TWO STAGE PROCESS FOR PRODUCING RENEWABLE BIOFUELS

摘要

A process for treating bio-oil or pyrolysis oil used to produce renewable biofuel. In a first stage, solids and/or organic reactive molecules within the feedstream are reduced without substantially deoxygenating the organic reactive molecules in the feedstream. The resulting feedstream is then introduced into a second hydrotreatment stage to produce deoxygenated bio-oil or pyrolysis oil.

主权项

1. A process for treating bio-oil or pyrolysis oil used to produce renewable biofuel, the process comprising:
(a) introducing a feedstream containing bio-oil or pyrolysis oil to a first stage and reducing solids and/or organic reactive molecules within the feedstream in the first stage without substantially deoxygenating the organic reactive molecules in the feedstream; (b) introducing the feedstream having reduced solids and/or reduced organic reactive molecules to a second stage, wherein the second stage is a hydrotreatment stage, and further wherein the temperature in the second stage is greater than the temperature in the first stage and the pressure in the first stage is less than or equal to the pressure in the second stage and producing deoxygenated bio-oil or pyrolysis oil in the second stage.