Hexamethylenediamine Production from Acrylonitrile
Hexamethylenediamine Production Costs Report | Issue C | Q2 2024
Report Details |
200 kta United States-based plant | Q2 2024 | 107 pages | Delivered in PDF |
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 presents the economics of Hexamethylenediamine (HMDA) production from acrylonitrile. In the process examined,acrylonitrile is electrodimerized, followed by hydrogenation, yielding adiponitrile intermediate. The adiponitrile is then hydrogenated to HMDA. The economic analysis is based on a plant constructed in the United States.
The report provides a comprehensive study of Hexamethylenediamine production and related Hexamethylenediamine production cost, covering three key aspects: a complete description of the Hexamethylenediamine production process examined; an in-depth analysis of the related Hexamethylenediamine plant capital cost (Capex); and an evaluation of the respective Hexamethylenediamine plant operating costs (Opex).
The Hexamethylenediamine 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 Hexamethylenediamine 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 Hexamethylenediamine 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 four major sections: (1) Electrodymerization; (2) Adiponitrile Separation; (3) Hydrogenation; and (4) HMDA Purification
Electrodymerization. Acrylonitrile and water are fed to an electrolyzer, in the form of a filter press, with polypropylene blocks containing lead anodes and lead-silver alloy cathodes on opposite sides. The acrylonitrile is submitted to electrodimerization in such electrolytic cells, in which the catholyte and the anolyte are separated by a cation-permeable membrane so that adiponitrile intermediate is produced. A dilute aqueous sulfuric acid, used as anolyte, is circulated through the anolyte compartment. The catholyte consists of acrylonitrile, adiponitrile, quaternary ammonium aromatic sulfonate (QAS), and water. The oxygen formed is released from the circulating anolyte, while a fraction of the liquid flowing in the cathode part, containing the adiponitrile formed, is withdrawn, and directed to separation and purification steps downstream.
Adiponitrile Separation. The cathode effluent containing the adiponitrile is passed through extractors for the removal of residual acrylonitrile and quaternary ammonium aromatic sulfonate, which are further purified and recycled. After the extraction, four distillation steps follow to remove residual acrylonitrile, light and heavy impurities. Purified adiponitrile is routed to the hydrogenation section.
Hydrogenation. Adiponitrile, fresh and recycle hydrogen are fed to a “gas-lift” reactor, where they quickly react on the surface of RaneyTM nickel catalysts yielding Hexamethylenediamine (HMDA). High catalyst concentrations are used to keep the concentration of unreacted nitriles very low. Water and caustic soda are fed to the reactor so as to make up for losses leaving in the crude HMDA.
HDMA Purification. Crude HMDA is passed through a distillation train, so as to remove water, 1,2-diaminocyclohexane (DCH) and high boilers. DCH is still sent to a column, in which residual HDMA is recovered, before it is purged.
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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 Hexamethylenediamine 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 Hexamethylenediamine 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 Hexamethylenediamine 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 Hexamethylenediamine 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
Other Hexamethylenediamine Production Cost Reports
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Details: 200 kta United States-based plant | Q2 2024 | 107 pages | Issue A From $1,199 USD
The cost analyses presented in this report target a 200 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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This report presents the economics of Hexamethylenediamine (HMDA) production from adipic acid. In the process examined, adipic acid is reacted with ammonia, forming ammonium adipate and adipamide, which are then dehydrated to adiponitrile intermediate. The adiponitrile is finally hydrogenated to HMDA. The economic analysis performed assumes a plant located in the United States.
Details: 200 kta United States-based plant | Q2 2024 | 107 pages | Issue B From $1,199 USD
The cost analyses presented in this report target a 200 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.
Hexamethylenediamine Production from Adiponitrile
This report presents the economics of Hexamethylenediamine (HMDA) production from adiponitrile. In the process examined, adiponitrile is hydrogenated to HMDA. The economic analysis is based on a plant constructed in the United States.
Details: 200 kta United States-based plant | Q2 2024 | 107 pages | Issue D From $999 USD
The cost analyses presented in this report target a 200 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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