IN-SITU UPGRADING OF BIOMASS PYROLYSIS VAPOR USING ACID CATALYST AND ALCOHOL

摘要

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 an acid catalyst in the presence of alcohol, 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.

主权项

1. A process for the thermal conversion of biomass comprising the steps of:
a) thermal conversion of a biomass feedstock in a pyrolysis reactor; b) recovering a pyrolysis vapor from the reactor; c) passing the pyrolysis vapor in contact with an acid catalyst in the presence of an alcohol to produce an upgraded pyrolysis vapor; and d) converting the upgraded pyrolysis vapor from step c) into a liquid product.