Where is Atol used?

Renewables & AlternativesRenewables & Alternatives

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  • Oil Refining
  • Petrochemicals
  • Gases
  • Alternative Fuels
  • Water


Atol® - An innovative technology for bio-ethylene production through bio-ethanol dehydration


Profitable polymer grade bio-ethylene

Atol® is a technology for the most profitable production of polymer grade bio-ethylene by dehydration of 1st and/or 2nd generation renewable ethanol.

The bio-ethylene produced can be integrated in partial and/or total replacement of fossil hydrocarbon based ethylene in various downstream polymerization installations without requiring modifications.
Atol® bio-ethylene can therefore be fed into existing or new units of, for instance, polyethylene (PE), ethylene oxide/ethylene glycol (polyethylene-terephthalate (PET), polyolefins, alpha-olefins production for linear alkylbenzene (LABs) and polyalphaolefins (PAOs), benzene alkylation for polystyrene (PS), acrylonitrile-butadienestyrene (ABS), polyvinylchloride (PVC), etc.

Energy saving has been the key driver for Atol®’s process development with the objective to minimize operating costs and carbon foot-print. As a result of its innovative and patented thermal integration, Atol® utility consumption is minimized.


Atol® performance

  • 99+% ethanol per pass conversion
  • Close to stoechiometrical ethylene yield
  • Bio-ethylene purity: up to polymer grade 99.9+%


3D view of Atol® process

3D view of Atol® process


Process Description

Simplified Atol® process flow diagram


A new-generation Catalyst

Atol® ethanol dehydration catalyst (ATO 201) is a new type of catalyst providing high performances in terms of conversion rates, selectivity and stability. Among the catalyst’s main advantages one can name:

  • High activity
  • High selectivity
  • High hydrothermal stability and tolerance to poisons
  • High regenerability

Documentation Center

Atol - Commercial Bulletin cadenas

Associated Offer

Catalysts & Adsorbents


Axens Horizon
Axens Horizon
Operations Support

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