Process for initiation of oxidative steam reforming of methanol at evaporation temperature of aqueous methanol
OwnerYuh-Jeen HUANG, Chuin-Tih Yeh +2inventors
InventorsYuh-Jeen HUANG, Chuin-Tih Yeh, Chien-Te Ho, Liang-Chor Chung
Life of this patent
Estimating the term…
Abstract
A self-started OSRM (oxidative steam reforming of methanol) process at evaporation temperature of aqueous methanol for hydrogen production is disclosed. In the process, an aqueous methanol steam and oxygen are pre-mixed. The mixture is then fed to a Cu/ZnO-based catalyst to initiate an OSRM process at evaporation temperature of aqueous methanol. The temperature of the catalyst bed, with suitable thermal isolation, may be raised automatically by the exothermic OSRM to enhance the conversion of methanol.
Claims13
A self-started OSRM process at evaporation temperature of aqueous methanol for hydrogen production, comprising:
- pre-mixing an aqueous methanol steam and oxygen to obtain a mixture;
- feeding the mixture to a Cu/ZnO-based catalyst in an OSRM reactor with a reactor temperature lower than 100° C., wherein the Cu/ZnO-based catalyst comprises a CuPd/ZnO catalyst or a CuRh/ZnO catalyst;
- catalyzing an OSRM (oxidative steam reforming of methanol) process whereby the reactor temperature is raised;
- and
- yielding hydrogen at the reactor temperature substantially between 140° C. and 200° C. during the OSRM process, wherein the hydrogen contains substantially smaller than or equal to 1% CO by mole.
Dependencies are inferred from the claim text.