▎ 摘　　要

NOVELTY - Magnesium hydride compound powder comprises 100 pts. wt. magnesium powder, 5.3-11.4 pts. wt. graphite, 0.5-2.3 pts. wt. graphene, and 0-1.7 pts. wt. antioxidant. USE - Used as magnesium hydride compound powder. ADVANTAGE - The powder improves the reaction kinetics of magnesium hydride. The method can achieve spraying raw material and water into the hydrogen generator to increase the reaction efficiency. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing magnesium hydride compound powder comprising adding raw material magnesium powder, graphite, graphene and antioxidant into vacuum ball mill, ball milling for 150-200 degrees C for 1-2.5 hours to obtain magnesium hydride powder of particle size 15-25 nm; and (2) magnesium hydride complex powder hydrogen producing and storing integrated device, comprising a feeding device, a water feeding device, a hydrogen generator (1) and a hydrogen separation device, where the hydrogen generator is provided with a powder spraying device, a water spraying device and a mixed gas output port, the powder spraying device is provided with a powder input port, the water spraying device is provided with a water inlet, the feeding device is provided with a material input port, nitrogen input port and a power output port, hydrogen separation device is provided with a mixed gas input port and a nitrogen output port and a hydrogen output port, the powder input port of power output port and the powder spraying device of the feeding device is connected with the water outlet of the water supply device is connected with the water inlet of the water spraying device, the mixed gas input port of the hydrogen separating device connected with the mixed gas output port of the hydrogen generator. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the magnesium hydride complex powder hydrogen producing and storing integrated device (Drawing includes non-English language text). Hydrogen generator (1) Powder spray ring (1.1) Circular spray pipe (1.2) Feeding tank (2) Feeding valve (2.1)