id	keyword
cet-15721	hydrogen
cet-15721	energy
cet-15721	production
cet-15721	carbon
cet-15721	biomass
cet-15721	electrolysis
cet-15721	technologies
cet-15721	emissions
cet-15721	cost
cet-15721	hydrogen production
cet-15721	public
cet-15721	gasification