Commodity Production Costs Report
Diethyl Sulfate Production
Diethyl Sulfate Plant Capital & Operating Cost Analysis | United States | Q2 2025
This report presents the economics of Diethyl Sulfate production from rectified spirit and chlorosulfonic acid. The process examined is a typical process. In this process, absolute alcohol and chlorosulfonic acid are charged to a reactor at sub-zero temperatures, producing ethylsulfuric acid, which is then distilled under vacuum with anhydrous sodium sulfate, yielding Diethyl Sulfate.
The report provides a comprehensive study of Diethyl Sulfate production and related Diethyl Sulfate production cost, covering three key aspects: a complete description of the Diethyl Sulfate production process examined; an in-depth analysis of the related Diethyl Sulfate plant capital cost (Capex); and an evaluation of the respective Diethyl Sulfate plant operating costs (Opex).
The Diethyl Sulfate 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 Diethyl Sulfate 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 Diethyl Sulfate plant operating costs analysis covers operating expenses, including variable costs like raw materials and utilities, and fixed costs such as maintenance, labor, and depreciation.
Product
Diethyl Sulfate. Diethyl Sulfate is one of the most commercially important dialkyl sulfates and appears as a highly toxic colorless, corrosive, oily liquid that darkens with age and has a faint peppermint odor. It is a possible mutagen and is anticipated to be a human carcinogen based on evidence of carcinogenicity in experimental animals, and may be associated with developing laryngeal cancer. Diethyl Sulfate can be manufactured by the addition of sulfur trioxide to dimethyl ether, by the addition of sulfuric acid to diethyl ether or ethanol, and from ethanol and sulfuryl chloride. This chemical is used as an alkylating agent, as an accelerator in the sulfation of ethylene and in some sulfonation reactions, and in the preparation of ethyl derivatives of amines, phenols, and thiols.
Raw Materials
Ethanol. Ethanol, also known as ethyl alcohol, may work as a solvent, a germicide, a fuel, and as a chemical intermediate for other organic chemicals. Currently, ethanol is mostly produced via fermentation of sugars, which can be obtained from crops, such as sugarcane and starch. However by relying on the sugar and starch content of food crops, ethanol production competes with food production. Therefore, recent research focus on the use of low-value raw materials, often deemed “waste”, to produce ethanol. That low-value feed can be biomass of lignocellulosic material found in wood, sugarcane bagasse and grain crop stubbles, or can be carbon monoxide found in waste gas streams from a range of industries. Lignocellulosic biomass could represent a new fermentable raw material if hydrolysis of this material is performed. Technological advances in this reaction still need to be achieved in order to make it economically feasible and render this usage of the agricultural residues competitive with respect to others, such as heat generation by burn.
Chlorosulfonic Acid. Chlorosulfonic acid, also known as chlorosulfuric acid and sulfurochloridic acid, is the sulfonic acid of chlorine. On a commercial scale, its production is based on reacting hydrogen chloride with a solution of sulfur trioxide in sulfuric acid. This compound is mainly used in the sulfation of alcohols, to prepare sodium alkyl sulfates. It is also employed in the production of saccharin.
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Content Highlights
Plant Capital Cost Summary
Summary outlining the capital cost required for building the Diethyl Sulfate 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 Diethyl Sulfate 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 Diethyl Sulfate 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 Diethyl Sulfate 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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