What differentiates this process from tradition biofuel production is the infusion of hydrogen — it removes the dilutive oxygen that most biofuels contain, leaving only the combustible isoparaffins and paraffins, which are indistinguishable from the molecules in refined petroleum.The only byproduct of the process is propane, which can be reintroduced into the production loop as a source of hydrogen. (discovermagazine.com)
Hedge funds are only a byproduct of a larger source. (ritholtz.com)
But it's not the only byproduct from the distillation process. (afr.com)