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Hydrogen already is needed today in some processes and some processes can only be made clean with clean hydrogen. The hydrogen ladder offers a good overview of
by legulere 4y ago
Hydrogen already is needed today in some processes and some processes can only be made clean with clean hydrogen.
The hydrogen ladder offers a good overview of where hydrogen makes sense and where it doesn’t: https://www.linkedin.com/pulse/clean-hydrogen-ladder-v40-michael-liebreich https://www.linkedin.com/pulse/clean-hydrogen-ladder-v40-mic...
For me methane pyrolysis from biogas seems like the most realistic way of carbon capture (while also producing hydrogen).
- kamray23 4y agoDon't even think about carbon capture. Affording it any thought as a production process in the current world is "conservation of energy forbids it" level of impossible. Technology doesn't make it better either, it's just not feasible with the current energy output of the human race, not with (the very impressive) biogas pyrolysis nor with literal "air plastic". Existing processes are the best use of hydrogen, and for those I'm fine with anything. It just makes little sense for energy applications.
- legulere 4y agoThe problem with carbon capture usually is extracting CO2 from the air and storing it without being emitted again. Methane pyrolysis uses hardly more energy than steam reforming and leaves solid carbon as a side product. You don't need to concentrate carbon from the atmosphere, that was already done, solid carbon can be stored way more easily than the gas CO2. It has a very limited scale though, as you want to only use waste products for biogas production.