Renewable Jet Production
AssigneeExxonMobil Technology and Engineering Company
InventorsXiaochun XU, Madelyn M. Evans
Life of this patent
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Abstract
Systems and methods are provided for production of renewable jet fuel and/or jet fuel blending component fractions. The systems and methods provide for formation of jet boiling range fractions via hydrodeoxygenation and catalytic dewaxing of bio-derived feeds. The systems and methods for reducing or minimizing recycle and/or forming only a jet boiling range product and a lower boiling range product can be facilitated based on selection of a suitable feedstock and/or based on selection of suitable reaction conditions and catalyst for the catalytic dewaxing.
Claims19
A method for producing a renewable jet boiling range fraction, comprising:
- contacting a bio-derived feedstock with a hydrotreatment catalyst under effective hydrotreatment conditions to produce a deoxygenated effluent comprising a deoxygenated liquid fraction;
- contacting at least a portion of the deoxygenated liquid fraction with a dewaxing catalyst comprising a 10-member ring, one-dimensional zeotype framework structure and Pt, Pd, or a combination thereof under effective dewaxing conditions comprising a weighted average bed temperature of 300° C. or more to produce an isomerized effluent;
- and
- separating the isomerized effluent to form a jet boiling range fraction as a bottoms fraction and one or more lower boiling fractions, the jet boiling range fraction comprising a T90 distillation point of 300° C. or less, a freeze point of −40° C. or less, and a flash point of 38° C. or more.
Dependencies are inferred from the claim text.