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US 2023/0399761 A1Published application
Method and apparatus for the utilisation of waste heat from an electrolysis reaction for the generation of steam
AssigneeL'Air Liquide, Société Anonyme pour l'Etide et l'Exploitation des Procédés George Claude
InventorsFabrice DELCORSO, Tanguy POLINE
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Abstract
The invention relates to a method and an electrolysis arrangement, in which waste heat generated during an electrolysis reaction is utilised efficiently. The waste heat is transferred by means of a heat transfer medium to a water-containing medium. The thereby pre-heated water-containing medium is supplied to a degassing device. Due to the pre-heating of the water-containing medium, less steam from a steam-generating device is required for degassing of the water-containing medium.
Claims13
A method comprising:
- generating at least one product gas by an electrolysis reaction by an electrolyser;
- providing a water-containing medium to generate steam;
- supplying the water-containing medium to a degassing device, and degassing the water-containing medium in the degassing device;
- supplying the degassed water-containing medium to a steam generating device, and generating steam from the degassed water-containing medium in the steam generating device;
- supplying a portion of the steam generated in the steam generating device to the degassing device, wherein degassing of the water-containing medium is effected by the supplied steam;
- transferring at least part of the waste heat generated during the electrolysis reaction to the water-containing medium by means of a heat transfer medium before the water-containing medium is supplied to the degassing device.
3 more elements
An electrolysis arrangement, comprising:
- an electrolyser configured to produce at least one product gas by an electrolysis reaction;
- a degassing device configured to degas a water-containing medium;
- a steam generating device configured to evaporate degassed water-containing medium to produce steam;
- means for feeding a portion of the generated steam from the steam generating device to the degassing device;
- at least one heat transfer device for transferring waste heat generated during the electrolysis reaction to the water-containing medium by means of a heat transfer medium, whereby the heat transfer device is arranged upstream of the degassing device.
2 more elements
Dependencies are inferred from the claim text.