Process for generating a hydrocarbon feedstock lignin

摘要

The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution.

主权项

1. A refinery process comprising: hydroprocessing refinery residuals and a lignin-containing feedstock to yield a biofuels feedstock, wherein the lignin-containing feedstock comprises lignin with phenolic polymers separated from black liquor from a pulping process wherein the lignin is separated from the black liquor from the pulping process by gaseous carbon dioxide (CO2) injection, and wherein the biofuels feedstock has been reduced in oxygen content and average molecular weight relative to the lignin as a result of hydroprocessing of the lignin contained therein.