Skip to Main Content
  • Linde Worldwide
  • The Linde Group
  • About Linde
  • Engineering
    Papua New Guinea

  • Welcome
  • About Linde Engineering
      • Management
        • Dr Christian Bruch
        • Juergen Nowicki
        • John van der Velden
        • Tilman Weide
      • Locations
        • Linde Engineering Dresden
        • Linde Engineering Schalchen Plant
        • Selas-Linde GmbH
        • Linde Kryotechnik AG
        • Cryo AB
        • Cryostar SAS
        • Linde CryoPlants Ltd.
        • Moscow Representative Office
        • Linde Engineering Rus, OOO
        • Linde Engineering North America Inc. - Tulsa, Oklahoma
        • Selas Linde North America
        • Hydro-Chem
        • Linde Engineering North America Inc. - Houston Office
        • Linde Engineering India Pvt. Ltd.
        • Linde Engineering (Hangzhou) Co., Ltd.
        • Linde Engineering (Dalian) Co., Ltd.
        • Linde Arabian Contracting Co. Ltd.
        • Linde Engineering Middle East LLC
        • Linde Engineering Korea Ltd.
        • Linde Engineering South Africa (Pty) Ltd.
      • Quality, Health, Safety & Environment (QHSE)
        • QHSE at construction sites
        • Certificates and awards
      • Collaborate.Innovate.Deliver.
        • Collaborate.
        • Innovate.
        • Deliver.
  • Process Plants
      • Air separation plants
        • Customised air separation plants
        • Modular air separation plants
        • Containerised air separation plants
        • References
      • LNG and natural gas processing plants
        • Liquefied natural gas (LNG)
        • Natural gas liquids (NGL)
        • Nitrogen rejection
        • Helium recovery and liquefaction
        • References
      • Hydrogen and synthesis gas plants
        • Gas products
        • Gas generation
        • Gas processing plants
      • Petrochemical plants
        • Steamcracking technology
        • Acetylene recovery technology
        • Linear alpha olefins (LAOs)
        • Polyolefin plants
        • Third-party technologies
        • Gemini - Oxidative coupling of methane (OCM)
        • References
      • Adsorption and membrane plants
        • Membrane plants
        • Hydrogen recovery and purification
        • Oxygen generator plants
        • Nitrogen generation
        • Carbon dioxide removal and purification
      • Cryogenic plants
        • Helium liquefiers
        • Helium refrigeration plants
        • Hydrogen liquefiers
        • Helium recovery systems
        • Equipment and accessories
      • CO₂ plants
        • References
        • CO₂ purification and liquefaction
        • Carbon capture
      • Furnaces, fired heaters and incinerators
        • Steam reformer furnaces
        • Cracking furnaces for ethylene production
        • Cryogenic vaporiser
        • Fired heaters and waste heat recovery units
        • DRI heaters & special crackers
        • Incinerators and thermal oxidisers
  • Plant Components
      • Plate-fin heat exchangers (PFHEs)
        • Plate-fin heat exchangers – Design variants
      • Packaged units / coldboxes
      • Cryogenic columns
      • Coil-wound heat exchangers (CWHEs)
      • Cryogenic tanks
        • Customer Information Centre
      • Air-heated vaporisers
      • Water bath vaporisers
      • Spiral-welded aluminium pipes
      • Helium storage tanks
      • UN portable tank (HELICS™)
      • Operational services
  • Services
      • Engineering
        • Modularisation
      • Procurement
        • Supplier portal
      • Construction
      • Export and project financing
  • Innovations
      • Virtual reality redefines plant engineering
      • Innovative dry reforming process
      • FlexASU®
  • LINDE PLANTSERV™
      • Know-how and experience
      • Reliability
      • Efficiency and performance
  • News & Media
      • Press Services
        • Interview Digitalisation
      • Press Releases
      • Linde @ Social Media
        • Facebook
        • Twitter
        • YouTube
        • Google+
        • LinkedIn
        • Miscellaneous
        • Social Media Guidelines
      • Events
        • Nitrogen & Syngas 2019
        • LNG 2019
        • 11th Hydrogen and Syngas Symposium 2019
      • Publications
      • Linde Apps
        • C-Pot
        • Gas Converter
        • Gas distribution partner-search
        • Fascinating Gases
        • Virtual World
        • Virtual Cryo
        • BOC re-order
        • Afrox Shop
      • Video Library
      • Media Contacts
  • Careers
      • Work @ Linde
      • People @ Linde
        • License to Fill
        • Matthias & the Mechanics
        • The Pathfinder
        • Giving Back
      • Roles @ Linde
        • Engineers & Technicians
        • Sales & Customer Service
        • Healthcare & Homecare
        • Corporate Functional Staff & Admins
        • Operational Staff, Fillers & Drivers
      • Jobs @ Linde
        • Locations worldwide
      • 000 Students & Graduates @ Linde
        • School Students
        • University Students
        • University Graduates
      • Apply @ Linde
      • Job Blog
        • A Dream Job
        • A New Home
        • Insider Tips
        • Shell Eco-marathon
        • Shell Eco-marathon London
        • Shell Eco-marathon: Driving change
        • A whole new weld
        • Mission: Impossible
        • Into the future: at the push of a button
        • Get with the programme
        • Shell Eco-marathon: Learning from the young
        • Many cultures, one company: Linde Global Services
        • Spark of genius
        • Commissioning engineers
  • Contact
  •  
  • Linde Worldwide
  • The Linde Group
  • About Linde
  • Process Plants
  • Air separation plants
  • LNG and natural gas processing plants
  • Hydrogen and synthesis gas plants
  • Petrochemical plants
    • Steamcracking technology
      • Cracking furnace technology
      • Ethylene separation technology
    • Acetylene recovery technology
    • Linear alpha olefins (LAOs)
    • Polyolefin plants
    • Third-party technologies
    • Gemini - Oxidative coupling of methane (OCM)
    • References
  • Adsorption and membrane plants
  • Cryogenic plants
  • CO₂ plants
  • Furnaces, fired heaters and incinerators
  • Process Plants
  • Petrochemical plants
  • Steamcracking technology
  • Ethylene separation technology
Ruwais 2 / Saudi Arabia / Borouge

