Commodity Production Costs Report
Benzene from Toluene (Hydrodealkylation)
Benzene Operating Costs & Plant Construction Costs
This study presents the economic analysis for the construction of an industrial plant for Benzene production from toluene in the United States. This study reviews a toluene hydrodealkylation (THDA) technology similar to Houdry's Detol. In this process, toluene is converted over a fixed-bed catalyst into Benzene.
The report provides a comprehensive study of Benzene production and related Benzene production cost, covering three key aspects: a complete description of the Benzene production process examined; an in-depth analysis of the related Benzene plant capital cost (Capex); and an evaluation of the respective Benzene plant operating costs (Opex).
The Benzene 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 Benzene 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 Benzene 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) Dealkylation; (2) Product Treatment; and (3) Hydrogen Recovery.
Dealkylation. Fresh toluene feed, recovered toluene from Benzene Column downstream and hydrogen recovered downstream, are mixed and fed to the Charge Heater, a fired heater where the mixture temperature is raised to the reaction temperature. The heated mixture is sent to two fixed bed reactors operating in series, where nonaromatic components are hydrocracked into light paraffins, and aromatics are dealkylated to benzene.
Product Treatment. In the stabilization area, the reactors effluent is partially condensed - the gaseous hydrogen-rich stream is routed to the Hydrogen Recovery section, while the liquid stream containing benzene is further treated for removal of remaining gas and low-boiling hydrocarbons. An aromatic hydrocarbons-rich stream is sent to the Benzene column. Benzene product is obtained from the top of the column, while toluene and heavier components withdrawn from the bottom are recycled to charged heater.
Hydrogen Recovery. The gaseous stream from the flash drum is mixed with make-up hydrogen and then fed to the bottom of an absorber column, to remove residual hydrocarbons and avoid build-up of impurities in the process. The washed hydrogen-rich gas is then compressed and recycled to the Charged Heater.
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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 Benzene 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 Benzene 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 Benzene 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 Benzene 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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Details: 250 kta United States-based plant | Q3 2024 | 107 pages | Issue G | From $799 USD
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