitrogen, where the hydrogen and the nitrogen are combined in a catalytic converter to form ammonia. Combustion gases from the oxygen transport reactors are used to run a gas turbine to extract power.

High purity hydrogen is produced by a steam reforming hydrogen production unit with at least one of a bayonet reactor for reforming steam and a hydrocarbon, a recuperative burner, and a regenerative burner such that the steam reforming unit produces little or no steam in excess of the steam reforming process requirements. High purity hydrogen is separated from the syngas exiting the reformer via a pressure swing adsorption unit and combined with high purity nitrogen from an air separation unit as feedstock to a Haber process ammonia synthesis unit. Compressors for the ammonia synthesis unit are driven by higher efficiency drivers than are possible using the low temperature steam conventionally exported from a steam reforming unit. Compression power requirements are reduced.

The invention is a method for coproducing Hydrogen and certain metals by reducing a metal oxide(s) with MgH.sub.2 or with metal and water, wherein the non-water oxides used in the method include SiO.sub.2, Cr.sub.2O.sub.3, TiO.sub.2, SnO.sub.2, ZrO.sub.2, CuO, ZnO, WO.sub.3, Ta.sub.2O.sub.5, Cs.sub.2Cr.sub.2O.sub.7 or CsOH. The method reacts the MgH.sub.2 with a metal oxide or directly uses metal and water instead of a hydride, and initiates a reaction with the metal oxide. The reaction releases Hydrogen and reduces the subject oxide to metal.

Disclosed is a catalyst of a fiber form having improved the lifespan performance while being applied to the oxidation-reduction reaction of a high temperature and a manufacturing method thereof. Particularly, disclosed is a composite nanofiber catalyst including a support having a fiber form and a metal catalyst included in the support and a manufacturing method thereof.

Disclosed is a hydrogen generation furnace using decomposition of biomass steam, which employs an infrared source and a furnace body with a water-accommodating structure. A steam separation-drying device is cylindrical and provided at an upper part of an interior of the furnace body and a cavity of the steam separation-drying device forms a secondary gasifier. A lattice plate is provided at a bottom of the interior of the furnace body. A lattice combustion grate is provided above a middle of the lattice plate. A steam distributor is provided outside a lower part of the furnace body. The furnace of the invention performs gasified gas separation as well as secondary oxidation and gasification and mixes steam with gas generated from biomass to perform a decomposition reaction for generating hydrogen.