The fundamental difference is that the Grannus process uses a Partial Oxidation (POx) reaction where natural gas is combined with a ‘lean’ supply of oxygen which prevents full combustion. In this method, 100% of the process plant’s natural gas input is used as feedstock in the production of syngas (hydrogen and CO). Further, because the process does not need to burn natural gas as fuel to produce heat, Grannus plants have no emission stack – hence near zero SOX and NOX emissions. This yields clear benefits when comparing this to an SMR process, whereby as much as 20% of the natural gas is burned, with the resulting air emissions, to make the heat required to drive the reforming reaction. These differences result in SMRs requiring more natural gas per ton of hydrogen produced as well as much greater air pollution. Other advantages of a Grannus Process plant are faster restarts in the event of a shutdown, lower maintenance costs (no reformer catalysts to replace), and higher average uptime.