9 results about "Chemical hydrides" patented technology

A dehydrogenation reaction device includes a chemical hydride storage unit including a chemical hydride storage tank, a reaction unit including an acid aqueous solution storage tank, and a dehydrogenation reactor configured to generate hydrogen by reacting a chemical hydride with an acid aqueous solution, and a hydrogen storage unit including a hydrogen storage tank configured to store the hydrogen produced in the dehydrogenation reactor. The dehydrogenation reactor includes a body portion made of a metal and a reinforcement portion surrounding the outer surface of the body portion and including fiber reinforced plastic (FRP).

A method of producing a chemical hydride is described and which includes selecting a composition having chemical bonds and which is capable of forming a chemical hydride; providing a source of a hydrocarbon; and reacting the composition with the source of the hydrocarbon to generate a chemical hydride.

An exemplary embodiment of this disclosure provides a dehydrogenation reaction system comprising: a dehydrogenation reactor configured to generate hydrogen gas through a chemical reaction between an aqueous chemical hydride solution and an acidic aqueous solution; an acid storage tank configured to store acid supplied to the dehydrogenation reactor; a chemical hydride storage tank configured to store an aqueous chemical hydride solution containing a neutralizing agent supplied to the dehydrogenation reactor; and a controller configured to supply a first predetermined amount of water and a second predetermined amount of acidic aqueous solution to the dehydrogenation reactor, and, after supplying water and acidic aqueous solution to the dehydrogenation reactor, supply the aqueous chemical hydride solution to the dehydrogenation reactor at a first predetermined flow rate.

A dehydrogenation reaction device is disclosed. The device includes a chemical hydride storage unit including a chemical hydride storage tank, a reaction unit including an acid aqueous solution storage tank, and a dehydrogenation reactor for generating hydrogen by reacting a chemical hydride with an acid aqueous solution. The device further includes a hydrogen storage unit including a hydrogen storage tank for storing the hydrogen produced in the dehydrogenation reactor, and a recovery unit for recovering the product produced in the dehydrogenation reactor.

The present invention relates to a hydrogen generation method including generation of hydrogen by a dehydrogenation reaction of a solid-state chemical hydride with an acidic aqueous solution. The dehydrogenation reaction is performed by reacting hydrogen atoms of 1 mole of the chemical hydride with an acid and water in a molar ratio of 0.5 to 2.

An example embodiment of the present disclosure provides a dehydrogenation reaction system including a dehydrogenation reactor configured to generate a hydrogen gas through a chemical reaction between a chemical hydride aqueous solution and an acidic aqueous solution, an acid tank configured to store acid that is supplied to the dehydrogenation reactor, a chemical hydride tank storing a chemical hydride aqueous solution containing a neutralizing agent that is supplied to the dehydrogenation reactor, and a controller configured to supply a first predetermined amount of water and a second predetermined amount of acidic aqueous solution to the dehydrogenation reactor, and, after the water and the acidic aqueous solution have been supplied to the dehydrogenation reactor, to supply a chemical hydride aqueous solution to the dehydrogenation reactor at a first predetermined flow rate.

An operating method is disclosed for a dehydrogenation reaction system. The method includes providing a system having: an acid aqueous solution tank including an acid aqueous solution; a dehydrogenation reactor including a chemical hydride of a solid state and receiving an acid aqueous solution from the acid aqueous solution tank to react the chemical hydride with the acid aqueous solution to generate hydrogen; and a fuel cell stack receiving hydrogen generated from the dehydrogenation reactor to be reacted with oxygen to generate water and simultaneously to generate electrical energy. The method also includes recycling the water generated from the fuel cell stack to one or all of the acid aqueous solution tank, the dehydrogenation reactor, and a separate water tank. The acid is formic acid and, in in the dehydrogenation reactor, the temperature is in a range of 10° C. to 400° C. and the pressure is in a range of 1 bar to 100 bar.

A dehydrogenation reaction device includes: an acid aqueous solution storage unit including a first aqueous acid solution; a water storage unit including water; and a dehydrogenation reaction unit including a chemical hydride. The dehydrogenation reaction unit receives a second aqueous acid solution in which the first aqueous acid solution and water are mixed, and further reacts the chemical hydride and the second aqueous acid solution to generate hydrogen.

The present invention relates to a combined dehydrogenation reaction system, which comprises: an acidic aqueous solution tank, an exothermic dehydrogenation reactor, an LOHC tank and an endothermic dehydrogenation reactor, wherein the acidic aqueous solution tank has an acidic aqueous solution; the exothermic dehydrogenation reactor comprises a solid chemical hydride and receives the acidic aqueous solution from the acidic aqueous solution tank, and is used to make the chemical hydride and the acidic aqueous solution undergo an exothermic dehydrogenation reaction to generate hydrogen; the LOHC tank comprises a liquid organic hydrogen carrier (LOHC); the endothermic dehydrogenation reactor receives the liquid organic hydrogen carrier from the LOHC tank, and generates hydrogen by making the liquid organic hydrogen carrier undergo an endothermic dehydrogenation reaction using the heat generated by the exothermic dehydrogenation reactor.