Patent No. EP4105490 (titled "Process And Apparatus For Operating A Compression System") was filed by AIR Products And Chemicals on Jun 9, 2022. The application was issued on Mar 5, 2025.
Operating a multistage compression system for compressing gas produced using electricity generated from renewable energy sources, such as hydrogen produced by electrolysis of water. The system maintains operation in a low power mode (LP mode) even when renewable energy production is insufficient, preventing compressor seal wear and maintaining compressor lifespan. The LP mode is achieved through a control system that monitors gas flow and adjusts compressor operation to maintain sufficient gas pressure for compression, while also conserving electricity and reducing storage requirements.

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