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US 2026/0250218 A1Published application
Recovery of styrene monomer from polystyrene
OwnerDouglas Stuart HUBBELL, Slawomir A. OLESKYinventors
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OwnerDouglas Stuart HUBBELL, Slawomir A. OLESKYinventors
Estimating the term…
In a process for recovering styrene monomer from polystyrene, a feed comprising benzene, toluene, ethylbenzene, styrene monomer and C9+ aromatics produced by depolymerizing polystyrene is supplied to a first fractionation column and divided into a first bottoms fraction containing part of the C9+ aromatics in the feed and a first overhead fraction composed of the remainder of the feed. The first overhead fraction is supplied to a second fractionation column and divided into a second overhead fraction rich in benzene, toluene, and ethylbenzene compared to the first overhead fraction and a second bottoms fraction rich in styrene monomer and C9+ aromatics compared to the first overhead fraction. The second bottoms fraction is supplied to a third fractionation column and divided into a third overhead fraction rich in styrene monomer compared to the second bottoms fraction and a third bottoms fraction rich in C9+ aromatics compared to the second bottoms fraction.
A process for the recovery of styrene monomer from the reaction products of the depolymerization of polystyrene, the process comprising:
An apparatus for the recovery of styrene monomer from the reaction products of the depolymerization of polystyrene, the apparatus comprising:
Dependencies are inferred from the claim text.