fulltext.study @t Gmail

Preparation of MgO/MCM-22 catalysts by a novel two-step impregnation and their shape-selective performance in the synthesis of p-xylene

Paper ID Volume ID Publish Year Pages File Format Full-Text
49739 46764 2014 5 PDF Available
Title
Preparation of MgO/MCM-22 catalysts by a novel two-step impregnation and their shape-selective performance in the synthesis of p-xylene
Abstract

•MgO/MCM-22 catalysts were prepared by a novel two-step impregnation method.•The coverage of external acid sites and the adjustment of pore size of zeolite were achieved.•Excellent para-selectivity in alkylation of toluene with DMC was realized.

Shape-selective catalysts of MgO/MCM-22 were prepared by a novel two-step impregnation method and evaluated in the catalytic synthesis of p-xylene by alkylation of toluene with dimethyl carbonate. The two-step impregnation process combines the advantages of general impregnation and complexation impregnation for the preparation of metallic-oxide modified zeolite shape-selective catalysts. The coverage of the acidic sites on the external surface of the zeolite and the adjustment of the pore size of the zeolite can be achieved by two-step impregnation. Consequently, significant improvement in selectivity for p-xylene over the MgO/MCM-22 catalyst was realized.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
p-xylene; Shape-selective catalysis; Two-step impregnation; MgO; MCM-22
First Page Preview
Preparation of MgO/MCM-22 catalysts by a novel two-step impregnation and their shape-selective performance in the synthesis of p-xylene
Get Full-Text Now
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 45, 5 February 2014, Pages 49–53
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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