Chemicals, Petrochemicals, & Polymers

IHI E&C has a wealth of EPC experience in the chemical, petrochemical and polymer industries which reaches back to our legacy companies,  Davy Jones, John Brown, Crawford & Russell and Aker Kvaerner.  Many of our key technical experts  worked on an extensive range of chemical plants through these predecessor companies. These subject matter experts remain with IHI E&C today, where they continue to draw on their experience to lead our projects to success.  

Our teams of engineers and designers provide solutions to meet the demand for efficiency in the petrochemical industry. From design to execution, our service plan features commitment to cost efficiency and safety. Our clients also benefit from our global experience, leveraged for the local implementation of projects.

We offer a high degree of flexibility. Our IHI E&C stage gate execution (IHI Advance) helps successfully guide and predict project outcomes. Alternatively, we are fully capable of following the stage gate execution approaches of our clients.

Our experience makes us particularly well-suited to assist our clients with petrochemical projects which benefit from the cost-advantaged natural gas feedstock currently being produced in large quantities in the U.S. We have strong experience in ethylene / polyethylene, propylene / polypropylene and their numerous derivative products.


We have engineered and built many polymer plants producing a variety of products, including:

  • Polyethylene (PE)

  • Polypropylene (PP)

  • Polybutylene

  • Synthetic Rubber

  • Polyethylene Terephthalate (PET)

  • Acrylonitrile Butadiene Styrene (ABS)

  • Polycarbonate (PC)

  • Polystyrene (PS)

  • Polyurethane (PU)

  • Polyvinyl Chloride (PVC)

  • Polyvinyl Alcohol (PVA)

  • Polytetrafluoroethylene (PTFE)

  • Ethylene Vinyl Alcohol (EVOH)

  • Nylon

Olefin Derivatives

Our experience with olefin derivatives extends from the building block chemicals of ethylene and propylene throughout their entire product chain and the conversion of butane into chemical intermediates.

This includes:

  • Ethylene derivatives such as polyethylene (PE), alpha olefins, styrene, ethylene oxide (EO) / ethylene glycol (EG), vinyl acetate monomer (VAM), vinyl chloride monomer (VCM) and polyvinyl chloride (PVC)
  • Propylene derivatives such as polypropylene (PP), oxo-alcohols, acrylonitrile (AN) and propylene oxide (PO)
  • Butylene derivatives such as polyisobutylene (PIB) and oxygenates (MTBE, ETBE and TAME)