Sustainable solid catalyst alkylation of commercial olefins by regeneration with supercritical isobutane

Journal Article · Thu Dec 01 04:00:00 EST 2005 · Industrial and Engineering Chemistry Research

OSTI ID:912366

Ginosar, Daniel M; Thompson, David N; Burch, Kyle C

Supercritical isobutane regeneration of a USY zeolite alkylation catalyst was examined in a continuous, automated reaction / regeneration system. Two feeds were studied; a synthetic isobutane / 2-butene blend, and a commercial refinery isoparaffin / olefin blend. The refinery blend was minimally treated, containing a variety of light olefins, and contaminants, including butadiene, oxygenates and sulfur, which are well known to cause severe catalyst deactivation. Synthetic feed experiments showed that high levels of butene conversion was maintained for more than 200 hours time on stream, and that product quality and catalyst maintenance was relatively stable over the course of the experiment using a 3 hour reaction / 3 hour regeneration cycle. Catalyst activity maintenance was lower when the commercial feed was employed. High levels of alkene conversion were maintained for 78 hours and 192 hours using a 3 hour reaction / 3 hour regeneration cycle and a 2 hour reaction / 2 hour regeneration cycle, respectively.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - FE
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 912366
• Report Number(s): INL/JOU-05-00486
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 2 Vol. 45; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
2-METHYLPROPANE
ALKENES
ALKYLATION
BUTADIENE
BUTENES
CATALYSTS
DEACTIVATION
MAINTENANCE
REGENERATION
SULFUR
ZEOLITES
alkylation
isobutane
olefins
regeneration