Method for operating an electrolysis system, and electrolysis system
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsDirk Wall, Sven Schumann
Life of this patent
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Abstract
An electrolysis system includes at least one electrolyzer for generating hydrogen and oxygen as products, and at least two downstream compressors for compressing at least one of the products produced in the electrolyzer. A method of operating the electrolysis system in a part-load operation of the electrolyzer that is optimized in terms of efficiency and is also cost-effective. During the part load operation of the electrolyzer, a first group of compressors is operated in part-load operation, while the compressor(s) of a second group can be switched on or off individually for full-load operation.
Claims7
A method for operating an electrolysis system with at least one electrolyzer for generating hydrogen and oxygen as products, and a plurality of downstream compressors for compressing at least one of the products generated in the electrolyzer, the method comprising:
- operating the electrolyzer in a part-load operation;
- and
- while operating the electrolyzer in the part-load operation, operating a first group of the downstream compressors in part-load operation, and individually switching on and off one or more compressors in a second group of the downstream compressors;
- wherein each of the one or more compressors in the second group of the downstream compressors is independently operated in a manner exclusively selected from a group consisting of being switched off and being turned on to operate at full load;
- and
- wherein the first group of the downstream compressors includes a plurality of compressors and a number of compressors in the first group is smaller than a number of compressors in the second group.
An electrolysis system, comprising:
- at least one electrolyzer for generating hydrogen and oxygen as products;
- a plurality of compressors connected downstream of said at least one electrolyzer and configured for compressing at least one of the products generated in said at least one electrolyzer;
- a controller configured, in a part-load operation of said at least one electrolyzer, to operate a first group of the downstream compressors in part-load operation, and to individually switch on and off one or more compressors in a second group of the downstream compressors;
- wherein each of the one or more compressors in the second group of the downstream compressors is independently operated in a manner exclusively selected from a group consisting of being switched off and being turned on to operate at full load;
- and
- wherein the first group of the downstream compressors includes a plurality of compressors and a number of compressors in the first group is smaller than a number of compressors in the second group.
Dependencies are inferred from the claim text.