Commodity Production Costs Report
Prilled Urea Production from Ammonia (Self-Stripping Process)
Urea Operating Costs & Plant Construction Costs
This report presents the economics of Prilled Urea production from ammonia and carbon dioxide in the United States, through a process similar to Saipem's (formerly Snamprogetti) ammonia stripping process. In this process, ammonia and carbon dioxide are reacted to form ammonium carbamate, which is converted to Urea. The non-converted carbamate is stripped from the Urea solution by excess ammonia and decomposed back to ammonia and carbon dioxide, which are recycled to the Urea synthesis.
The report provides a comprehensive study of Urea production and related Urea production cost, covering three key aspects: a complete description of the Urea production process examined; an in-depth analysis of the related Urea plant capital cost (Capex); and an evaluation of the respective Urea plant operating costs (Opex).
The Urea 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 Urea 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 Urea plant operating costs analysis covers operating expenses, including variable costs like raw materials and utilities, and fixed costs such as maintenance, labor, and depreciation.
Key reference(s): ?
The process under analysis comprises three major sections: (1) Reaction; (2) Carbamate Decomposition; and (3) Urea Concentration.
Reaction. Initially, carbon dioxide and a liquid mixture of ammonia and carbamate, recovered downstream, are fed to the urea reactor, part of the high pressure synthesis loop. Here the ammonia and the carbon dioxide react yielding ammonia carbamate and urea.
Carbamate Decomposition. The reactor effluent, containing carbamate, is fed to a falling-film stripper where excess NH3 strips out the carbamate from the effluent. The off-gas from the stripper is absorbed in a liquid carbamate stream and fed to a kettle-type boiler to be condensed and recycled to the reactor. The heat exchanged is used to produce steam. The urea solution is directed to two successive decomposers for the removal of residual carbamate and carbon dioxide. After decomposition of carbamate and evaporation of ammonia, a urea solution substantially free of carbamate is obtained. The off-gas from the decomposers is rectified in a medium pressure absorber, from which gaseous ammonia and a liquid ammonium carbamate stream are obtained. The ammonia is condensed, mixed with fresh ammonia and routed to urea synthesis; while the ammonium carbamate is directed to the condenser.
Urea Concentration. At this point the urea-water mixture is concentrated in a two-stage evaporator, forming a urea melt. The vapor obtained is condensed and directed to a condensate treatment. The treatment consists in stripping/hydrolyzer steps; the condensate obtained is used as process water and boiler feed water, while off-gas containing ammonia and carbon dioxide is recycled to urea synthesis. The urea melt is sprayed at the top of a prilling tower, forming spheroidal urea particles – prills –which are packed in bags and stored.
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Professional report based on Q3 2024 economic data, ensuring timely evaluations.
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Content Highlights
Plant Capital Cost Summary
Summary outlining the capital cost required for building the Urea 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 Urea 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 Urea 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 Urea 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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Other Urea Production Cost Reports
Prilled Urea Production from Ammonia (CO2 Stripping Process)
This report examines the costs related to Prilled Urea production from ammonia and carbon dioxide in the USA. The process examined in this report is similar to Stamicarbon's carbon dioxide stripping process. In this process, ammonia and carbon dioxide are converted to Urea via ammonium carbamate intermediate. The non-converted carbamate is stripped from the Urea solution by carbon dioxide and decomposed back to ammonia and carbon dioxide, which are recycled to the Urea synthesis.
Details: 1300 kta United States-based plant | Q3 2024 | 107 pages | Issue B | From $799 USD
Granulated Urea Production from Ammonia (CO2 Stripping Process)
This report provides a techno-economic analysis of Granulated Urea production from ammonia and carbon dioxide in the United States through Stamicarbon’s carbon dioxide stripping technology. In this process, ammonia and carbon dioxide are converted to Urea via ammonium carbamate intermediate. The non-converted carbamate is stripped from the Urea solution by carbon dioxide and decomposed back to ammonia and carbon dioxide, which are recycled to the Urea synthesis.
Details: 1300 kta United States-based plant | Q3 2024 | 107 pages | Issue D | From $799 USD
Prilled Urea Production from Natural Gas
This report examines the economics of Prilled Urea manufacturing from natural gas in an industrial complex located in the United States. Initially, natural gas is converted to syngas by steam and autothermal reforming. The syngas is mixed with nitrogen to produce ammonia. The ammonia formed is reacted with carbon dioxide, to form urea via ammonium carbamate.
Details: 1300 kta United States-based plant | Q3 2024 | 107 pages | Issue E | From $1,199 USD
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Other Related Production Cost Reports
Ammonia Production from Natural Gas (Combined Reforming)
This report presents the economics of Ammonia production from natural gas in the United States using a process similar to KBR Purifier process. In the process examined, syngas is initially produced from natural gas via a combined reforming. The syngas is purified through several steps into nitrogen and hydrogen which are synthesized to ammonia.
Details: 800 kta United States-based plant | Q3 2024 | 107 pages | Issue B | From $1,199 USD
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