FCC co-processing of biomass oil
AssigneeExxonMobil Technology and Engineering Company
InventorsXiaochun Xu, Hyung Rae Kim, Chengrong Wang, Colin L. Beswick
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Abstract
Systems and methods are provided for improving product yields and/or product quality during co-processing of fast pyrolysis oil in a fluid catalytic cracking (FCC) reaction environment. The systems and methods can allow for co-processing of an increased amount of fast pyrolysis oil while reducing or minimizing coke production for a feedstock including fast pyrolysis oil and a conventional FCC feed. The reducing or minimizing of coke production can be achieved in part by adding a low molecular weight, non-ionic surfactant to the mixture of fast pyrolysis oil and conventional FCC feed.
Claims19
A method for co-processing pyrolysis oil, comprising:
- exposing a feedstock comprising
- a) 5.0 wt % to 35 wt % of a pyrolysis oil, the pyrolysis oil comprising an oxygen content, excluding water, of 20 wt % or more,
- b) 0.01 wt % to 1.0 wt % of a non-ionic surfactant having a molecular weight of 500 g/mol to 1200 g/mol, and
- c) 65 wt % or more of a feed comprising 10 wt % or more of hydrogen and a T10 distillation point of 300° C. or higher,
- to a catalyst in a reactor under fluid catalytic cracking conditions to form one or more liquid product fractions, wherein the feedstock comprises a weight ratio of non-ionic surfactant to pyrolysis oil of 0.0005 to 0.0024.
Dependencies are inferred from the claim text.