Recycled content liquified pyrolysis gas as feedstock to cracker facility
AssigneeExxonMobil Product Solutions Company
InventorsDaryl Bitting, David Eugene Slivensky, Xianchun Wu
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Abstract
Recycled content liquified pyrolysis gas (r-LPyG) is produced using a process and system that optimizes the production, separation, liquification, storage, loading, and/or transporting of gases generated from the pyrolysis of waste plastic. The r-LPyG can be utilized in a variety of end use applications, including as a raw material for other chemicals and chemical intermediates.
Claims19
A process for producing one or more recycled content product streams from a cracker facility, the process comprising:
- a) pyrolyzing waste plastic to thereby produce a recycled content pyrolysis gas (r-pygas);
- b) liquifying at least a portion of the r-pygas to thereby provide a recycled content liquified pyrolysis gas (r-LPyG);
- c) cracking a hydrocarbon feed stream in a cracking furnace of a cracker facility to thereby produce a cracked furnace effluent stream;
- d) combining at least a portion of the r-LPyG with the cracked effluent stream to thereby produce a combined recycled content stream;
- and
- e) separating the combined recycled content stream in a separation zone of the cracker facility to provide at least one recycled content hydrocarbon product stream.
A process for producing one or more recycled content product streams from a cracker facility, the process comprising:
- a) cracking a hydrocarbon feed stream in a cracking furnace of a cracker facility to thereby produce a cracked effluent stream;
- b) quenching at least a portion of the cracked effluent stream in a quench zone to thereby produce a quenched effluent stream;
- c) compressing at least a portion of the quenched effluent stream in a compression zone to thereby produce a compressed effluent stream;
- d) separating the compressed effluent stream in a separation zone to thereby produce one or more hydrocarbon products;
- and
- e) pyrolyzing waste plastic in a pyrolysis facility to thereby produce a recycled content pyrolysis gas (r-pygas), liquifying at least a portion of the r-pygas to thereby produce a recycled content liquified pyrolysis gas (r-LPyG), and introducing a stream of the recycled content liquified pyrolysis gas (r-LPyG) into one or more of the following locations (i) through (iv):
- i.) downstream of the quench zone and upstream of the compression zone;
- ii.) in the compression zone;
- iii.) downstream of the compression zone and upstream of the separation zone;
- and
- iv.) in the separation zone,
- wherein at least one of said hydrocarbon products comprises at least a portion of said r-LPyG and is a recycled content hydrocarbon product.
A process for producing one or more recycled content product streams from a cracker facility, the process comprising pyrolyzing waste plastic in a pyrolysis facility to thereby produce a recycled content pyrolysis gas (r-pygas), liquifying at least a portion of the r-pygas to thereby produce a recycled content liquified pyrolysis gas (r-LPyG), and introducing a stream of the recycle content liquified pyrolysis gas (r-LPyG) into the cracker facility at a location downstream of a furnace in the cracker facility, wherein the cracker facility produces one or more hydrocarbon products comprising at least a portion of said r-LPyG.
Dependencies are inferred from the claim text.