Patent ID: 8696936
Filing Date: 2014-04-15
Classification: B01J,C01B,H01M,Y02E,Y02T

Abstract:
1. A hydrogen generating system for controlled on demand in situ hydrogen generation comprising: first storage means storing a first reagent; second storage means for storing demineralized water as a second reagent; a reactor in which the reagents are made to react to generate gaseous hydrogen, the reactor comprising reagent inlets and a reactor outlet, injecting means for controllably injecting a flow of the first reagent heated above its melting point into the reactor; a water injection system for injecting the demineralized water into the reactor; separating means connected to the reactor outlet for separating the gaseous hydrogen from a residual reaction product, as produced in the reactor; and hydrogen receiving means connected to the first separating means for receiving gaseous hydrogen extracted from the first separating means; wherein the first reagent is a pure aluminum-free metal reagent comprising at least one of alkali metals, alkaline earth metals, alkali metal alloys and alkali metal blends comprising alkali metals, alkaline earth metal alloys and alkaline earth metal blends comprising alkaline earth metals, and metal alloys and blends comprising at least one alkali metal and at least one alkaline earth metal, and the residual reaction product comprises metal hydroxide selected from alkali metal hydroxides and alkaline earth metal hydroxides; wherein the injecting means are metal reagent injecting means for controllably injecting a flow of the metal reagent in a liquid state into the reactor by extrusion; wherein the water injection system is for injecting at all times a stoichiometric amount of water, cool and in liquid state, with respect to the amount of the metal reagent being injected into the reactor such that a controlled metal reagent/water ratio is maintained in the reactor; wherein the reactor is a homogenous reactor; and the system further comprising means for keeping the storage means, the metal reagent injecting means, the water injection system, the reactor, the separating means and the hydrogen receiving means free of oxygen by selectively providing a vacuum in the system.