The novel reactor, described today in the prestigious academic journal Nature Chemistry, avoids mixing reactant gases by transferring oxygen between reactant streams via a solid state oxygen reservoir.
With our Hydrogen Memory Reactor we can produce pure, separated products. You could call it the perfect reactor
Ian Metcalfe, Professor of Chemical Engineering, Newcastle University
This reservoir is designed to remain close to equilibrium with the reacting gas streams as they follow their reaction trajectory and thus retains a ‘chemical memory’ of the conditions to which it has been exposed.
The result is that hydrogen is produced as a pure product stream, removing the need for costly separation of the final products.
Led by Newcastle University, UK, the research involved experts from the universities of Durham and Edinburgh and the European Synchrotron Radiation Facility in France, and was funded by the Engineering and Physical Sciences Research Council (EPSRC).
Most abundant element in the universe
“Chemical changes are usually performed via mixed reactions whereby multiple reactants are mixed together and heated. But this leads to losses, incomplete conversion of reactants and a final mixture of products that need to be separated.
“With our Hydrogen Memory Reactor we can produce pure, separated products. You could call it the perfect reactor.”
Hydrogen is the most abundant element in the universe. Produced through the splitting of water molecules, the shift towards renewable energy has led to a rise in so-called ‘green hydrogen’.
Hydrogen is a clean and useful energy store and can be used as a fuel, to generate electricity and can be stored and transported via the gas networks.
All processes – be they chemical, mechanical or electrical – are thermodynamically irreversible, and are less efficient that they otherwise could be.
This means that in traditional chemical reactors when hydrogen is produced it needs to be separated from other products, a process which is both costly and often energy intensive.
One step unit
Describing their new system, the team demonstrate a chemical reactor capable for the first time of approaching thermodynamically-reversible operation.
Reacting water and carbon monoxide to generate hydrogen and carbon dioxide, the system also prevents carbon being carried into the hydrogen produce stream as carbon monoxide or carbon dioxide, thus avoiding contamination of the product.
‘Flipping’ the reservoir a bit like a switch, the team showed it is possible to reach high conversion in the system so that carbon dioxide and hydrogen are produced at either end of the reactor as pure products.
“Whereas conventional hydrogen production requires two reactors and a separation, our reactor accomplishes all the steps in one unit,” adds Professor Metcalfe.
“And while we demonstrate the concept with hydrogen, the memory reactor concept may also be applied to other processes.”
The Latest on: Green hydrogen
via Google News
The Latest on: Green hydrogen
- Plug Power Acquires United Hydrogen Group and Giner ELXon June 24, 2020 at 9:28 am
In line with its vertical integration strategy in the hydrogen business, Plug Power Inc.’s PLUG has completed the buyouts of United Hydrogen Group Inc. and Giner ELX. The strategy, which part of a ...
- Austrian consortium unveils major decarbonization project focused on CO2 capture, green hydrogenon June 24, 2020 at 9:12 am
Its objective is to create a cross-sectorial value chain and to operate a full-scale plant by 2030 which will eventually capture almost 100% of the annually emitted 700,000 tons of CO2 at Lafarge’s ...
- Plug Power bet $123 million on the hydrogen economy. It is just getting startedon June 24, 2020 at 4:31 am
Plug Power just invested $123 million to buy two hydrogen companies, a move designed to drive down costs, increase revenue and create a path to a bigger market. The acquisition of United Hydrogen ...
- Plug Power Spikes 16% On Savvy Hydrogen Deals, Boosted Guidanceon June 24, 2020 at 1:56 am
Shares in Plug Power (PLUG) spiked 16% in Tuesday’s trading after the company announced that it has completed the acquisitions of United Hydrogen Group and Giner ELX. Shares continued to rise 2% in ...
- Latin America’s Potential Green Hydrogen Economyon June 22, 2020 at 12:58 am
Clean hydrogen markets can be a key part of the economic recovery from the COVID-19 pandemic, accelerate the decarbonization of Latin America’s electricity and transportation sectors, attract ...
- Enel to launch hydrogen business as part of green driveon June 19, 2020 at 5:15 am
Europe’s biggest utility Enel is set to launch a green hydrogen business next year to speed up its plans to become a carbon-free power producer by 2050.
- Enel seeks to open green hydrogen production facility next yearon June 19, 2020 at 2:09 am
The Italian energy giant is speeding up its plans for decarbonization of its worldwide power production. Enel, an energy giant from Italy, has announced its in ...
- EU to make big push for hydrogen, despite green concerns and infrastructure gapson June 17, 2020 at 5:25 am
Hydrogen is a clean fuel when burned, making it attractive for heavy industry, but most is derived from fossil fuels not renewable energy ...
- European renewable ambitions on track as green hydrogen era beckonson June 17, 2020 at 3:51 am
Countries must ensure COVID-19 does not derail green energy momentum, European Commission says as preliminary analysis shows EU bloc set to overshoot 32%-by-2030 target.
- System enables decentralized production of green hydrogenon June 16, 2020 at 3:20 pm
Hydrogen researchers at Graz University of Technology, together with the Graz-based start-up Rouge H2 Engineering, have developed a cost-effective process for the decentralized production of ...
via Bing News