Technology Economics: Ethylene Production Via Ethanol Dehydration


Book Description

Ethylene is most frequently produced from petroleum-based feedstock. However, rising oil prices coupled with global concerns about sustainability and global warming have motivated research into ethylene manufacture from renewable sources. Fermentation-derived ethanol has been increasingly used as raw material for renewable ethylene production, presenting the primary advantage of being made from CO2 removed from the atmosphere. The technical aspects of a process to produce ethylene via ethanol dehydration are reviewed, as well as the key economic parameters for the profitability of an ethanol dehydration plant. This study follows the same pattern as all Technology Economics studies developed by Intratec. About Technology Economics Technology Economics studies are advisory services ordered by leading chemical companies, which are disclosed to public if they allow so. All Technology Economics studies are based on the same rigorous methodology and well-defined structure, encompassing: Process flow diagrams and material balances Raw material and utility consumptions Major equipment sizing Inside and outside battery limits capital costs Detailed fixed and variable manufacturing expenses




Ethylene Production via Ethanol Dehydration - Cost Analysis - Ethylene E82A


Book Description

This report presents a cost analysis of polymer grade (PG) Ethylene production from hydrous ethanol using a dehydration process. The process under analysis is similar to the processes developed by Chematur and Petron. In this process, the reaction system is composed of multiple reactors in series and a single furnace. The system uses ethanol as heating fluid, with no injection of additional steam. This report examines one-time costs associated with the construction of a United States-based plant and the continuing costs associated with the daily operation of such a plant. More specifically, it discusses: * Capital Investment, broken down by: - Total fixed capital required, divided in production unit (ISBL); infrastructure (OSBL) and contingency - Alternative perspective on the total fixed capital, divided in direct costs, indirect costs and contingency - Working capital and costs incurred during industrial plant commissioning and start-up * Production cost, broken down by: - Manufacturing variable costs (raw materials, utilities) - Manufacturing fixed costs (maintenance costs, operating charges, plant overhead, local taxes and insurance) - Depreciation and corporate overhead costs * Raw materials consumption, products generation and labor requirements * Process block flow diagram and description of industrial site installations (production unit and infrastructure) This report was developed based essentially on the following reference(s): US Patent 20130178674, issued to Petron in 2013 Keywords: Ethene, Ethyl Alcohol, Vapor-Phase Dehydration, Fixed-Bed Reactor, Renewable Feedstock, Green Ethylene




Ethylene Production via Ethanol Dehydration - Cost Analysis - Ethylene E81A


Book Description

This report presents a cost analysis of polymer grade (PG) Ethylene production from hydrous ethanol using a dehydration process. The process under analysis is similar to the one proposed by BP Chemicals. This report examines one-time costs associated with the construction of a United States-based plant and the continuing costs associated with the daily operation of such a plant. More specifically, it discusses: * Capital Investment, broken down by: - Total fixed capital required, divided in production unit (ISBL); infrastructure (OSBL) and contingency - Alternative perspective on the total fixed capital, divided in direct costs, indirect costs and contingency - Working capital and costs incurred during industrial plant commissioning and start-up * Production cost, broken down by: - Manufacturing variable costs (raw materials, utilities) - Manufacturing fixed costs (maintenance costs, operating charges, plant overhead, local taxes and insurance) - Depreciation and corporate overhead costs * Raw materials consumption, products generation and labor requirements * Process block flow diagram and description of industrial site installations (production unit and infrastructure) This report was developed based essentially on the following reference(s): US Patent 8426664, issued to BP in 2013 Keywords: Ethene, Ethyl Alcohol, Vapor-Phase Dehydration, Diethyl Ether, Renewable Feedstock, Green Ethylene




Ethylene Production via Ethanol Dehydration - Cost Analysis - Ethylene E83A


Book Description

This report presents a cost analysis of polymer grade (PG) Ethylene production from hydrous ethanol using a dehydration process. The process under analysis is similar to the processes developed by Braskem and Petrobras. In this process, the reaction system is composed of multiple reactors and multiple furnaces. Before feeds each reactor, steam is mixed with ethanol as diluent to avoid an excessive temperature drop as dehydration reaction proceeds. This report was developed based essentially on the following reference(s): Keywords: Ethene, Ethyl Alcohol, Vapor-Phase Dehydration, Fixed-Bed Reactor, Renewable Feedstock, Green Ethylene




Ethylene Production via Ethanol Dehydration - Cost Analysis - Ethylene E85A


Book Description

This report presents a cost analysis of polymer grade (PG) Ethylene production from hydrous ethanol using a dehydration process. The process under analysis is similar to the process developed by Dow Chemical. In this process, a selective oxidation reactor is used in the purification step to remove CO and hydrogen from the process. This report was developed based essentially on the following reference(s): (1) WO Patent 2011087478 (2) WO Patent 2011/002699, both issued to Dow Chemical Keywords: Ethene, Ethyl Alcohol, Selective Oxidation, Vapor-Phase Dehydration, Fixed-Bed Reactor, Renewable Feedstock, Green Ethylene




