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Name
ExxonMobil Autoclave LDPE Process
Owner
/ ExxonMobil Main Holding
Brand
ExxonMobil Autoclave LDPE Process
Process
Polyethylene processes
Type
High-Pressure Polymerization of Ethylene
Available

Description

The ExxonMobil autoclave technology also exists with a tubular tail connected to the primary autoclave reactor. Therefore, a tubular tail unit is available in the list of units when such a tubular tail technology is designed.

Characteristics of the ExxonMobil high-pressure polymerisation of ethylene processes are:

  • The tubular reactors operate at pressure up to 3,000 bar, whereas autoclave reactor operates below 2,000 bar.
  • MI range: 0.2 – 150
  • Density range: 0.912 – 0.935
  • Reactor turn down ratio: 50%
  • Short residence times
  • Reactor conversion up to 40%
  • Ability to switch from homo-polymers to copolymers
  • Product from the tubular process is typically higher in molecular weight and has more short chain branches than LDPE from the autoclave process .
  • Produce LDPE homo-polymers and ethylene vinyl acetate (EVA) copolymers

Source: Echem Enppi, Apr 2013, Polyethylene Production Technologies, via the Internet Archive.

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Technology Picture
ExxonMobil Tubular Reactor Simplified PFD https://web.archive.org/web/20191112232009/http://apet-eg.com/PDF/ECHEM_ENPPI.pdf
Technology Picture
ExxonMobil Tubular Reactor Simplified PFD https://web.archive.org/web/20191112232009/http://apet-eg.com/PDF/ECHEM_ENPPI.pdf
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Entity Site (Country) Asset (Plant)
TPE TPE Rayong LDPE Plant
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Transaction Name Date
Modified by UserPic   Kokel, Nicolas 6/25/2025 7:28 PM
Added by UserPic   Kokel, Nicolas 6/6/2024 3:13 PM