5 results about "Compressed hydrogen" patented technology

A hydrogen production apparatus for a wind turbine is provided, including an electrolytic hydrogen production unit for producing hydrogen gas from electrical energy generated by the wind turbine, a compressor unit for compressing the produced hydrogen gas, and a sensor unit fluidly connected to the compressor unit for detecting an oil contamination of the compressed hydrogen gas. Thus, an oil contamination of the hydrogen gas produced by the hydrogen production apparatus is continuously monitored. Further, oil contamination of the hydrogen gas is detected before the hydrogen gas is discharged by the hydrogen production apparatus.

This invention relates to a water electrolysis system for producing compressed hydrogen, the system comprising a water electrolysis cell stack, a multiphase pump disposed downstream of the electrolysis cell stack, and a hydrogen gas-liquid separator. The multiphase pump is disposed between the water electrolysis cell stack and the hydrogen gas-liquid separator. The invention also relates to a method for producing compressed hydrogen in a water electrolysis system, the method comprising: supplying deionized water or liquid electrolyte to the water electrolysis cell stack; producing hydrogen in the water electrolysis cell stack; compressing the generated hydrogen and a mixture of entrained deionized water or liquid electrolyte in the multiphase pump; and performing gas-liquid separation of the compressed generated hydrogen and the entrained deionized water or liquid electrolyte mixture in the hydrogen gas-liquid separator.

This invention relates to the field of underground reservoir site selection technology, specifically to a method for selecting underground compressed hydrogen energy storage sites. The method includes: collecting multi-source borehole data from various candidate sites and extracting microscopic lithological characteristics, macroscopic stratigraphic characteristics, and parameter correlation characteristics; constructing a geological framework model based on the macroscopic stratigraphic characteristics, using data reflecting microscopic lithological characteristics and parameter correlation characteristics as soft data to generate several heterogeneous stochastic geological models; selecting several of these models as representative models and performing multi-physics coupled numerical simulations to obtain a series of performance index sets; quantifying the uncertainty of each performance index set and using a multi-objective optimization ranking method to comprehensively score and rank each candidate site; this method enables full utilization of multi-source borehole data, considers geological uncertainties, allows for high-fidelity stochastic geological modeling and simulation, and enables quantitative assessment of the performance and risk of multiple candidate sites.

This disclosure relates to a hydraulic drive system (1) particularly for compressing hydrogen, comprising a hydraulic cylinder (2), a fluid supply device (3), and a control device (4), wherein the inner cavity (5) of the cylinder (2) is divided into two chambers (51, 52) by means of a piston (6) of the cylinder (2), and fluid (7) is alternately supplied to the chambers by means of the fluid supply device (3) to cause the piston (6) to move back and forth, wherein the control device (4) is connected to the fluid supply device (3) and configured to control and / or regulate the back and forth movement of the piston (6) by means of a corresponding adjustment command to the fluid supply device (3), wherein the control device (4) is configured to calculate the current position of the piston (6) by means of source data back to the state description of the hydraulic cylinder (2) and / or the fluid supply device (3). This disclosure further relates to a compressor having such a hydraulic drive system (1).

The present invention relates to a system for treating gaseous hydrogen, comprising an inlet (10a) for supplying gaseous hydrogen, a drying unit (30) with an active drying material for removing moisture from the supplied hydrogen, an adsorption unit (50) with an active adsorption material for adsorbing impurities from the dried hydrogen, and an outlet (10b) for drawing off treated hydrogen. According to the invention, the mass ratio between the active drying material and the active adsorption material is in the range of 1.5:1 to 50:1. The invention further relates to a plant comprising such a system for providing compressed treated gaseous hydrogen and a method for treating gaseous hydrogen.