Heat and water vapor are the only byproducts when used in a fuel cell. But when combusted, hydrogen releases some nitrogen oxide. The club calls it a "harmful pollutant" in details included in a ...
In addition to removing SO2, FGD systems are also able to lower dangerous pollutants like particulate matter (PM), nitrogen oxides (NOx), and mercury (Hg). The potential of FGD systems as a component ...