Systems for Cooling Recycled Off-Gas in Low-Density Polyethylene Production

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20230077287A1
SERIAL NO

17759452

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Improved heat exchanger systems and processes for cooling recycled off-gas in high pressure low-density polyethylene production. A system for exchanging heat between a first material and a second material can include a shell for containing the first material therein, a plurality of tubes disposed within the shell for containing the second material therein, a tube sheet disposed at an end of the shell for restricting flow of the second material to the shell, and at least one collector conduit disposed exterior to the shell for receiving at least one end of the plurality of tubes, wherein at least one of the plurality of tubes extend through the tube sheet to the collector conduit. A cleaning tool can be disposed within the collector conduit for cleaning the tubes. A process for cooling a gas stream can include introducing the gas stream to the heat exchanger system provided herein.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL CHEMICAL PATENTS INCBAYTOWN TX 77520-2101

International Classification(s)

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  • 2021 Application Filing Year
  • C08F Class
  • 1921 Applications Filed
  • 622 Patents Issued To-Date
  • 32.38 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DEWITTE, Cindy Puurs-Sint-Amands, BE 6 7

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  • C08F Class
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2850303201 - 1011 - 20020040060080010001200140016001800200022002400260028003000

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