Patent ID: 9447350
Filing Date: 2016-09-20
CPC Classification: C10G,C10L,C11B,C11C,Y02E,Y02P,Y02W

Claim Text:
1. A process for upgrading bio-oil, comprising: a) combining a bio-oil and a diluent to form a feed stream, the bio-oil comprising oxygenated hydrocarbons and having a total oxygen content greater than about 5 wt %; b) charging the feed stream to a preheater and heating the feed stream to a temperature in a range of from about 20 to about 450° C., thereby forming a heated feed stream; c) charging the heated feed stream to a hydrodeoxygenation unit operated at a temperature in a range of from about 300 to about 500° C. wherein at least a portion of the oxygen is removed from the bio-oil, thereby forming an effluent stream comprising the diluent, water, and an at least partially upgraded bio-oil; and d) separating at least a portion of the at least partially upgraded bio-oil from the effluent stream, thereby forming a product stream comprising the at least partially upgraded bio-oil having a total oxygen content lower than the total oxygen content of the bio-oil, wherein the diluent is: (i) present in the feed stream in an amount ranging from about 0.5 to about 24.5 wt %; and (ii) selectred from the group consisting of a fatty acid methyl ester (FAME), biodiesel, biomass-derived diesel, a recycled portion of the at least partially upgraded bio-oil, and combinations thereof.