Alkaline earth metal modified H-mordenites. Their catalytic properties in the isopropylation of Biphenyl

Sugi, Yoshihiro, Tamada, Hiroshi, Kuriki, Akiko, Komura, Kenichi, Kubota, Yoshihiro, Joseph, Stalin, Chokkalingam, Anand, Newehy, Mohamed El, Al-Deyab, Salem S., Jang, Hoi-Gu, Kim, Jong-Ho, Seo, Gon and Vinu, Ajayan (2015) Alkaline earth metal modified H-mordenites. Their catalytic properties in the isopropylation of Biphenyl. Industrial and Engineering Chemistry Research, 54 49: 12283-12292. doi:10.1021/acs.iecr.5b03562


Author Sugi, Yoshihiro
Tamada, Hiroshi
Kuriki, Akiko
Komura, Kenichi
Kubota, Yoshihiro
Joseph, Stalin
Chokkalingam, Anand
Newehy, Mohamed El
Al-Deyab, Salem S.
Jang, Hoi-Gu
Kim, Jong-Ho
Seo, Gon
Vinu, Ajayan
Title Alkaline earth metal modified H-mordenites. Their catalytic properties in the isopropylation of Biphenyl
Journal name Industrial and Engineering Chemistry Research   Check publisher's open access policy
ISSN 1520-5045
0888-5885
Publication date 2015-10-30
Sub-type Article (original research)
DOI 10.1021/acs.iecr.5b03562
Open Access Status Not Open Access
Volume 54
Issue 49
Start page 12283
End page 12292
Total pages 10
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Subject 1600 Chemistry
1500 Chemical Engineering
2209 Industrial and Manufacturing Engineering
Abstract Alkaline earth metal modification of H-mordenite (MOR) was examined in the isopropylation of biphenyl (BP). Of interest was the chemical and textural changes on catalytic properties as a result of the modification. At low loadings of 0.2–0.5 mmol/g of the metals, the isomerization of 4,4′-diisopropybiphenyl (4,4′-DIPB) was effectively prevented at temperatures as high as 300 °C, resulting in high selectivities for 4,4′-DIPB. Metals reduce the acid amounts by low loadings, and deactivate external acid sites. At the loading of 2 mmol/g, only BaMOR was active with high selectivities for 4,4′-DIPB; however, other metals lost catalytic activity with the increase in the loading. These differences are ascribed to changes of acidity and pore size. The modification of barium with high loading formed moderate acidities, and kept pores open for the access of bulky molecules, resulting in the selective formation of 4,4′-DIPB; however, other metals declined the activities by choking pores for magnesium and calcium or by losing acidity for strontium.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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