HyET Hydrogen is a leading organization in the field of electrochemical hydrogen compression, founded in 2009. In 2017, the first commercially viable Electrochemical Hydrogen Compressor (EHPC), the HCS 100, was introduced by HyET.

HyET Hydrogen’s electrochemical hydrogen compressor fills essential technology gaps in the hydrogen supply, storage, and conversion chain. Our electrochemical compression technology allows simultaneous separation and purification of hydrogen gas present in a (mixed) gas stream.

HyET HCS100, hydrogen compressor stack, is the building block for compressor capacities varying from 2 kg/d for Building Heat & Power up to 2000 kg/d for Transport & Mobility markets.

According to the company needs, more stacks can be added.

Operational Principle: 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). The current enables the transport of hydrogen against its concentration gradient, from low pressure on the anode side to high pressure on the cathode side in a single step.

Technology features: The core of HyET compressors is a series of compression cells that each act as an individual compressor and together form a compression stack. Currently, stacks have a capacity of 10 kg/day. HyET is currently developing stacks that can compress 50 kg/day of hydrogen up 1000 bar.

The hydrogen compressor stack (HCS) introduces a great help in the electric mobility sector. Though the compressor can be used in a wide range of industries, the use of fuel cell battery for long distance transportation is clearly one of the biggest issues to be addressed for the future of electric transport.

Furthermore, in the HCS, hydrogen is separated from a blend of hydrogen and natural gas