Yes, methane pyrolysis. You can search for "CSIRO Hazer Process" for an example. As I understand it, you bubble methane through a very high temperature liquid m

Yes, methane pyrolysis. You can search for "CSIRO Hazer Process" for an example. As I understand it, you bubble methane through a very high temperature liquid metal, and it pyrolysis the methane into hydrogen and graphite. I am not sure of the economics or the conversion rate of methane.