Integrated bioprocessing for fuel production

A method for generating a fuel or fuel blending product, comprising:

• recovering a fuel or fuel blending product and a residual product from a feed comprising algae-derived biomass;
• digesting at least a portion of the residual product to form a digestion gas and a digestion residue;
• and
• fermenting a feed comprising non-algal biomass to produce one or more oxygenates and a fermentation residue,
• wherein at least a portion of the one or more oxygenates are used as an input stream for recovering the fuel or fuel blending product.

A method for generating biofuels, comprising:

• growing algae in an algae growth environment;
• recovering a first fuel or fuel blending product and a residual product from a feed comprising algae-derived biomass derived from the algae growth environment;
• and
• converting a non-algal biomass feed into a second fuel or fuel blending product, the conversion including use of at least one product or energy output from the growing of algae or recovering of the first fuel or fuel blending product as a chemical, energy, or mechanical input for the conversion,
• wherein at least one compound produced in the conversion of the non-algal biomass into a second fuel or fuel blending product is used as a nutrient for said algae growth or as a reagent for said recovery of the first fuel or fuel blending product.

A method for generating biofuels, comprising:

• growing algae in an algae growth environment;
• recovering a first fuel or fuel blending product and a residual product from a feed comprising algae-derived biomass derived from the algae growth environment;
• converting a non-algal biomass feed into a second fuel or fuel blending product;
• and
• feeding CO2 generated from the conversion of the non-algal biomass feed to the algae growth environment.