A system for the production of at least one biofuel, biofuel additive or biochemical and including FT production apparatus comprising at least one FT reactor configured for the production of FT hydrocarbons from synthesis gas; and upgrading apparatus fluidly connected with the FT production apparatus and configured to receive, via one or more inlets, a first component comprising FT hydrocarbons and a second component comprising biomass oil and decrease the degree of unsaturation thereof via hydrogenation. A method of producing a biofuel or biochemical by introducing a first component comprising FT hydrocarbons and a second component comprising at least one triglyceride into an upgrading apparatus configured to receive the first component and the second component and decrease the degree of unsaturation thereof via hydrogenation, and extracting upgraded product comprising at least one component selected from the group consisting of fuels and chemicals from the upgrading apparatus.