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In this page you will find free data about Butene, including:
- What is Butene
- How to make Butene
- Butene uses and applications
This page presents brief synopsis of Butene production technology, describing, in a concise way, relevant technical and economic aspects. Each manufacturing process description will consist of:
- Major process steps
- Simplified, schematic flow diagram & key equipment
- Important safety or environmental considerations
- Economic perspective, comprising capital expenditures and/or operating expenses
Butene Manufacture via Ethylene Dimerization
Olefin dimerization is a reaction where two molecules of a monomer combine to form a dimer. It can be utilized to produce normal butenes from ethylene, which can be provided by a steam cracker.
Dimerization of ethylene is generally applied when butene is required in another part of a petrochemical complex. For instance, the dimerization unit may be integrated with a metathesis unit, to produce polymer-grade propylene, a commodity chemical with a high added value. In this integration, n-butene from dimerization is reacted over a metathesis catalyst with ethylene to form two molecules of propylene, as shown in the block flow diagram.
A dimerization process for butenes production, similar to CB&I Lummus Ethylene Dimerization Technology, is analyzed and depicted in the flowsheet. The following is a brief description of the dimerization processing scheme:
Catalyst Preparation and Treatment Section
Catalyst and co-catalyst are properly unloaded, stored and pumped into the catalyst preparation section. Ethylene is treated in the purification unit, prior to mixing with the catalyst, to remove potential dimerization-catalyst poisons.
The reaction system produces normal butenes, mainly 2-butene, as ...
Catalyst Quench Section
In the quench section, the catalysts are deactivated ...
In the debutenizer tower, the overhead butenes and any unconverted ethylene ...
Total Installed Cost
An economic evaluation of the ISBL (inside battery limits) total installed cost, which accounts for the ethylene treatment unit and the dimerization unit, was conducted based on data from ...