Ethylene Oxide and Ethylene Glycol Production Process
Ethylene Oxide and Ethylene Glycol Production Process
Ethylene Oxide (EO) and Ethylene Glycol (EG) production is a core operation in modern petrochemical complexes, supplying essential intermediates for polyester, antifreeze, resins, solvents, and industrial chemicals.
Ethylene Oxide (EO) and Ethylene Glycol (EG) production is a core operation in modern petrochemical complexes, supplying essential intermediates for polyester, antifreeze, resins, solvents, and industrial chemicals.
The primary objective of EO/EG production units is to efficiently convert ethylene into high-purity ethylene oxide and downstream ethylene glycols while ensuring safe operation, high on-stream availability, and competitive production economics.
EO and EG plants are typically designed as integrated units, allowing direct conversion of ethylene oxide into Mono-Ethylene Glycol (MEG), Di-Ethylene Glycol (DEG), and Tri-Ethylene Glycol (TEG).
Commercial plants focus on maximizing selectivity, minimizing by-product formation, and achieving long catalyst life cycles.
Process
Objective
Convert ethylene into high-purity ethylene oxide and downstream glycols with maximum selectivity and long catalyst life.
Main
Products
Ethylene Oxide (EO), Mono-Ethylene Glycol (MEG), Di-Ethylene Glycol (DEG), and Tri-Ethylene Glycol (TEG).
Commercial
Applications
Polyester, PET, antifreeze, resins, solvents, surfactants, and industrial chemicals.
Overview
Step 1
Catalytic oxidation of ethylene to produce ethylene oxide.
Step 2
Controlled hydration of EO to produce MEG, DEG, and TEG.
Step 3
Separation and purification to commercial-grade products.
Production
Ethylene oxide is produced by the catalytic oxidation of ethylene using oxygen or air in the presence of a silver-based catalyst. The reaction is carried out in a fixed-bed tubular reactor designed for high heat removal efficiency and stable long-term operation.
Commercial Features:
EO production units are designed to meet strict safety standards due to the reactive nature of ethylene oxide.
Production
Ethylene glycol is produced by the controlled hydration of ethylene oxide, followed by separation and purification.
Key Outputs:
Commercial EG units are optimized to maximize MEG yield while allowing flexible DEG and TEG production based on market demand.
and Process Providers
EO/EG production is based on well-established licensed technologies supplied by globally recognized licensors.
These licensors provide complete process packages including reactor design, catalyst systems, heat integration, and operational guidelines.
EO Production Selectivity
Silver-based catalysts supported on alumina.
High selectivity and stable long-term operation.
Licensor-approved sourcing and logistics.
Catalysts are critical for achieving high selectivity and stable EO production.
OGSCM Group supports EO/EG producers by sourcing and supplying licensor-approved catalysts with full technical documentation and logistics support.
Process Chemicals
High-purity ethylene (C₂H₄).
Oxygen, CO₂, demineralized water, and caustic soda.
Bulk, ISO tanks, IBC containers, and steel drums.
EO/EG production requires consistent supply of high-purity feedstock and auxiliary chemicals.
OGSCM Group supplies EO/EG process chemicals in approved industrial packaging formats with full safety and technical documentation.