In-situ production of clean, ultra-high-pressure hydrogen by catalytic reforming of methanol and other alcohols.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- UNIV OF SOUTHERN CALIFORNIA
- Filing Date
- 2024-05-26
- Publication Date
- 2026-06-23
Smart Images
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Abstract
Claims
1. A metal hydroxide and / or an alcohol mixed with a metal oxide is dehydrogenated by a dehydrogenation reaction using a catalyst in a closed-pressure reactor at a predetermined initial temperature of 0 to 300°C and a predetermined initial pressure, to produce gaseous CO2. ２ Gaseous H that substantially does not contain ２ Including the manufacture of, The alcohol is mixed with the metal hydroxide and / or metal oxide to form a solution of the metal hydroxide and / or metal oxide, and the alcohol and the metal hydroxide and / or metal oxide are present in amounts sufficient to generate a gauge pressure of at least 10 bar after the reaction. A method for producing hydrogen.
2. The method according to claim 1, wherein the alcohol is a primary aliphatic alcohol, a diol, a triol, a polyol, polyethylene glycol, or a mixture thereof.
3. The method according to claim 1, wherein the metal hydroxide is an alkali hydroxide or an alkaline earth metal hydroxide.
4. The method according to claim 1, wherein the solution of the metal hydroxide and / or metal oxide further comprises water.
5. CO formed during the aforementioned dehydrogenation reaction ２ The method according to claim 1, wherein hydrogen having a CO2 content of less than 2% by volume is produced by capture by the metal hydroxide and / or metal oxide in situ or in a separate process.
6. The generated hydrogen produces a gauge pressure of 10 to 1000 bar. The hydrogen produced at this gauge pressure can be used immediately or stored at this gauge pressure for later use. The method according to claim 1.
7. The method according to claim 1, wherein the catalyst is a homogeneous catalyst comprising one or more ligands and a metal center.
8. The method according to claim 1, wherein the catalyst is a homogeneous catalyst selected from the group consisting of catalysts containing ruthenium, iridium, iron, manganese, or cobalt.
9. The method according to claim 1, wherein the catalyst is a homogeneous catalyst comprising a metal center and a pincer-type ligand.
10. The method according to claim 1, wherein the catalyst is a homogeneous catalyst immobilized on a surface by deposition, grafting, or any other immobilization method.
11. The method according to claim 1, wherein the catalyst is a heterogeneous catalyst.
12. The method according to claim 1, wherein the catalyst is a heterogeneous catalyst system comprising components selected from the group consisting of copper-based catalysts, indium-based catalysts, nickel-based catalysts, indium and nickel / gallium-based catalysts, and combinations thereof, which are modified or unmodified with other metals including lanthanides and / or precious metals.
13. The method according to claim 1, wherein the produced hydrogen is used in a fuel cell to generate electrical energy.
14. The method according to claim 1, wherein the carbonate species and bicarbonate species produced during the dehydrogenation reaction are regenerated by hydrogenation to reform the alcohol and the metal hydroxide and / or metal oxide.
15. A sealed reaction vessel having a maximum operating gauge pressure between 10 bar and a maximum of 1500 bar, and configured to accept a catalyst and a mixture of an alcohol and a metal hydroxide and / or metal oxide, A temperature transducer for monitoring the temperature inside the reaction vessel, A pressure transducer for monitoring the pressure inside the reaction vessel, A heater for heating the reaction vessel to a predetermined initial temperature, A hydrogen generator equipped with the following features.