Recovery of recycle content CO2 from pyrolysis flue gas
AssigneeExxonMobil Product Solutions Company
InventorsXianchun Wu, Avery L. Anderson, Daryl Bitting, Michael Gary Polasek, David Eugene Slivensky
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Abstract
A process and system for recovering a recycle content carbon dioxide is provided that can lower the carbon footprint and global warming potential of a chemical recycling facility. More particularly, a pyrolysis flue gas and/or a pyrolysis gas from waste plastic pyrolysis may be treated in an absorber system to thereby form a recovered CO2 stream comprising recycle content carbon dioxide. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the carbon dioxide recovery process and system herein.
Claims9
A chemical recycling process, the process comprising:
- (a) burning a recycle content fuel (r-fuel) to provide heat to a waste plastic pyrolysis reaction and to thereby form a pyrolysis effluent and a pyrolysis flue gas;
- (b) recovering CO2 from at least a portion of the pyrolysis flue gas to thereby form a recovered CO2 stream, wherein the recovering of step (b) comprises introducing at least a portion of the pyrolysis flue gas into an absorber system-to produce a CO2-depleted stream and the recovered CO2 stream;
- and
- (c) introducing at least a portion of the recovered CO2 stream as a feedstock into a gasification facility.
Dependencies are inferred from the claim text.