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Electrochemical Hydrogen Compression and Purification (EHPC)

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The new standard in hydrogen compression

Page last modified

April 11 2024

Electrochemical compression of hydrogen is based on the following mechanism: hydrogen is supplied to the anode side of the membrane surface where a platinum-alloy catalyst splits the molecule into protons. The electrons are transferred via an external circuit to the catalyst layer on the opposite side of the proton exchange membrane (PEM).

HyET Hydrogen supplies complete hydrogen compression and purification units. Our modular design allows us to build units exactly tailored to customer applications. Additionally, this modularity allows for incremental capacity increases should demand for compressed and/or purified hydrogen increase over time.

Pros & Limitations

No moving parts - lower maintenance

High reliability and availability

Low energy consumption

No vibrations

Compact

Silent and safe operation

Compression in one stage (>90 MPa)

Pt catalyst is sensitive to the presence of hydrogen sulphide and carbon monoxide

Specification

Specification Title	Specification Description
Design	Modular design \| More stacks = more capacity
Efficiency	Minimum: 2 kWh/kg \| Maximum: 7 kWh/kg
Hydrogen Flow Rate	Minimum: 1 Nm³/hr \| Maximum: 2000 Nm³/hr
Pressure	Input: 0.1 – 450 barg \| Output: 30 – 900 barg
Size	19” cabinet(s) (< 20 Nm³/hr) \| 10 ft container(s) (<2000 Nm³/hr)
Ambient Temperature	All climates
Customizability	Higher output pressure, alternative coolant and alternative installation areas possible.