I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator Briefs
Ethylene dichloride Recently, Chemetry (Moss Landing, Calif.; www.chemetrycorp.com) and Braskem…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment PDF Heat Transfer

Chementator: Propylene or diesel fuel? Just change the controls  

By Gerald Ondrey |

Petroleum refiners can have the option to produce more diesel fuel or propylene from their fluid catalytic crackers, depending on the demand, through a new process offered by Shell Global Solutions (edlinks.chemengonline.com/7373-541). The process enables a typical FCC (processing a large percentage of residual feed) to produce up to 19.3 wt.% light cycle oil (LCO, for diesel fuel) with 10 wt.% propylene, or about 12 wt.% propylene with 15.2 wt.% LCO. In contrast, a standard FCC, using a zeolite additive (ZSM-5) to improve propylene yield, produces 8.2 wt.% propylene and 14.7% LCO, says Pankaj Desai, licensing sales manager for Shell Global Solutions (U.S.) Inc. (Houston, Tex.). He adds that the process also achieves a seven-point cetane improvement in diesel fuel. The process, called MILOS (for Middle Distillates and Lower Olefins Selective process), adds a second riser to an FCC to produce additional propylene, leaving the existing riser for regular use or the production of additional LCO. Desai points out that the diesel and propylene modes represent the opposite, extreme ends of an FCC operation, so it is impossible to achieve optimal conditions for the production of both in a single riser. MILOS allows the FCC unit to be run anywhere…
Related Content
Biobutanol manufacturers merge
Green Biologics Ltd. (GBL; Abingdon, Oxfordshire, U.K.; www.greenbiologics.com), an industrial biotechnology company has merged with Butylfuel Inc., a U.S.-based renewable…

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
Video - Do you really need a thermowell?
The influence of IIoT in the dewatering process step of pigment production
The Big 6 level measurement technologies, where to use them and why
Top five technologies for drying in chemical applications
Crude distillation unit (CDU) optimization

View More