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Name
ExxonMobil Tubular LDPE Process
Owner
/ ExxonMobil Main Holding
Brand
ExxonMobil Tubular LDPE Process
Process
Polyethylene processes
Type
High-Pressure Polymerization of Ethylene
Available
Insight Articles
#TE247

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
  Map
Entity Site (Country) Asset (Plant)
EMHCC EMHCC Huizhou LDPE Plant
IPC Jubail IPC Jubail LDPE Plant
KEMYA Kemya Jubail LDPE Plant
LCT (M) Sdn. Bhd. LTC Tanjung Langsat LDPE Plant
LIP JV LIP Lake Charles LDPE Plant
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Transaction Name Date
Modified by UserPic   Kokel, Nicolas 11/23/2025 6:32 AM
Added by UserPic   Kokel, Nicolas 6/6/2024 2:39 PM