The 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.
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.