Tag: Anaerobic Digester

Biogas as a source of hydrogen

There’s Hydrogen In That There Biogas

I don’t suppose that anyone actually dreams of hydrogen, but in the bio-economy there just isn’t quite enough of it and we read about it and sometimes think about it so much that we might as well be dreaming about it. For those newer to the field, one of the problems of using biomass to make a fuel is that a carbohydrate contains around 53% oxygen by weight and needs about 16% more hydrogen that it contains to make a hydrocarbon fuel. That’s one of the reasons that biofuels are often esters (such as biodiesel) or alcohols (such as ethanol),...