Propylene Production from Vacuum Gas Oil (Catalytic Pyrolysis)
Propylene Production Costs Report | Issue L | Q4 2024
| Report Details |
| 250 kta China-based plant | Q4 2024 | 107 pages |
This report presents a cost analysis of a 250 kta (kilo metric ton per annum) China-based plant. You can add a customized cost analysis, assuming another location (country), when ordering a premium edition of this report.
Report Abstract
This report presents the economics of Polymer Grade (PG) Propylene production process from vacuum gas oil (VGO) in China. The process examined in this report is similar to Sinopec Catalytic Pyrolysis Process (CPP) technology, in which VGO is converted to Propylene and ethylene, generating also propane, C4 fraction, C5+ naphtha and fuel oil as by-products.
The report provides a comprehensive study of Propylene production and related Propylene production cost, covering three key aspects: a complete description of the Propylene production process examined; an in-depth analysis of the related Propylene plant capital cost (Capex); and an evaluation of the respective Propylene plant operating costs (Opex).
The Propylene 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 Propylene 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 Propylene 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 three major sections: (1) Cracking; and (2) Fractionation.
Cracking. Initially, vacuum gas oil are treated with hydrogen for the removal of impurities such as sulfur, nitrogen and metals. The cracking reactions occur in a vertical reactor riser, in which the vacuum gas oil stream contacts regenerated zeolite catalysts. The oil is vaporized by the hot catalyst and cracked to lighter products. The catalysts are then fed to a regenerator where coke deposited in the catalysts is burned with air at high temperatures and recycled to the reactors.
Fractionation. The reactor output is sent to main fractionation, in which they are separated in various products. Initially, light cycle oil and clarified oil are obtained as fuel oil. The main stream is compressed and separated in a high-pressure separator, used to separate liquid (heavy components) from gases (light components). The liquid is purified in a stripper that strips off C2- from the liquid phase and sends it back to separator. The off-gas from HP separator is purified in an absorption column by means of a MDEA solvent. The treated stream is compressed and fed to a cold box to remove hydrogen and light hydrocarbons, which are used as fuel. The main products stream is then passed through a destillation train for separation. In the demethanizer, residual light ends and hydrogen are separated and fed to the deethanizer. The top of the deethanizer is fractionated in the C2-splitter. Ethylene is obtained as a co-product. The deethanizer bottom stream is fed to a depropanizer, which distillates C3 components. This stream is then fed to the C3-splitter. PG propylene product is drawn from the column from overhead. The Depropanizer bottom stream is separated into a crude C4 stream, recovered as column overhead product, and pyrolysis gasoline by-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 Propylene 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 Propylene 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 Propylene 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 Propylene 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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