Hydrogen recycling at DHBW Mannheim


June 4, 2022

Image titel:


Hydrogen recycling at DHBW Mannheim

The EH2C team: Kai Tornow, Sven Schmitz and Christian Geml (from left to right) in the hydrogen and fuel cell lab at DHBW Mannheim

The EH2C team: Kai Tornow, Sven Schmitz and Christian Geml (from left to right)

While hydrogen’s deployment as an energy carrier is only in its infancy, this element already forms the backbone of many different industrial processes around the globe. In order to ensure hydrogen feedstock is handled as efficiently as possible, the ELCH electrochemical research cluster at DHBW Mannheim university is carrying out a pioneering joint project which is looking into hydrogen recycling by means of electrochemical compression. The focus of the EH2C project is on recycling hydrogen that accrues during the production of solar cells and other semiconductors.

Unusually for a German scientific institution, DHBW Mannheim has its own hydrogen and fuel cell laboratory, situated at its Eppelheim campus, with an electrochemical hydrogen compressor or EHC, making it an ideal base for the research project. The EH2C initiative is, in fact, a follow-up to the Horizon 2020 project known as MEMPHYS which succeeded in developing a system to purify and compress hydrogen.

EH2C now takes this method four levels higher in terms of technology readiness, meaning that the process could be adopted by industry very soon. The research team, led by Sven Schmitz, is concentrating on one specific use case: the hydrogen that arises during the manufacturing of solar cells and other semiconductors.

Up until now, this gas has been either diluted with air or released into the atmosphere through combustion – without being utilized. In Europe alone, this equates to several thousand tons of hydrogen a year. In addition to a detailed viability analysis, EH2C plans to optimize the electrochemical compressor to make it possible to filter hydrogen out of the waste gases from semiconductor production and compress it in order to facilitate its reuse.

Flexible, scalable and reliable
The technical challenge when recycling hydrogen in the semiconductor industry is the number of small- and medium-sized production plants involved. Traditional reprocessing methods, however, are only designed with large-scale recycling in mind, making it relatively uneconomical to scale down. The compact and modular form of the EHC recycling system purifies both small and large waste gas flows and is therefore suitable for a broad spectrum of manufacturing facilities. What’s more, the composition of the waste gas and thus its hydrogen content can vary widely depending on the fabrication method and the particular process step. Here, too, this particular recycling system is the right answer since it adapts well to the changing circumstances and guarantees a consistently high purity level.[…]

… Read this article to the end in the latest H2-International

Authors: Julia Barisic & Christian Geml – DHBW Mannheim

Here are interesting and current articles on the topic of hydrogen – stocks and the stock market!

Economic prospects for companies in the hydrogen sector | Future, stocks & hydrogen companies on the stock exchange and more…

Which hydrogen companies will prevail in the competitive market in the long term? Get tips and cartwheels and learn more about risks or opportunities. Our stock market specialist and expert author Sven Jösting reports critically, independently and competently.

Nov 29 2023

H2 from seawater

Researchers have succeeded in producing hydrogen directly from seawater In Australia, researchers...
Nov 29 2023

Opportunity for green fuel

Axpo drives H2 production in Switzerland forward The Swiss energy corporation Axpo has identified...
Nov 29 2023

Hydrogen in the Nuremberg metropolitan region

Potential innovation center for hydrogen technologies The German city of Nuremberg is aiming to...
Nov 16 2023

Hydrogen on trend

At the moment, hydrogen is – at least in the energy sector – on everyone’s lips. This is also...
Nov 13 2023

Norway doubles number of H2 projects

Hesitant politicians put the brakes on the expected upswing Activities in the Norwegian hydrogen...
Nov 09 2023

Quicker scaling

Interview with Tassilo Gast from Emerson If hydrogen is expected to change the world, then the...
Nov 09 2023

Germany gets steering committee for H2 standards

Norm writing is a very dry but also very important topic – especially when a completely new...
Nov 06 2023

DWV independent again

Since August 2023, the German hydrogen and fuel cell association (Deutscher Wasserstoff- und...
Nov 06 2023

A hydrogen system for all

Polish company Virtud shows the way About 20 years ago, solar power and Passivhaus design captured...
Nov 06 2023

District becomes hydrogen pioneer

Hydrogen Regions series: HyExpert region AachenPLUS There was once a well-known German sports...
Oct 31 2023

Overcoming hurdles – restructuring – creating knowledge

Hydrogen Regions series: HyExpert region AachenPLUS The HyExpert region of AachenPLUS in Germany...
Oct 31 2023

Photovoltaics and hydrogen in the real world

Guest article by Karl-Heinz Remmers, PV pioneer For a long time the public has held a deep...
Oct 25 2023

National hydrogen strategy 2.0

German government steps up the pace Coordination was hard enough when there were “only” four...
Oct 25 2023

Green full supply all year round

HPS inaugurates home with solar hydrogen storage system In Schöneiche, a suburb east of Berlin,...
Oct 17 2023

Hy-Fcell offered technical tours for the first time

Landesmesse Stuttgart has put the industry event just renamed Hy-Fcell on course for growth. In...
Oct 16 2023

The hydrogen megatrend

Dear readers In recent years, hydrogen has managed to move out of its niche and onto the political...
Oct 16 2023

China’s picking up the pace

Sven Jösting’s stock analysis In the past weeks, news reached us from The Central Country: China...
Oct 16 2023

Siemens Energy – “We don’t need a corporate turnaround”

That the wind subsidiary Siemens Gamesa will still cost its parent company a lot of money has been...
Oct 12 2023

Cummins – Hydrogen as a driver of growth

My recommendation to use the temporarily very weak prices in Cummins for continued and new buys...
Oct 12 2023

Ballard Power – Platform partnership with Ford

The press conference for the second quarter delivered a number of results that allow a very...

1 Comment

  1. John Graf

    Kai Tornow requested a journal article from several years ago. Our group at NASA has been developing some ion transport membrane systems capable of extracting high purity oxygen from air. I was unaware of your group. We are always looking to share our results and learn from others. If you are interested in meeting by zoom, I can tell you about our recent work with oxygen separation systems, solid state compressors, and learn about your group. John Graf, john.c.graf@nasa.gov


Leave a Reply