Using spent caustic solution from pygas treatment to neutralize halogens from liquified waste plastic

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United States of America

PATENT NO 12195674
APP PUB NO 20230089058A1
SERIAL NO

17932686

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Abstract

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Processes and facilities for producing recycled chemical products from waste plastic are described herein. The processes include treating process streams, such as a pyrolysis gas stream and/or at least a portion of a cracker furnace effluent stream, in a caustic scrubber process to remove certain components, such as carbon dioxide. The spent caustic solution from the caustic scrubber process is then recycled and reused in other caustic processes within the facility, which can include a halogen neutralization process from removing halogens from a liquification process off-gas.

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Patent Owner(s)

Patent OwnerAddress
EASTMAN CHEMICAL COMPANY200 SOUTH WILCOX DRIVE KINGSPORT TN 37660

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bitting, Daryl Longview, US 94 364
Polasek, Michael Gary Longview, US 62 345
Slivensky, David Eugene Tatum, US 91 358
Wu, Xianchun Longview, US 100 462

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