Lawrence Livermore scientists have discovered and
demonstrated a new technique to remove and store atmospheric carbon dioxide
while generating carbon-negative hydrogen and producing alkalinity, which can
be used to offset ocean acidification.
The team demonstrated, at a laboratory scale, a system that
uses the acidity normally produced in saline water electrolysis to accelerate
silicate mineral dissolution while producing hydrogen fuel and other gases. The
resulting electrolyte solution was shown to be significantly elevated in
hydroxide concentration that in turn proved strongly absorptive and retentive
of atmospheric CO2.