Reseachers suggest that iron powder can be the next-generation fuel. Modern power plants can burn iron powder without fundamental changes. This means nano-sized iron can be the new recyclable fuel. When. Iron burns in oxygen. It transforms into iron oxide. Or. Rust. Then that rust can be transported into the chamber. There, hydrogen directly reduces the iron. The process is called Direct Reduced Iron (DRI). That means the process removes oxygen from iron.
Decreasing its oxidation. That means iron powder can be recycled as a carbon-free energy source. If. We think of the reduction process. The reduction process can happen by using electrolysis or even a cathode beam. In electrolysis, the iron-oxide waste sinks. Into alkaline water. Then iron is reduced on the cathode. The cathode beam requires vacuum chambers. That makes it impractical. In those systems, the electricity can come from wind generators. Or the system can use multiple different energy sources. This is one way to make a carbon-free energy plant.
“The process relies on a cycle in which iron powder is burned to generate heat, producing iron oxide, commonly known as rust. Hydrogen produced using renewable energy can then remove the oxygen from the iron oxide, restoring the metal so it can be used again. “This works in a cycle that emits no carbon dioxide or environmentally harmful substances,” said Julia Schuler from KIT’s Institute for Industrial Production (IIP). “(ScitechDaily, A New Iron Age? Scientists Uncover a Potential Game Changer for Clean Energy)
“Iron might play a very special, but economically meaningful role for reaching climate-neutrality and in reliably making renewables available,” said Schuler. “(ScitechDaily, A New Iron Age? Scientists Uncover a Potential Game Changer for Clean Energy)
“Whether a new “iron age” emerges in electricity generation will depend largely on two unresolved technical and economic questions: how extensively existing coal power plants must be modified and how efficiently iron oxide can be converted back into reusable iron. The simulations indicate that iron could complement hydrogen in a climate-neutral energy system, but its practical competitiveness will depend on how these processes perform outside the model.” (ScitechDaily, A New Iron Age? Scientists Uncover a Potential Game Changer for Clean Energy)
“Iron dust flame at lab scale. For presentation purposes, the photo has been rotated by 90 degrees. Credit: Janik Hebel” (ScitechDaily, A New Iron Age? Scientists Uncover a Potential Game Changer for Clean Energy)
Closed-cycle systems can also remove carbon.
Another. A very interesting method is to use closed-cycle systems. The system can burn nano-sized carbon. When carbon is burned, it forms carbon dioxide. And. If the system can split carbon dioxide molecules. Or separate carbon from oxygen. It. Can create a system that recycles fuel. It can use a carbon filter to capture carbon from exhaust gas. Or. The system needs energy to create laser beams.
Or some other electromagnetic radiation. That oscillates the carbon dioxide molecule. That oscillation should separate oxygen from carbon. The idea for that system is “stolen” from the Soviet closed-cycle diesel engine.
The idea was that. The system drives diesel’s exhaust gas through a carbon filter. That filter. It can separate carbon from the exhaust gas. That means the system removes carbon dioxide from the exhaust gas. That allows the diesel to be used as oxygen. This system allows a submarine to use diesel while it's underwater. Air cleaners can be blowers. That blows air through the carbon filters. That removes carbon dioxide from the air. That. Allows. It allows it to travel. A long time underwater. That system makes better air-cleaning possible.
And that is necessary. When. The submarine is under ice. The system can use diesels to fill the space with carbon dioxide. When. The fire ends. The filter system cleans the air.
The same way. Recycling scuba systems use only the tube; there is a non-return valve. When. A diver pushes air out. That. Air travels through the carbon filter. That filter removes carbon dioxide from the air. This kind of system allows scuba divers to stay underwater without a time limit. That kind of system. It can. Allow. Astronauts to stay longer in space.
https://scitechdaily.com/a-new-iron-age-scientists-uncover-a-potential-game-changer-for-clean-energy/
















