Hydrogen generation by coupling methanol steam reforming with metal hydride hydrolysis

Methanol steam reforming (MSR) and hydrolysis of metal hydrides are two important hydrogen generation reactions with complementary characteristics. Coupling of the above two reactions leads to better hydrogen generation performance. The CO2 generated from MSR can be absorbed by the hydroxide generated from hydrolysis, leading to higher H-2 purity. The hydrolysis heat can be utilized to drive the endothermic MSR reaction. By carrying out MSR on a CaH2-CuO composite, a hydrogen density of 6.56 wt% based on all the reactants with H-2 purity higher than 99% can be obtained at 250 degrees C.

Automated summary

Methanol steam reforming (MSR) and hydrolysis of metal hydrides are two important hydrogen generation reactions that can complement each other. Combining these reactions can improve hydrogen generation performance. The CO2 produced from MSR can be absorbed by the hydroxide generated from hydrolysis, resulting in higher H2 purity. The heat from hydrolysis can be used to drive the endothermic MSR reaction. By conducting MSR on a CaH2-CuO composite, a hydrogen density of 6.56 wt% based on all reactants with H2 purity higher than 99% can be achieved at 250 degrees Celsius.