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1. WO2012061005 - HYDROCARBONS FROM PYROLYSIS OIL

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[ EN ]

THAT WHICH IS CLAIMED:

A process for converting pyro lysis oil to a hydrocarbon fuel, comprising:

a) contacting a pyrolysis oil with a feed comprising one or more alcohol species in a reactor to form an alcoholysis product, said alcoholysis product optionally being in a product mixture with solid residue and/or an un-reacted quantity of the one or more alcohol species;

b) contacting said alcoholysis product with a hydrotreating catalyst in the presence of hydrogen in a reaction zone under reaction conditions sufficient to convert at least a portion of said alcoholysis product into one or more fuel range hydrocarbon products.

The process of claim 1 , wherein said pyrolysis oil is reacted with the one or more alcohol species at a temperature between 150°C and 500°C, optionally between 250°C and 500°C; a pressure of between 500 psig and 4000 psig, optionally between 1500 psig and 4000 psig; and for a duration of between 2 min and 240 minutes, optionally between 15 min and 120 min.

The process of either claim 1 or 2 wherein said alcoholysis product is formed in a mixture with solid residue, further comprising a separation step wherein said solid residue is separated out from said mixture using a separator, said separation step optionally being carried out by filtration, extraction, decantation, centrifugation and any combinations thereof, said separator optionally being selected from the group consisting of a gas-liquid, liquid-liquid, three-phase, horizontal, vertical, tubular, rotary, turbine, centrifugal and any combinations thereof.

The process of any preceding claim wherein said alcoholysis product is formed in a mixture with an un-reacted quantity of said one or more alcohol species, the process further comprising a step for recovering the un-reacted quantity of the one or more alcohol species from said product mixture and recycling at least a portion as the feed of step (a).

5. The process of claim 4, wherein recovering is accomplished by distillation.

6. The process of any preceding claim, wherein the contacting between pyro lysis oil and the feed occurs in the presence of a catalyst, optionally a solid catalyst, wherein the catalyst is selected from the group consisting of alumina, silica- alumina, hafnia, titania, zirconia and mixtures thereof.

7. The process of any preceding claim, wherein the feed comprises one or more CI — C30 alcohols.

8. The process of any preceding claim, wherein the feed is selected from the group comprising methanol, ethanol, butanol, tetrahydrofurfuryl alcohol, ethylene glycol, propylene glycol, glycerol, fatty alcohols and mixtures thereof, in particular ethanol.

9. The process of any preceding claim, wherein the mass ratio of said pyro lysis oil to the feed is 0.05 to 10, optionally 0.25 to 0.5.

10. The process of any preceding claim, wherein said reaction conditions comprise a temperature of between about 120°C and 450°C, optionally between about 150°C and 350°C, and a reaction pressure of between about 500 psig and 3500 psig, optionally between about 800 psig and 1500 psig.

11. The process of any preceding claim, wherein the hydrotreating catalyst is selected from the group consisting of cobalt (Co), molybdenum (Mo), nickel (Ni), titanium (Ti), tungsten (W), zinc (Zn), antimony (Sb), bismuth (Bi), cerium (Ce), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), manganese (Mn), rhenium (Re), iron (Fe), platinum (Pt), iridium (Ir), palladium (Pd), osmium (Os), rhodium (Rh), ruthenium (Ru), nickel, copper impregnated zinc oxide (Cu/ZnO), copper impregnated chromium oxide (Cu/Cr), nickel aluminum oxide (Ni/Al203), palladium aluminum oxide (Pd/Al203), cobalt molybdenum (CoMo), nickel

molybdenum (NiMo), nickel molybdenum tungsten (NiMoW), sulfided cobalt molybdenum (CoMo), sulfided nickel molybdenum (NiMo), metal carbides, or any combinations thereof.

12. The process of any preceding claim, wherein contacting the alcoho lysis product with the hydrotreating catalyst is carried out in the presence of a high boiling point hydrocarbon solvent in addition to said hydrogen to produce one or more fuel range hydrocarbon products and excess hydrocarbon solvent, optionally wherein said high boiling point hydrocarbon solvent is selected from the group consisting of diesel oil, atmospheric gas oil, vacuum gas oil, cracked stock gas oils such as light cycle oil, heavy cycle oil, fluid catalytic cracking decant oil, coker gas oil, thermal cracking distillate, visbreaking distillate, other refinery stream comprising predominantly Cl l— C25 hydrocarbons and any mixtures thereof.

13. The process of claim 12, wherein the excess hydrocarbon solvent is separated from the one or more fuel range hydrocarbons product, e.g. by distillation.

14. The process of any preceding claim, wherein the feed is formed from biomass through fermentation processes.

15. A process for producing fuels from biomass comprising pyrolyzing a biomass to form a pyrolysis oil and then converting said pyrolysis oil to a hydrocarbon fuel in a process as claimed in any preceding claim.