Integrated FCC biomass pyrolysis/upgrading

摘要

Integrating a biomass pyrolysis and upgrading process into a fluid catalytic cracking unit. The process uses conventional FCC feed and a mixture of a solvent and biomass to produce upgraded fuel products. A slurry stream composed of solid biomass particles and a solvent is fed into an FCC riser through a slurry pump to achieve biomass pyrolysis and in situ pyrolysis oil upgrading. The catalytic cracking of the conventional petroleum feed also occurs in the riser.

主权项

1. A method of upgrading biomass to fuel products comprising:
a) mixing a biomass feed stream with a solvent to produce a mixed feed stream, b) transporting the mixed feed stream through a slurry pump, mixer, or mixer and slurry pump to a riser, c) combining the mixed feed stream (a) with a conventional FCC feed stream and regenerated catalyst in the riser,
wherein the mixed feed stream is injected at one or more injection points along the riser that are distinct from the injection point of the conventional FCC feed stream, d) cracking and upgrading the mixed feed stream and the conventional FCC feed stream to upgraded fuel products in the riser, e) separating the upgraded fuel products from deactivated catalyst in reactor/stripper, f) regenerating the deactivated catalyst in regenerator, and recycling the regenerated catalyst to the riser (c).