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SIQENS GmbH is a German company that produces fuel cells (which use hydrogen to generate electricity) and hydrogen gas separation solutions. Their electrochemical hydrogen separation systems can separate hydrogen from other gases, achieving the purity and quality suitable for hydrogen fuel cells to run.

Australian representatives of SIQENS have been following the country’s interest in geological hydrogen – hydrogen that is produced naturally underground. Geological hydrogen is often found together with helium. Both gases are valuable, but need to be separated. So SIQENS saw an opportunity to demonstrate the efficiency of their hydrogen separation systems for the nascent Australian geological hydrogen industry.

Demonstrating hydrogen technology in Australia

Photo of a prototype rig and a pullup bannerHaving worked with CSIRO before, SIQENS decided to use our Hydrogen Technology Demonstration Facility (HTDF) to test and demonstrate their electrochemical hydrogen separation rig.

“We wanted to demonstrate our hydrogen separation technology in Australia because of the country’s natural hydrogen industry, and CSIRO’s global reputation for solid science made the HTDF the easy choice”, explained Matthew Purcell, Project Manager for SIQENS.

The HTDF provides a safe and well-provisioned environment for researchers, industry partners and businesses to scale, test and demonstrate new and emerging technologies across the hydrogen value chain. It has the ability to handle commercial-scale gas flows, including gas detection and safety protocols.

Demonstrating SIQENS hydrogen separation technology

With the help of the CSIRO team, Matthew set up the SIQENS hydrogen separation rig in the HTDF, with a mixture of hydrogen and helium as input. He put the rig through its paces with hydrogen-helium mixtures ranging from 10% to 75% hydrogen, to assess its performance in separating the gases under different conditions.

The CSIRO team applied their gas handling expertise to facilitate the project, and conducted a Hazard and Operability Study (HAZOP) to ensure that the research adhered to rigorous safety standards, an essential step when working with high-purity hydrogen.
“It worked from Day One. We showed that the rig can produce up to 4.7kg of fuel cell quality hydrogen per day, which is much higher volumes than had previously been demonstrated. This success underscores the potential for scaling up hydrogen production in both commercial and industrial settings,” Matthew said.

Importantly, Matthew was able to show potential collaborators how the technology works.

“The HTDF is great for collaboration between science and industry. We were able to bring visitors from industry and government sectors in to see our technology working. In fact 25 different organisations came to see our rig”, Matthew said.

Following this successful demonstration, the SIQENS team is working with Australian industry partners on next steps.

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SIQENS GmbH is a German company that produces fuel cells (which use hydrogen to generate electricity) and hydrogen gas separation solutions. Their electrochemical hydrogen separation systems can separate hydrogen from other gases, achieving the purity and quality suitable for hydrogen fuel cells to run.

Australian representatives of SIQENS have been following the country’s interest in geological hydrogen – hydrogen that is produced naturally underground. Geological hydrogen is often found together with helium. Both gases are valuable, but need to be separated. So SIQENS saw an opportunity to demonstrate the efficiency of their hydrogen separation systems for the nascent Australian geological hydrogen industry.

Demonstrating hydrogen technology in Australia

Having worked with CSIRO before, SIQENS decided to use our Hydrogen Technology Demonstration Facility (HTDF) to test and demonstrate their electrochemical hydrogen separation rig.

SiQENS demonstrating their hydrogen separation technology

“We wanted to demonstrate our hydrogen separation technology in Australia because of the country’s natural hydrogen industry, and CSIRO’s global reputation for solid science made the HTDF the easy choice”, explained Matthew Purcell, Project Manager for SIQENS.

The HTDF provides a safe and well-provisioned environment for researchers, industry partners and businesses to scale, test and demonstrate new and emerging technologies across the hydrogen value chain. It has the ability to handle commercial-scale gas flows, including gas detection and safety protocols.

Demonstrating SIQENS hydrogen separation technology

With the help of the CSIRO team, Matthew set up the SIQENS hydrogen separation rig in the HTDF, with a mixture of hydrogen and helium as input. He put the rig through its paces with hydrogen-helium mixtures ranging from 10% to 75% hydrogen, to assess its performance in separating the gases under different conditions.

The CSIRO team applied their gas handling expertise to facilitate the project, and conducted a Hazard and Operability Study (HAZOP) to ensure that the research adhered to rigorous safety standards, an essential step when working with high-purity hydrogen.
“It worked from Day One. We showed that the rig can produce up to 4.7kg of fuel cell quality hydrogen per day, which is much higher volumes than had previously been demonstrated. This success underscores the potential for scaling up hydrogen production in both commercial and industrial settings,” Matthew said.

Importantly, Matthew was able to show potential collaborators how the technology works.

“The HTDF is great for collaboration between science and industry. We were able to bring visitors from industry and government sectors in to see our technology working. In fact 25 different organisations came to see our rig”, Matthew said.

Following this successful demonstration, the SIQENS team is working with Australian industry partners on next steps.

Karen: Hello, my name is Karen Kozielski, and today I'm at the CSIRO Hydrogen Technology Demonstration facility located in Clayton in Melbourne.
The facility is a purpose built building which has been set up to allow the demonstration of new hydrogen technologies.
I'd like to introduce you to Matt Purcell, who is the project manager for SIQENS.

Matt: We've partnered with a commercial partner here in Australia to look at separating helium from hydrogen, because it's typically a very difficult process using other technologies.
And we've seen that the helium and hydrogen is a very commercially relevant mix here for geological hydrogen.
What we did is we simulated those gas mixes using hydrogen bottles here within the facility.
During that process, we tested gas mixes from as high as 55% hydrogen, down to 10% hydrogen in helium.
That allowed us to build up a simulation of what we could use for a larger commercial system in the future.

Karen: And what support did you get from CSIRO during the project?

Matt: The CSIRO has been instrumental in helping us get this project together. The facility here is world class, and that's allowed us to not only run a successful demonstration here, but also we had around 25 groups come through, from both commercial and government regulators.
That allowed us to show what the technology is capable of, and how we could implement that in the future, and some of the commercial aspects, but also the regulatory aspects that need to be looked at as we're ramping up these hydrogen technologies.

Karen: If you'd like to find out more about using the HTDF to demonstrate your hydrogen technology, please contact us at CSIRO.


Hydrogen Technology Demonstration Facility – join the discussion

You are invited to a short webinar about how CSIRO's Hydrogen Technology Demonstration Facility (HTDF) can be used to scale up, test and demonstrate hydrogen innovations.

Join us at 11am on 24 June 2025 to hear how you could access the HTDF, meet the team that runs the facility, and have your questions answered.

Register now