Method for producing hydrogen
OwnerErling Reidar Andersen, Erling Jim Anderseninventors
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Abstract
The process for producing hydrogen gas according to the present invention consists of reacting aluminum with water in the presence of sodium hydroxide as a catalyst. In one aspect of the present invention, there is provided a process for producing hydrogen gas, comprising the steps of: providing an aqueous solution containing between 0.26 M and 19 M NaOH in a vessel. The next step consists of reacting aluminum with water at the surface of the solution to generate a region of effervescence at the surface of the solution and a precipitate sinking from the region of effervescence to the bottom of the vessel. The region of effervescence is kept separated from the precipitate at the bottom the vessel, to prevent any precipitate from mixing with the aluminum therein.
Claims16
A process for producing hydrogen gas, comprising the steps of:
- providing an aqueous solution in a vessel, said solution containing between 0.26 M and 19 M NaOH;
- introducing aluminum in said solution;
- reacting aluminum with water at a surface of said solution thereby generating a region of effervescence at said surface of said solution and a precipitate;
- and
- while effecting said step of reacting, forming an accumulation of precipitate at a bottom region of said vessel, separating said region of effervescence from said accumulation and preventing precipitate from said accumulation from mixing with aluminum reacting with water in said region of effervescence.
A process for producing hydrogen gas, comprising the steps of;
- providing an aqueous solution in a vessel, said aqueous solution containing a portion of NaOH and a portion of water;
- introducing a portion of aluminum in said aqueous solution;
- reacting said portion of aluminum with said portion of water, thereby producing hydrogen gas;
- and
- while effecting said step of reacting, maintaining constant said portion of NaOH in said vessel, adding additional portions of water and additional portions of aluminum in said vessel according to a rate of consumption of said portion of aluminum and said portion of water therein, and causing a concentration of NaOH in said aqueous solution to oscillate equal amounts up and down in response to said rate of consumption of said portion of water in said step of reacting and volumes of water added in said step of adding additional portions of water, respectively.
Dependencies are inferred from the claim text.