Ethylene separation technology Linde Engineering is a leading technology contractor for steam crackers the world over.

The separation train of a cracker starts with the hot section where the cracked gas is quenched and cooled down, and heavy fractions are condensed and separated. Thereafter, the process steam is condensed and removed and the cracked gas is dried before it enters the compression section. The compression is typically done in four to five stages up to a pressure of approximately 36 bar.

The compressed cracked gas is separated into the C2 minus fraction, which is routed to the cold section for further separation, and the C3+ fraction. C2 minus and C3+ fractions are separated in sequences into the specified products. Thereby, unwanted impurities like acetylene and methylacetylene / propadiene are hydrogenated to ethylene and propylene. Pyrolysis gasoline requires also hydrogenation in order to match market specifications.

Some fractions (e.g. ethane, propane and butane / butenes) are recycled to the furnaces in order to improve overall yields.

The separation train of an olefin pant is a very complex process sequence that is optimised with respect to investment and energy consumption. The exact configuration is depending on feedstock and products in a particular project.

Linde Engineering is most successful among the few technology contractors for steamcrackers worldwide.

 

Any questions?
  • Contact

    Contact us
    • Terms of Use
    • Legal Notice
    • Data Protection
  • © The Linde Group 2018

To enhance your user experience and to deliver our online services, this website uses cookies for reasons of functionality, comfort and statistics. By continuing to browse the site, you are agreeing to our use of cookies.
You can find out more on our data protection information.
You must check the "I accept cookies from Linde Sites" box to accept.
More