Biomass is carbon based and is composed of a mixture of organic molecules containing hydrogen, usually including atoms of oxygen, often nitrogen and also small quantities of other atoms, including alkali, alkaline earth and heavy metals. These metals are often found in functional molecules such as the porphyrins which include chlorophyll which contains magnesium.
The technology for synthetic fuel production from biomass has been developed seriously for the past 20 years. A lot of the efforts have been around the Fischer-Tropsch process, developed in the 1930s by the Germans, and used to convert coal into liquid fuel. Efforts to use Fischer-Tropsch to make liquid fuels from biomass has been largely unsuccessful with some expensive failures. And this is where we will make a difference.