Ethylene Glycol Production from Ethylene Oxide (Direct Hydrolysis)
Ethylene Glycol Production Costs Report | Issue G | Q3 2024
| Report Details |
| 690 kta United States-based plant | Q3 2024 | 107 pages |
This report presents a cost analysis of a 690 kta (kilo metric ton per annum) United States-based plant. You can add a customized cost analysis, assuming another location (country), when ordering a premium edition of this report.
Report Abstract
This assessment approaches the production of Monoethylene Glycol (MEG) from ethylene oxide in the United States. In the process under analysis, ethylene oxide is directly hydrolyzed to MEG. Diethylene glycol (DEG) and triethylene glycol (TEG) are also generated as by-products.
The report provides a comprehensive study of Ethylene Glycol production and related Ethylene Glycol production cost, covering three key aspects: a complete description of the Ethylene Glycol production process examined; an in-depth analysis of the related Ethylene Glycol plant capital cost (Capex); and an evaluation of the respective Ethylene Glycol plant operating costs (Opex).
The Ethylene Glycol production process description includes a block flow diagram (BFD), an overview of the industrial site installations, detailing both the process unit and the necessary infrastructure, process consumption figures and comprehensive process flow diagrams (PFD). The Ethylene Glycol plant capital cost analysis breaks down the Capex by plant cost (i.e., ISBL, OSBL and Contingency); owner's cost; working capital; and costs incurred during industrial plant commissioning and start-up. The Ethylene Glycol plant operating costs analysis covers operating expenses, including variable costs like raw materials and utilities, and fixed costs such as maintenance, labor, and depreciation.
Process Schematic
The process under analysis comprises two major sections: (1) Ethylene glycol synthesis; and (2) Ethylene glycol purification.
Ethylene glycol synthesis. The ethylene oxide is combined with water, heated and fed to a tubular reactor, where the ethylene oxide is thermally hydrolyzed to Ethylene Glycol without a catalyst. As ethylene oxide reacts with ethylene glycols more quickly than with water, diethylene glycol (DEG), triethylene glycol (TEG) and heavy glycols are also formed. The yields of such glycols, however, are minimized by conducting the reaction in excess of water, what ultimately improves selectivity towards MEG.
Ethylene glycol purification. The excess of water used in the EG reaction is removed from the reactor outlet by means of multi-stage evaporator. Then, the MEG is purified in successive distillation steps, while residual water is recycled to the reactor as process condensate and DEG and TEG are recovered as by-products.
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Production Process Information
Process Consumptions
Labor Requirements
Plant Capital Cost Summary
Operating Cost Summary
Production Costs Datasheet
Plant Capital Cost Details
Operating Cost Details
Plant Cost Breakdowns
Plant Capacity Assessment
Process Flow Diagrams
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Content Highlights
Plant Capital Cost Summary
Summary outlining the capital cost required for building the Ethylene Glycol production plant examined
Plant Capital Cost Details
Detailing of fixed capital (ISBL, OSBL & Owner’s Cost), working capital and additional capital requirements
Plant Cost Breakdowns
Breakdown of Ethylene Glycol process unit (ISBL) costs and infrastructure (OSBL) costs; plant cost breakdown per discipline
Operating Costs Summary
Summary presenting the operating variable costs and the total operating cost of the Ethylene Glycol production plant studied
Operating Cost Details
Detailing of utilities costs, operating fixed costs and depreciation
Plant Capacity Assessment
Comparative analysis of capital investment and operating costs for different Ethylene Glycol plant capacities
Production Process Information
Block Flow Diagram, descriptions of process unit (ISBL) and site infrastructure (OSBL)
Process Consumptions
Raw materials and utilities consumption figures, by-products credits, labor requirements
Process Diagrams
Process flow diagrams (PFD), equipment list and industrial site configuration
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This report presents a detailed cost analysis of Monoethylene Glycol production from ethylene oxide. The process examined is similar to Shell OMEGA, in which ethylene oxide is hydrolyzed to MEG via ethylene carbonate, generating no by-products. The economic analysis assumes a plant located in the United States.
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