Process for producing fuels from pyrolysis oil
AssigneeUop LLC
InventorsMichael J. Brodeur-Campbell, Travis C. Bowen
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Abstract
A process for deoxygenating a pyrolysis oil stream comprises purposely limiting complete deoxygenation of the pyrolysis oil stream having a high oxygenate concentration to provide a hydrotreated pyrolysis oil stream that is sufficiently reduced in oxygenate content to mix with oil. By not fully deoxygenating the pyrolysis oil stream, the deoxygenation reaction can be run with little risk of undesirable polymerization reactions plugging the reactor.
Claims20
A process for deoxygenating a pyrolysis oil comprising:
- providing a pyrolysis oil feed stream having an oxygen concentration of at least about 25 wt %;
- and
- hydrotreating said pyrolysis oil stream in the presence of a hydrogen stream and a hydrotreating catalyst to partially deoxygenate said pyrolysis oil stream to provide a hydrotreated pyrolysis oil stream comprising an oxygen concentration of greater than 5 wt % and no more than about 20 wt %.
A process for deoxygenating a pyrolysis oil comprising:
- providing a pyrolysis oil feed stream having an oxygen concentration of about 30 to about 50 wt %;
- hydrotreating said pyrolysis oil stream in the presence of a hydrogen stream and a hydrotreating catalyst having a neutral catalyst support to partially deoxygenate said pyrolysis oil stream to provide a hydrotreated effluent stream;
- and
- separating a hydrotreated effluent stream to provide a hydrotreated vapor stream and a hydrotreated pyrolysis oil stream comprising an oxygen concentration of greater than 5 wt % and no more than about 20 wt %.
A process for deoxygenating a pyrolysis oil comprising:
- providing a pyrolysis oil feed stream having an oxygen concentration of at least about 25 wt %;
- and
- hydrotreating said pyrolysis oil stream in the presence of a hydrogen stream and a hydrotreating catalyst having a titanium oxide support at a reaction temperature of about 200 to about 340° C. to partially deoxygenate said pyrolysis oil stream to provide a hydrotreated pyrolysis oil stream comprising an oxygen concentration of greater than 5 wt % and no more than about 20 wt %.
Dependencies are inferred from the claim text.