Propylene Glycol from Propylene Oxide
Propylene Glycol Production Costs Report | Issue D | Q4 2024
| Report Details |
| 200 kta United States-based plant | Q4 2024 | 107 pages |
This report presents a cost analysis of a 200 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 report analyses the economics of Propylene Glycol production from propylene oxide in the United States, via a typical hydration process. In this analysis, propylene oxide is hydrolyzed to propylene glycol. Dipropylene glycol is produced as by-product.
The report provides a comprehensive study of Propylene Glycol production and related Propylene Glycol production cost, covering three key aspects: a complete description of the Propylene Glycol production process examined; an in-depth analysis of the related Propylene Glycol plant capital cost (Capex); and an evaluation of the respective Propylene Glycol plant operating costs (Opex).
The Propylene 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 Propylene 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 Propylene 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 3 major sections: (1) Hydration; (2) Dewatering; and (3) Glycol Separation.
Hydration. Propylene Oxide (PO) is combined with process water and water condensed from downstream. The stream is heated and fed to a tubular reactor, where all PO is converted to Monopropylene Glycol as main product and Dipropylene Glycol (DPG) as by-product. Tripropylene glycol (TPG) and heavier glycols are also formed The process is carried out without catalyst and with excess of water, in order to achieve a higher selectivity to propylene glycol.
Dewatering. Excess of water is removed from reactor outlet by means of a multi-stage evaporator and a distillation column. It is recycled to the Hydration Reactor. A small purge is taken so as to prevent impurities buildup.
Glycol Separation. In a purification column, high-purity industrial grade propylene glycol is recovered as overhead stream. The bottom stream, composed mainly of DPG, is fed to the DPG Column, which further separates DPG from minor amounts of heavy glycols.
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Production Process Information
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Production Process Information
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Production Costs Datasheet
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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 Propylene 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 Propylene 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 Propylene 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 Propylene 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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Propylene Glycol Production from Glycerol (Liquid-Phase Process)
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The cost analyses presented in this report target a 120 kta (kilo metric ton per annum per annum) United States-based plant. For those interested in cost analyses considering other plant capacities and/or locations, Intratec offers a customized analysis as an optional feature.
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