Electrolysis system and method for operating an electrolysis system

Patent metadata

Field	Value
Publication number	US-2022380908-A1
Application number	US-202017776527-A
Country	US
Kind code	A1
Filing date	Nov 19, 2020
Priority date	Nov 27, 2019
Publication date	Dec 1, 2022
Grant date	—

Abstract

An electrolysis system for electrochemically breaking down water to form hydrogen and oxygen, having at least one electrolyser for electrochemically breaking down water to form hydrogen and oxygen. The electrolysis system also has a housing device for receiving the electrolyser, wherein the electrolyser is at least partially arranged in the housing device and the housing device is sealed relative to a first fluid surrounding the housing device. In the electrolyser, water is broken down to form hydrogen and oxygen. The hydrogen and the oxygen are directed out of the housing device.

First claim

1 .- 15 . (canceled)

16 . An electrolysis system for electrochemical decomposition of water to afford hydrogen and oxygen, comprising:
at least one electrolyzer for electrochemical decomposition of water to afford hydrogen and oxygen, a housing apparatus for accommodating the electrolyzer, wherein the electrolyzer is entirely arranged in the housing apparatus and the housing apparatus is tightly sealed off from a first fluid surrounding the housing apparatus, wherein a first pressure inside the housing apparatus is higher than a second pressure outside the house apparatus, a heat exchanger arranged in the housing apparatus for thermal equalization of a temperature in the housing apparatus and outside the housing apparatus.

17 . The electrolysis system as claimed in claim 16 , further comprising:
at least one oxygen sensor.

18 . The electrolysis system as claimed in claim 16 , further comprising:
at least one hydrogen sensor.

19 . The electrolysis system as claimed in claim 16 ,
wherein the housing apparatus comprises a chemical molecular scavenger for reducing hydrogen, oxygen and/or water arranged in the housing apparatus.

20 . The electrolysis system as claimed in claim 16 ,
wherein the housing apparatus comprises an electrochemical hydrogen pump arranged in the housing apparatus.

21 . The electrolysis system as claimed in claim 16 ,
wherein the housing apparatus comprises a shell, wherein the shell has a fluid-tightly sealing through-flow apparatus arranged in the shell.

22 . The electrolysis system as claimed in claim 16 ,
wherein a periphery of the electrolyzer comprising conduits and heat exchangers is arranged in the housing apparatus.

23 . A process for operating an electrolysis system for decomposition of water to afford hydrogen and oxygen, comprising:
providing the electrolysis system comprising at least one electrolyzer for electrochemical decomposition of water to afford hydrogen and oxygen, comprising a housing apparatus for accommodating the electrolyzer, wherein the electrolyser is entirely arranged in the housing apparatus and the housing apparatus is tightly sealed off from a first fluid surrounding the housing apparatus, wherein a first pressure inside the housing apparatus is higher than a second pressure outside the house apparatus, decomposing water to afford hydrogen and oxygen in the electrolyser, discharging the hydrogen and the oxygen from the housing apparatus.

24 . The process as claimed in claim 23 ,
wherein the first fluid is a gas mixture.

25 . The process as claimed in claim 24 ,
wherein the housing apparatus is filled with a second fluid.

26 . The process as claimed in claim 25 ,
wherein the second fluid employed is a gas or a gas mixture.

27 . The process as claimed in claim 26 ,
wherein the second fluid comprises a low-oxygen or oxygen-free fluid.

28 . The process as claimed in claim 25 ,
wherein the second fluid has a different composition to the first fluid.

29 . The process as claimed in claim 24 ,
wherein the first fluid is air.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Waidhas Manfred
• Wolf Erik

Classifications

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title

• C25B15/023

  Measuring, analysing or testing during electrolytic production · CPC title

• C25B9/05

  Pressure cells · CPC title

• C25B1/04 Primary

  by electrolysis of water · CPC title

• Y02P20/133

  Renewable energy sources, e.g. sunlight · CPC title