Commodity Production Costs Report

Cyclohexane from Benzene and Hydrogen (Liquid-Phase Process)

Cyclohexane Operating Costs & Plant Construction Costs

200 kta United States-based plant | 107 Pages | Issue A | Q3 2024
Starting at $799 USD | See Report Editions Prices

This feasibility study shows the economics of Cyclohexane production from benzene using a liquid phase hydrogenation process in the presence of a nickel-based catalyst. The economic analysis presented is based on a plant constructed in the United States.

The report provides a comprehensive study of Cyclohexane production and related Cyclohexane production cost, covering three key aspects: a complete description of the Cyclohexane production process examined; an in-depth analysis of the related Cyclohexane plant capital cost (Capex); and an evaluation of the respective Cyclohexane plant operating costs (Opex).

The Cyclohexane 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 Cyclohexane 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 Cyclohexane 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): ?

Cyclohexane Production Cost Report Process Schematic

The process under analysis comprises three major sections: (1) Reaction; (2) Hydrogen Recovery; and (3) Purification.

Reaction. Initially, benzene is fed to the primary reactor alongside fresh and recycled hydrogen. The hydrogenation reaction is carried out in a bubble column reactor, in the presence of a nickel based catalyst. The catalyst is maintained in a suspension with the aid of an external circulation loop. Most of the heat of reaction is removed by the vaporization of the product stream; the remaining reaction heat is removed in the external loop, by passing the reactor reflux stream through a heat exchanger against boiler feedwater, producing low pressure steam. Most of the benzene feed is converted in this step. The top gaseous product stream is directed to a fixed-bed reactor, where the remaining benzene content is converted to cyclohexane. The finishing hydrogenation reaction is conducted in the presence of a solid nickel based catalyst supported on alumina.

Hydrogen Recovery. The product stream is fed to a knock-out drum operated at high pressure. Most of the cyclohexane in the feed condenses producing two streams, one gaseous hydrogen-rich stream and a liquid cyclohexane-rich stream. The hydrogen stream is routed to the Recycle Compressor, where it is compressed to the Primary Reactor reaction pressure and recycled.

Purification. In a distillation column, the liquid cyclohexane-rich stream is stripped of lighter contaminants, such as methane, ethane and soluble hydrogen. Light-ends recovered from column’s top are used for fuel, while a cyclohexane stream with a residual benzene content that is lower than 100 ppm is obtained from column’s bottom.

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Features
  • Production Process Information
  • Process Consumptions
  • Labor Requirements
  • Plant Capital Cost Summary
  • Operating Cost Summary
  • Production Costs Datasheet
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 80 Pages | 22 Tables | 9 Images

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Table of Contents


Features
  • Production Process Information
  • Process Consumptions
  • Labor Requirements
  • Plant Capital Cost Summary
  • Operating Cost Summary
  • Production Costs Datasheet
  • Plant Capital Cost Details
  • Operating Cost Details
  • See All Features

 90 Pages | 28 Tables | 13 Images

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Updated with Q3 2024 Data

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Table of Contents


Features
  • 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
  • Costs in Different Countries Add-on
  • See All Features

  • 107 Pages | 34 Tables | 22 Images
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  • Updated with Q3 2024 Data
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Content Highlights

Plant Capital Cost Summary

Summary outlining the capital cost required for building the Cyclohexane 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 Cyclohexane 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 Cyclohexane 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 Cyclohexane 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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Cyclohexane from Benzene and Hydrogen (Vapor-Phase Process)

This feasibility study shows the economics of Cyclohexane production from benzene using a vapor phase hydrogenation process in the presence of a nickel-based catalyst. The economic analysis presented is based on a plant constructed in the United States.

Details: 200 kta United States-based plant | Q3 2024 | 107 pages | Issue B | From $999 USD

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