Ethylene Production via Ethanol Dehydration - Cost Analysis - Ethylene E84A


Book Description

This report presents a cost analysis of polymer grade (PG) Ethylene production from hydrous ethanol using a dehydration process. The process under analysis is similar to the process developed by Scientific Design. In this process ethanol is dehydrated in the vapor phase to Ethylene in a system comprised of 1 reactor and 1 furnace. The product from reaction is passed through quench, compression and distillation, so Polymer Grade Ethylene can be obtained. This report was developed based essentially on the following reference(s): Bruscino, M., 'Biorefineries: Fact or Fiction?', Hydrocarbon Processing, August 2009, Vol. 88 No. 8 p.65-70 Keywords: Ethene, Ethyl Alcohol, SD, Syndol Catalyst, Vapor-Phase Dehydration, Fixed-Bed Reactor, Renewable Feedstock, Green Ethylene




CG Ethylene Production via Ethanol Dehydration - Cost Analysis - Ethylene EB4A


Book Description

This report presents a cost analysis of chemical grade (CG) Ethylene production from hydrous ethanol using a dehydration process. The process under analysis is similar to the process developed by Scientific Design. In this process, the reaction system is comprised of only 1 reactor and 1 furnace. This report was developed based essentially on the following reference(s): Keywords: Ethene, Ethyl Alcohol, SD, Syndol Catalyst, Vapor-Phase Dehydration, Fixed-Bed Reactor, Renewable Feedstock, Green Ethylene




Ethylene Production Cost Analysis - Overview - Ethylene AA01


Book Description

This report presents alternatives for producing Ethylene from different feedstocks and a cost comparison of these alternatives, across different countries. More specifically, the report compares the costs of Ethylene production through the following pathways: * Pathway 1: Ethylene Production from Ethane * Pathway 2: Ethylene Production from Ethane and Propane * Pathway 3: Green Ethylene Production from Ethanol In Pathways 1 and 2, Ethylene is produced via steam cracking of different feedstocks: ethane and a mixture of ethane and propane. In Pathway 3, Ethylene is produced from ethanol, which is a renewable feedstock. The analysis presented in this report includes: * A comparison of the economic potential of the pathways listed above in several countries, comprising: - Comparative analysis of capital costs - Comparative analysis of production costs - Comparison between product price and raw materials costs of each pathway * An overview of each production pathway, including: - Raw material(s) consumption figures and product(s) generated - Related technology licensors and block flow diagram of representative industrial processes Keywords: Hydrocarbon Pyrolysis, Cracking Furnace, Ethene, Propene, Shale Gas, CB&I Lummus, Technip, Shaw Stone & Webster, Kellogg-Braun & Root, KBR, Linde, Green Ethylene, Braskem, Chematur Technologies, Petron Scientech, Scientific Design, Dow Chemical, BP, Ethanol Dehydration




Membranes on Polyolefins Plants Vent Recovery


Book Description

Gas separation by membranes has acquired increasing importance in the petrochemical industry and is now a relatively well-established unit operation, especially in the monomer recovery of polymer production processes. Considering the current tight monomers market, polymer degassing steps present potential improvement opportunities, through the recovery of vent streams containing monomers. The economic analysis presented in this report is based upon the installation of a membrane-based propylene recovery unit in a polypropylene plant, a unit similar to MTR VaporSep(r). Such measure was demonstrated to be attractive in the US Gulf Coast, due to propylene scarcity, which has recently raised its market value. The alternative of using such vent streams as fuel showed to be less interesting, since fuel prices are low, due to natural gas growing offerings. About the Publication Program The Improvement Economics Program is a program that provides, by way of periodic reports, insightful and unbiased reviews on process improvement opportunities, from both a technical and economic perspective. Each report presents the following topics: opportunity description schematics, such as flow diagrams technical details, such as heat and material balances, key performance indicators environmental impact analysis capital and operating costs breakdown alternative solutions overview




Research Economics: Green Ethylene from Ethanol


Book Description

Rising oil prices and global concerns about sustainability and global warming have motivated research into ethylene manufacture from renewable sources. This report reviews the production of ethylene from ethanol dehydration in a process based on the patent published by BP Chemicals. It is presented a technical and economic evaluation of a unit located in the US Gulf Coast. In addition, a sensitivity analysis was performed in which the effects of variations in prices and technical parameters on the investment and the operating costs were studied. Green ethylene must be sold with an increased premium over fossil-based ethylene of about 50% in order to make the investment attractive. This study follows the same pattern as all Research Potential studies developed by Intratec. About Research Potential Research Potential studies are advisory services ordered by leading chemical companies, which are disclosed to public after an agreeded upon period of time. All Research Potential studies are based on the same rigorous methodology and well-defined structure, encompassing: Process flow diagrams and material balances Raw material and utility consumptions Major equipment sizing Inside and outside battery limits capital costs Detailed fixed and variable manufacturing expenses Sensitivity analysis