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Preparation of supported H3PW12040·6H2O for thiophenic compounds alkylation in FCC gasoline

Paper ID Volume ID Publish Year Pages File Format Full-Text
43575 45977 2008 6 PDF Available
Title
Preparation of supported H3PW12040·6H2O for thiophenic compounds alkylation in FCC gasoline
Abstract

In FCC gasolines, thiophenic compounds alkylation with olefins of the feed followed by distillation of heavy sulfur compounds is a good alternative to classical hydrodesulfurization to eliminate sulfur. Among several acidic catalysts, silica-supported H3PW12O40·6H2O (HPW) has been found to be the best catalyst for the alkylation of 3-methylthiophene (3MT) with 2-methyl-2-butene (2M2B) taken as a model reaction in heterogeneous liquid phase systems at 358 K under nitrogen. The preparation of this catalyst has been optimized for this reaction and continuous catalytic tests have proved that this solid was very promising compared to traditional supported phosphoric acid or zeolites previously tested and used in industrial processes.

Graphical abstractThe alkylation of 3-methylthiophene with an olefin has been studied over silica-supported H3PW12040·6H2O in heterogeneous liquid phase systems at 358 K under nitrogen. The preparation of this catalyst has been optimized for this reaction in correlation with catalytic activity. Results obtained in continuous flow proved that this catalyst was very promising to reach a high level of desulfurization.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
12-Phosphotungstic acid; Silica-supported heteropoly acid; 3-Methylthiophene alkylation; FCC gasolines; Desulfurization
First Page Preview
Preparation of supported H3PW12040·6H2O for thiophenic compounds alkylation in FCC gasoline
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 348, Issue 1, 30 September 2008, Pages 142–147
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis