TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred Method: The method further comprises altering the pressure of the reactor or providing a pH component to the reactor, thus adjusting a rate of formation of the hydrogen gas. The method may also comprise providing a catalyst component (20) to the reactor, and adding a surfactant component to alter the viscosity of the composition. The glycerol component is present in the composition in a stoichiometric excess relative to the borohydride component. The borohydride component further comprises a carrier fluid, and the borohydride particles are suspended in the carrier fluid. The method comprises recycling the carrier fluid from the reactor after the step of reacting borohydride component with glycerol component for incorporating additional borohydride particles in the carrier fluid for subsequently providing the borohydride component to the reactor.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The borohydride component is sodium borohydride (NaBH4), lithium borohydride (LiBH4), potassium borohydride (KBH4), and/or rubidium borohydride (RbBH4). The composition is free of water. The pH component comprises an acid (preferably acetic acid), a base, and/or a buffer, thus respectively increasing, decreasing, or maintaining the rate of formation of the hydrogen gas. The catalyst component is carbon-, platinum-, palladium-, ruthenium-, and/or titania-based catalyst. Preferred Parameter: The borohydride component comprises borohydride particles having an average particle diameter of less than 300 mm.    TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Components: The reactor is a batch reactor, a semi-batch reactor, or a continuous-flow reactor. The reactor includes a catalyst bed and a steam reformer. A storage vessel (22) is used for storing the hydrogen gas removed from the reactor.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The carrier fluid is mineral oil, petroleum jelly, saturated vegetable, plant, and animal oils and fats, and/or non-saturated vegetable, plant, and animal oils and fats. EXAMPLE - About 3.7405 g glycerol was placed into a reaction chamber (24). Six pellets (=0.2 g each) made of compressed sodium borohydride powder were successively added into the reaction chamber once the total amount of hydrogen was released from each pellet. At the same time when each individual pellet was placed into the reaction chamber, 0.2 mL of 5 wt.% acetic acid in aqueous solution was injected into the reaction chamber. The reactions of the first five pellets had completed within 15 minutes. The reaction of the sixth pellet was slowed down by the presence of byproduct and by depletion of the glycerol. Hydrogen release rate increased in the presence of the acetic acid. The alcoholysis reaction of the sodium borohydride and the glycerol completes much faster in the presence of the acetic acid (the pH component) than without it.