In-Situ Upgrading Of Biomass Pyrolysis Vapor By Cracking And Hydroprocessing

Abstract

Processes for thermal conversion of biomass are provided. The processes involve upgrading the pyrolysis vapor from a pyrolysis reactor. The steps include thermally converting a biomass feedstock in a pyrolysis reactor, recovering a pyrolysis vapor from the reactor, passing the pyrolysis vapor in contact with a cracking catalyst, a water-gas shift reaction catalyst, and a hydrotreating catalyst, and converting the resulting upgraded pyrolysis vapor into a liquid product. The resulting biooil liquid product is more refined, and the overall processes offer economic and energy efficiency.

Dependencies are inferred from the claim text.