The skeletal isomerization of C4-C7 1-olefins over ferrierite and ZSM-5 zeolite catalysts

2001 ◽  
Vol 18 (1) ◽  
pp. 120-126 ◽  
Author(s):  
Wang-Gi Kim ◽  
Jong-Ho Kim ◽  
Byoung Joon Ahn ◽  
Gon Seo
Keyword(s):  
Zeolite Catalysts ◽  
Skeletal Isomerization

Skeletal Isomerization of 1-Butene on 10-Member Ring Zeolite Catalysts

1995 ◽  
Vol 151 (2) ◽  
pp. 467-469 ◽  
Author(s):  
C.L. Oyoung ◽  
R.J. Pellet ◽  
D.G. Casey ◽  
J.R. Ugolini ◽  
R.A. Sawicki
Keyword(s):  
Zeolite Catalysts ◽  
Skeletal Isomerization

Entropy driven preference for alkene adsorption at the pore mouth as the origin of pore-mouth catalysis for alkane hydroisomerization in 1D zeolites

2021 ◽  
Author(s):  
Aleksandr A. Shubin ◽  
Igor L. Zilberberg
Keyword(s):  
Theoretical Basis ◽  
Zeolite Catalysts ◽  
Skeletal Isomerization ◽  
Pore Mouth ◽  
Positional Selectivity

This work presents a theoretical basis for a pore-mouth catalysis model developed to explain the positional selectivity of skeletal isomerization on bifunctional metal acid-zeolite catalysts.

scholarly journals Monomolecular Skeletal Isomerization of 1-Butene over Selective Zeolite Catalysts

ACS Catalysis ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2270-2274 ◽  
Author(s):  
Donghui Jo ◽  
Suk Bong Hong ◽  
Miguel A. Camblor
Keyword(s):  
Zeolite Catalysts ◽  
Skeletal Isomerization

Selective skeletal isomerization of n-butene over modified MCM-22 zeolite catalysts

2005 ◽  
Vol 85 (2) ◽  
pp. 245-251
Author(s):  
Yongchen Shang ◽  
Wenxiang Zhang ◽  
Mingjun Jia ◽  
Piaoping Yang ◽  
Dazhen Jiang ◽  
...  
Keyword(s):  
Zeolite Catalysts ◽  
Skeletal Isomerization

Advances in ultramicrotomy for physical sciences applications

1993 ◽  
Vol 51 ◽  
pp. 710-711
Author(s):  
G. McMahon ◽  
T. Malis
Keyword(s):  
Particle Surface ◽  
Zeolite Catalysts ◽  
Physical Sciences ◽  
Pull Out ◽  
Large Particles ◽  
Novel Applications ◽  
Metal Wires ◽  
Frequent Problem ◽  
Specific Orientation ◽  
Diamond Knife

As with all techniques which are relatively new and therefore underutilized, diamond knife sectioning in the physical sciences continues to see both developments of the technique and novel applications.Technique Developments Development of specific orientation/embedding procedures for small pieces of awkward shape is exemplified by the work of Bradley et al on large, rather fragile particles of nuclear waste glass. At the same time, the frequent problem of pullout with large particles can be reduced by roughening of the particle surface, and a proven methodology using a commercial coupling agent developed for glasses has been utilized with good results on large zeolite catalysts. The same principle (using acid etches) should work for ceramic fibres or metal wires which may only partially pull out but result in unacceptably thick sections. Researchers from the life sciences continue to develop aspects of embedding media which may be applicable to certain cases in the physical sciences.

Performance of Ag-HZSM-5 Zeolite Catalysts in n-heptane Conversion

2017 ◽  
Vol 68 (1) ◽  
pp. 116-120
Author(s):  
Iuliean Vasile Asaftei ◽  
Neculai Catalin Lungu ◽  
Lucian Mihail Birsa ◽  
Ioan Gabriel Sandu ◽  
Laura Gabriela Sarbu ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Metal Content ◽  
Pulse Method ◽  
Acid Strength ◽  
Strength Distribution ◽  
Zeolite Catalysts ◽  
Benzene Toluene ◽  
Acid Strength Distribution ◽  
Silver Cations ◽  
Heptane Conversion

The conversion of n-heptanes into aromatic hydrocarbons benzene, toluene and xylenes (BTX), by the chromatographic pulse method in the temperature range of 673 - 823K was performed over the HZSM-5 and Ag-HZSM-5 zeolites modified by ion exchange with AgNO3 aqueous solutions. The catalysts, HZSM-5 (SiO2/Al2O3 = 33.9), and Ag-HZSM-5 (Ag1-HZSM-5 wt. % Ag1.02, Ag2-HZSM-5 wt. % Ag 1.62; and Ag3-HZSM-5 wt. % Ag 2.05 having different acid strength distribution exhibit a conversion and a yield of aromatics depending on temperature and metal content. The yield of aromatic hydrocarbons BTX appreciably increased by incorporating silver cations Ag+ into HZSM-5.

scholarly journals Selective Production of Aromatics from 2-Octanol on Zinc Ion-Exchanged MFI Zeolite Catalysts

Catalysts ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2122-2133 ◽  
Author(s):  
Masakazu Iwamoto ◽  
Ryota Takezawa ◽  
Masao Morimoto
Keyword(s):  
Zinc Ion ◽  
Zeolite Catalysts ◽  
Mfi Zeolite

scholarly journals Synthesis of Renewable Diesel through Hydrodeoxygenation Using Pd/zeolite Catalysts

2014 ◽  
Vol 9 ◽  
pp. 139-150 ◽  
Author(s):  
Bambang Heru Susanto ◽  
Mohammad Nasikin ◽  
Sukirno ◽  
Andri Wiyo
Keyword(s):  
Zeolite Catalysts ◽  
Renewable Diesel
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