fulltext.study @t Gmail

Synthesis of ZSM-48 zeolites and their catalytic performance in C4-olefin cracking reactions

Paper ID Volume ID Publish Year Pages File Format Full-Text
44192 46007 2006 8 PDF Available
Title
Synthesis of ZSM-48 zeolites and their catalytic performance in C4-olefin cracking reactions
Abstract

ZSM-48 zeolite samples with a series of SiO2/Al2O3 ratios were synthesized in the hydrothermal system of Na2O–SiO2–Al2O3–H2N(CH2)6NH2 (HDA). The samples were characterized by X-ray powder diffraction, N2 adsorption, scanning electron microscopy, temperature-programmed desorption of ammonia, thermo-gravimetric analysis and chemical analysis. Both the OH−/SiO2 and SiO2/Al2O3 ratios played key roles for the formation of pure ZSM-48. C4-olefin cracking reactions were carried out on these ZSM-48 zeolites to produce propylene. Compared with currently used HZSM-5 zeolite, HZSM-48 zeolite exhibits a more excellent selectivity for the aimed olefins, especially for those with lower SiO2/Al2O3 ratios. The difference of catalytic performance of HZSM-48 and HZSM-5 zeolites for the cracking of C4-olefin can be attributed to their different acidities. The influences of reaction temperature and liquid hour space velocity on the catalytic performance of the HZSM-48 catalysts were investigated. The reasons for the deactivation of HZSM-48 zeolite in C4-olefin cracking reactions were also studied.

Keywords
ZSM-48; Zeolite; Cracking; C4-olefin; Propylene
First Page Preview
Synthesis of ZSM-48 zeolites and their catalytic performance in C4-olefin cracking reactions
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: Applied Catalysis A: General - Volume 299, 17 January 2006, Pages 167–174
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