Catalytic Activity of ZSM-22 Zeolites in the Skeletal Isomerization Reaction of 1-Butene

1997 ◽  
Vol 36 (8) ◽  
pp. 2990-2995 ◽  
Author(s):  
Rune Byggningsbacka ◽  
Lars-Eric Lindfors ◽  
Narendra Kumar
Keyword(s):  
Catalytic Activity ◽  
Skeletal Isomerization ◽  
Isomerization Reaction

Influence of hydrothermal treatment conditions on the structure and catalytic activity of alumina during the skeletal isomerization of n-butenes

2012 ◽  
Vol 4 (2) ◽  
pp. 141-149 ◽  
Author(s):  
A. A. Lamberov ◽  
E. Yu. Sitnikova ◽  
I. N. Mukhambetov ◽  
R. F. Zalyaliev ◽  
R. R. Gil’mullin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Treatment ◽  
Skeletal Isomerization ◽  
Treatment Conditions

Templated coordination as a tool to increase the catalytic activity of metal aluminophosphates: the case of CoAPO-11

2019 ◽  
Vol 9 (17) ◽  
pp. 4505-4509
Author(s):  
Wenhan Chen ◽  
Guilong Qiao ◽  
Huijing Liu ◽  
Songshou Ye ◽  
Jinbao Zheng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Skeletal Isomerization

Site shifting by templated coordination aimed at enhancing the performance during n-butene skeletal isomerization under severe conditions.

Characterization of sulfated TiO2 prepared by the sol–gel method and its catalytic activity in the n-hexane isomerization reaction

2005 ◽  
Vol 225 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Lúcia K. Noda ◽  
Rusiene M. de Almeida ◽  
Luiz Fernando D. Probst ◽  
Norberto S. Gonçalves
Keyword(s):  
Catalytic Activity ◽  
Sol Gel ◽  
Isomerization Reaction ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sulfated Tio2

Selective isomerization of epoxides using magnetically recyclable ZSM-5 zeolite catalyst

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 78441-78447 ◽  
Author(s):  
Phan Huy Hoang ◽  
Bach Nguyen Xuan
Keyword(s):  
Catalytic Activity ◽  
High Efficiency ◽  
Zeolite Catalyst ◽  
Isomerization Reaction ◽  
High Catalytic Activity ◽  
Long Lifetime

The magnetically recyclable ZSM-5 zeolite (MZZ) with high catalytic activity, high efficiency in separation, recycling and long lifetime for epoxide isomerization reaction was presented.

Group 6 metal oxide-carbon aerogels. Their synthesis, characterization and catalytic activity in the skeletal isomerization of 1-butene

1999 ◽  
Vol 183 (2) ◽  
pp. 345-356 ◽  
Author(s):  
Carlos Moreno-Castilla ◽  
Francisco José Maldonado-Hódar ◽  
José Rivera-Utrilla ◽  
Enrique Rodrı́guez-Castellón
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Skeletal Isomerization ◽  
Carbon Aerogels ◽  
Group 6

Synthesis of Al-Containing Mesoporous Molecular Sieves and their Catalytic Performance to Isomerization Reaction of Endo-Tetrahydrodicyclo-Pentadiene

2011 ◽  
Vol 233-235 ◽  
pp. 234-237 ◽  
Author(s):  
Sa Liu ◽  
Jian Wei Guo ◽  
Chu Fen Yang ◽  
Long Huan Li ◽  
Yi Hua Cui
Keyword(s):  
Catalytic Activity ◽  
Molecular Sieves ◽  
Catalytic Performance ◽  
Mesoporous Molecular Sieves ◽  
Isomerization Reaction ◽  
Inorganic Acid ◽  
Ft Ir ◽  
Desorption Isotherms ◽  
Adsorption Desorption ◽  
Mcm 41

Al-containing mesoporous molecular sieves(Al-MCM-41) were synthesized at ambient temperature. The structures of samples were characterized by XRD, N2-adsorption/desorption isotherms and FT-IR, etc. The evaluation results showed that Al-MCM-41 had higher catalytic activity for isomerization conversion of endo-tetrahydrodicyclo-pentadiene (endo-TCD) into exo-tetrahydrodicyclo-pentadiene (exo-TCD) and adamantane (AdH). Loading inorganic acid on the surface of Al-MCM-41 led increase of its catalytic activity and the yield of adamantane.

scholarly journals Content of sulfates and their stability: Key factors determining the catalytic activity of sulfated zirconia catalysts

2007 ◽  
Vol 72 (7) ◽  
pp. 679-686 ◽  
Author(s):  
Aleksandra Zarubica ◽  
Paula Putanov ◽  
Goran Boskovic
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Sulfated Zirconia ◽  
Preparation Method ◽  
Morphological Properties ◽  
Isomerization Reaction ◽  
Catalyst Precursor ◽  
Key Factors ◽  
Short Life ◽  
Sulfated Zirconia Catalysts

Two series of sulfated zirconia catalysts were synthesized from various precursors using mono- or multi-step sequence preparations under laboratory conditions. Their activities/selectivities in the isomerization reaction of n-hexane were correlated to their textural, structural and morphological properties. The slightly higher activity of a commercially sulfated Zr(OH)4-based catalyst is in agreement with the differences in the content of SO24 - ions and their thermal stability, textural and structural properties, i.e., crystallite size and possible imperfection of the incorporation of sulfate groups in the multi-step synthesis of the catalyst having a nitrate origin. The employment of H2 as the carrier gas resulted in no catalytic activity, regardless of the catalyst precursor, preparation method and calcination temperature. When the isomerization reaction was performed under He, the relatively short life-times of all catalyst samples were caused by fast deactivation due to coking in the absence of H2. .

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