Cleaning coke deposits from process equipment

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United States of America Patent

PATENT NO 11571722
APP PUB NO 20220305532A1
SERIAL NO

17839049

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Importance

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Abstract

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A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body formed of a polymeric material, and a plurality of bristles partially encapsulated by the polymeric material of the flexible body.

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Patent Owner(s)

Patent OwnerAddress
CHEVRON PHLILLPS CHEMICAL COMPANY LP10001 SIX PINES DRIVE THE WOODLANDS TX 77380

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McGahee, Vincent dePaul Kemah, US 7 2

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