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Benzene reduction in gasoline by olefin alkylation: Effect of the catalyst on a C6-reformate heart-cut

Paper ID Volume ID Publish Year Pages File Format Full-Text
42302 45920 2009 8 PDF Available
Title
Benzene reduction in gasoline by olefin alkylation: Effect of the catalyst on a C6-reformate heart-cut
Abstract

The study presented here compares the performance of different zeolite catalysts (Beta, ZSM-5 and Beta:ZSM-5 composites) for benzene alkylation by propylene with a benzene enriched reformate heart-cut (13 wt% benzene). The experiments were carried out in a batch system with a 1/1 benzene:propylene mole ratio at 220 °C for 1 h. The results showed that an increase in conversion produced decreases in cumene selectivity and oligomers formation. These results were associated to Beta contained catalysts. Lower conversions related to a higher oligomers production and lower di-isorpropylbenzene isomers formation, were obtained with a ZSM-5 catalyst. Results were compared with pure benzene/propylene alkylation tests carried out at similar experimental conditions.

Graphical abstractThe production of a more environmentally suitable gasoline by removing substantial portions of benzene by alkylation with propylene was studied on a real feedstock with Beta, ZSM-5 and Beta:ZSM-5 composites as catalysts. Beta catalyst was associated with higher benzene conversions and cumene and di-isopropylbenzene (DIPB) isomers formation. Lower conversions with high oligomers production were obtained with a ZSM-5 catalyst.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Benzene; Gasoline; Aromatic; Alkylation; Olefin; Propene; Zeolites; Beta; ZSM-5
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Benzene reduction in gasoline by olefin alkylation: Effect of the catalyst on a C6-reformate heart-cut
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 363, Issues 1–2, 1 July 2009, Pages 19–26
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us