I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chementator Briefs
Ultrathin membrane Researchers led by professors Hideto Matsuyama and Tomohisa…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUS
Focus on Sensors
Wireless transmitters save on level sensor installation Reduce the cost…
NEW PRODUCTS + Show More SHOW PREVIEWS

Comment PDF

Butene via Ethylene Dimerization

By Chemical Engineering |

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, in Figure 1.  FIGURE 1. Integration between dimerization and metathesis FIGURE 2. n-butenes production process similar to Lummus Ethylene Dimerization Technology The process A dimerization process for butenes production, similar to CB&I Lummus (The Woodlands, Tex.; www.cbi.com) Ethylene Dimerization Technology, is analyzed and depicted in the flowsheet (Figure 2). 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…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Improving chemical production processes with IIoT and AI technologies
New filtration technology for highly corrosive media
PTA production: Lowering OPEX without compromising on quality
Sure that zero means zero in your zero-liquid discharge (ZLD) process?
How separation processes profit from Industrial Internet of Things (IIoT) solutions

View More