Alkylation of Benzene with Propylene over H3PW12O40 Supported on MCM-41 and -48 Type Mesoporous Materials

The present work, the HPA Keggin structure was supported on four different MCM phase types (hexagonal, spherical, elliptical, and cubic); their catalytic properties were tested in the alkylation of benzene with propylene in order to produce cumene. In the reaction, parameters like propylene flow, reaction temperature, phase type, as well as WHSV-1, HPA, and Cs content in the best MCM phase support were studied. The results showed that the MCM-48 with (30 wt. % HPA) catalyst had the best behavior in catalytic activity, showing the higher conversion and selectivity toward cumene as the main product.

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Catalytic Decomposition of Methane: Effect of Various Factors on Catalytic Properties

Materials Science Forum ◽

10.4028/www.scientific.net/msf.544-545.23 ◽

2007 ◽

Vol 544-545 ◽

pp. 23-26 ◽

Cited By ~ 1

Author(s):

Hyun Chang Shin ◽

Hyun Jung Kim ◽

Dong Shin Yun ◽

Jung Whan Yoo ◽

Dong Jin Lee ◽

...

Keyword(s):

Catalytic Activity ◽

Reaction Temperature ◽

Methane Conversion ◽

Catalytic Properties ◽

Catalytic Decomposition ◽

Good Catalytic Activity ◽

Decomposition Of Methane ◽

Mesoporous Supports ◽

Mcm 41

The effect of various reaction factors such as amount of Ni loaded, temperature, and variety of supports on the methane conversion were investigated to obtain higher methane conversion. The high activities were observed over Ni(10 wt%)/SiO2 catalyst and at 650oC of reaction temperature. Catalysts using mesoporous supports such as SiO2 and MCM-41 showed good catalytic activity and stability.

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Promoter-induced synthesis of MCM-41 type mesoporous materials including Ti- and V-MCM-41 and their catalytic properties in oxidation reactions

Microporous and Mesoporous Materials ◽

10.1016/s1387-1811(02)00337-2 ◽

2002 ◽

Vol 53 (1-3) ◽

pp. 163-177 ◽

Cited By ~ 45

Author(s):

S.C. Laha ◽

R. Kumar

Keyword(s):

Mesoporous Materials ◽

Catalytic Properties ◽

Oxidation Reactions ◽

Mcm 41

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Structure, Acid Properties and Catalysis Performance of MCM-22 “Family” Zeolites on the Alkylation of Benzene with Propylene

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.549.283 ◽

2012 ◽

Vol 549 ◽

pp. 283-286 ◽

Cited By ~ 5

Author(s):

Fei Zhao ◽

Yu Zhang ◽

Shu Dong Geng ◽

Lian Fa Chen ◽

Wei Wang

Keyword(s):

Catalytic Activity ◽

Liquid Phase ◽

Reaction Temperature ◽

Dynamic Method ◽

N2 Adsorption ◽

Acid Properties ◽

Low Reaction Temperature ◽

Alkylation Of Benzene ◽

Adsorption Desorption

MCM-22 “family” zeolites (MCM-22, MCM-49 and MCM-56) have been synthesized hydrothermally by dynamic method. All materials were characterized by different techniques, such as XRD, N2 adsorption-desorption and NH3-TPD. The catalyst performance of MCM-22 “family” zeolites have been studied on the alkylation of benzene with propylene in liquid phase. Result shows that MCM-22 “family” zeolites are excellent alkylation catalysts for the produce of cumene. Compared to MCM-22 and MCM-49, MCM-56 shows higher catalytic activity in a relatively low reaction temperature and higher monoalkylation selectivity in a relatively low benzene-to-propylene ratio.

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Synthesis and Catalytic Activity of Ni/Ce-MCM-41 Mesoporous Catalysts for Hydrogen Production

MRS Proceedings ◽

10.1557/proc-1279-32 ◽

2010 ◽

Vol 1279 ◽

Author(s):

J. A. Wang ◽

J. C. Guevara ◽

L.F. Chen ◽

J. Salmones ◽

M. A. Valenzuela ◽

...

Keyword(s):

Catalytic Activity ◽

Mesoporous Materials ◽

Textural Properties ◽

Molar Ratio ◽

High Catalytic Activity ◽

Strong Temperature Dependence ◽

Structural Regularity ◽

Cerium Ion ◽

Ion Substitution ◽

Mcm 41

AbstractCe-containing MCM-41 mesoporous materials with large surface area and ordered pore structure system have been possible to be synthesized through a surfactant-assisted approach. The textural properties and structural regularity of the materials varied with the Si/Ce molar ratio. It is found that the band at 970 cm-1 in the FTIR spectrum of the Ce-MCM-41 mesoporous materials might be used as an indicator of the formation of the Ce-O-Si bond and its intensity as a measure of a degree of cerium ion substitution in the framework of Si-MCM-41. When Ni was loaded on the Ce-MCM-41 support, the Ni/Ce-MCM-41 catalysts show high catalytic activity which has strong temperature dependence. The methane conversion over these catalysts reached 60-75 % with a 100 % selectivity towards hydrogen.

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