Methyl Mercaptan from Natural Gas, Methanol and Sulfur (Carbon Disulfide Co-Product)
Methyl Mercaptan Production Costs Report | Issue A | Q4 2024
| Report Details |
| 50 kta United States-based plant | Q4 2024 | 107 pages |
This report presents a cost analysis of a 50 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 study presents the economics of Methyl Mercaptan production from natural gas, methanol and sulfur in the USA. In this process, sulfur and natural gas are reacted to produce hydrogen sulfide and carbon disulfide. Subsequently, hydrogen sulfide and methanol are reacted to produce Methyl Mercaptan.
The report provides a comprehensive study of Methyl Mercaptan production and related Methyl Mercaptan production cost, covering three key aspects: a complete description of the Methyl Mercaptan production process examined; an in-depth analysis of the related Methyl Mercaptan plant capital cost (Capex); and an evaluation of the respective Methyl Mercaptan plant operating costs (Opex).
The Methyl Mercaptan 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 Methyl Mercaptan 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 Methyl Mercaptan 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) H2S Synthesis; (2) CS2 Separation; (3) Methyl Mercaptan Synthesis; and (4) Methyl Mercaptan Separation.
H2S Synthesis. The process begins with pre-heating natural gas and sulfur in a furnace. The heated stream is then fed to packed bed tubular reactors where methane reacts with sulfur to produce carbon disulfide (CS2) and hydrogen sulfide (H2S). The product stream is then cooled in a waste heat boiler to recover heat as steam, and the cooled gases proceed to the CS2 Separation section.
CS2 Separation. Excess sulfur is removed from the product stream using a scrubbing system with light oil as the scrubbing fluid. The sulfur is separated from the oil and recycled to the furnace. The scrubbed stream, containing CS2 and H2S, then proceeds to an absorption step where CS2 is absorbed in light oil and separated from H2S. The absorbed CS2 is further purified through a series of distillation steps and a caustic wash, resulting in pure CS2 as a by-product.
Methyl Mercaptan Synthesis. H2S is compressed along with methanol in a two-stage compressor. The vaporized methanol is then mixed with the compressed H2S to achieve the desired molar ratio. The mixture is preheated and fed to a packed bed tubular reactor where it reacts to form methyl mercaptan (MSH) and water. The reactor effluent is cooled and sent to the purification stages.
Methyl Mercaptan Separation. The reactor effluent is first condensed, creating an organic and an aqueous condensate; the uncondensed stream being washed with methanol, which is then mixed with the aqueous condensate. Unreacted H2S is recycled to the compressor. Both condensates undergo distillation to recover Methyl Mercaptan, methanol, and remove impurities. Methyl mercaptan is further distilled, separating it from dimethyl sulfide and other components. The purified MSH is then stored as the final product.
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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 Methyl Mercaptan 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 Methyl Mercaptan 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 Methyl Mercaptan 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 Methyl Mercaptan 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 Methyl Mercaptan Production Cost Reports
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This study presents the economics of Methyl Mercaptan production from hydrogen sulfide and methanol in the USA. In this process, hydrogen sulfide and methanol are reacted to produce Methyl Mercaptan.
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The cost analyses presented in this report target a 50 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.
Methyl Mercaptan from Natural Gas, Sulfur and Methanol (H2 Intermediate)
This study presents the economics of Methyl Mercaptan production from natural gas, sulfur, and methanol in the USA. In this process, hydrogen is produced from natural gas then reacted with sulfur to obtain hydrogen sulfide. Subsequently, hydrogen sulfide and methanol are reacted to produce Methyl Mercaptan.
Details: 50 kta United States-based plant | Q4 2024 | 107 pages | Issue C From $1,499 USD
The cost analyses presented in this report target a 50 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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