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US 12,716,419 B2Granted
Hydrogen compressing assembly, hydrogen production plant, and compressing method
AssigneeNuovo Pignone Tecnologie Srl
InventorsFrancesco Cangioli, Domenico Berterame, Angelo Grimaldi, Alberto Guglielmo
Life of this patent
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Abstract
A hydrogen production plant, to produce hydrogen having a compressing assembly, for increasing the pressure of the hydrogen. The compressing assembly has at least one barrel compressor and at least one integrally geared centrifugal compressor. Also disclosed are methods of compressing hydrogen.
Claims18
A hydrogen production plant, comprising:
- a hydrogen production stage configured to produce hydrogen;
- and
- a gas compressing assembly connected to the hydrogen production stage, the gas compressing assembly for increasing pressure of the hydrogen, the gas compressing assembly comprising:
- a low-pressure stage comprising a first compressing unit comprising a first pair of barrel compressors;
- an intermediate pressure stage downstream of the low-pressure stage, the intermediate pressure stage comprising a second compressing unit comprising a second pair of barrel compressors;
- and
- a final pressure stage downstream of the intermediate pressure stage, the final pressure stage comprising an integrally geared centrifugal compressor,
- wherein the intermediate pressure substage comprises:
- a first pair of condensers in series, one of the first pair of condensers connected to the low-pressure stage and one of the first pair of condensers connected to the input to the third barrel compressor;
- and
- a second pair of condensers separated by the fourth barrel compressor disposed therebetween.
8 more elements
A hydrogen production plant, comprising:
- a hydrogen production stage configured to produce hydrogen;
- and
- a gas compressing assembly connected to the hydrogen production stage, the gas compressing assembly for increasing pressure of the hydrogen, the gas compressing assembly comprising:
- a low-pressure stage comprising a first compressing unit comprising a first pair of barrel compressors;
- an intermediate pressure stage downstream of the low-pressure stage, the intermediate pressure stage comprising a second compressing unit comprising a second pair of barrel compressors;
- and
- a final pressure stage downstream of the intermediate pressure stage, the final pressure stage comprising an integrally geared centrifugal compressor,
- wherein the intermediate pressure substage comprises:
- a first pair of condensers in series, one of the first pair of condensers connected to the low-pressure stage and one of the first pair of condensers connected to the input to the third barrel compressor;
- and
- a second pair of condensers arranged so that:
- one of the second pair of condensers is connected to the outlet of the third barrel compressor and to the inlet of the fourth barrel compressor, and
- one of the second pair of condensers is connected to outlet of the fourth barrel and to the final pressure stage.
10 more elements
A method of compressing hydrogen gas, comprising:
- using water electrolysis to generate hydrogen gas;
- directing the hydrogen gas through a first stage that increases pressure from ambient pressure to a first pressure;
- directing the hydrogen gas at the first pressure through a second stage that increases pressure from the first pressure to a second pressure;
- and
- directing the hydrogen gas at the second pressure through a third stage that increase pressure from the second pressure to a third pressure,
- wherein the second stage comprises a pair of barrel compressors, a first pair of condensers upstream of the pair of barrel compressors, a second pair of condensers, at least one of which is downstream of the pair of barrel compressors, and a heat exchanger.
3 more elements
Dependencies are inferred from the claim text.