Methods and systems for producing biofuel

A method of producing biofuels, comprising:

• supplying biomass feedstock to a hydrotreating unit to produce a first biofuel and a first biogenic off gas;
• delivering the first biogenic off gas to a pre-reforming unit to produce a second biogenic off gas having a higher methane content than the first biogenic off gas;
• delivering the second biogenic off gas to a methane reforming unit to generate a syngas having higher hydrogen content than the second biogenic off gas;
• delivering a first portion of the syngas to a pressure swing unit;
• delivering a second portion of the syngas to a methanol generation unit;
• generating a second biofuel from the second portion of the syngas;
• and
• delivering hydrogen from the methanol generation unit to the pressure swing unit or the hydrotreating unit.

A method of producing methanol, comprising:

• supplying biomass feedstock to a hydrotreating unit to produce a biofuel and a biogenic off gas;
• delivering the biogenic off gas to a methane reforming unit to generate a syngas having higher hydrogen content than the biogenic off gas;
• delivering the syngas to a hydrogen purification unit to produce a hydrogen stream and a gas stream;
• delivering a first portion of the hydrogen stream to the hydrotreating unit;
• delivering a second portion of the hydrogen stream to a methanol generation unit;
• and
• generating methanol using the methanol generation unit.