Catalysts and Processes for Producing p-xylene from Biomass

摘要

Biomass is converted to a fluid hydrocarbon product comprising p-xylene by reaction over a zeolite catalyst. An iron-modified zeolite catalyst having a siliceous coating and methods of making the catalyst are also described.

主权项

1. A process for converting biomass to liquid hydrocarbons, comprising:
feeding biomass into a reactor; heating the biomass in the presence of an aluminosilicate zeolite catalyst; and wherein the aluminosilicate zeolite catalyst further comprises at least 0.2 wt % Fe wherein the Fe is not derived from biomass or reactor walls, or wherein the aluminosilicate zeolite catalyst has been manufactured to contain at least 0.2 wt % Fe or pretreated to contain at least 0.2 wt % Fe; and converting the biomass to a gaseous product stream comprising p-xylene.