Effect of hierarchical porosity in Beta zeolites on the Beckmann rearrangement of oximes

2017 ◽  
Vol 7 (1) ◽  
pp. 181-190 ◽  
Author(s):  
M. Linares ◽  
C. Vargas ◽  
A. García ◽  
C. Ochoa-Hernández ◽  
J. Čejka ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Beckmann Rearrangement ◽  
Molar Ratios ◽  
Hierarchical Porosity ◽  
Beta Zeolites ◽  
Hierarchical Beta

Hierarchical Beta zeolites with different Si/Al molar ratios, synthesized by crystallization of silanized protozeolitic units, were investigated in the liquid-phase Beckmann rearrangement of cyclohexanone and cyclododecanone oximes.

Active sites for the liquid-phase beckmann rearrangement of cyclohexanone, acetophenone and cyclododecanone oximes, catalyzed by beta zeolites

1998 ◽  
Vol 177 (2) ◽  
pp. 267-272 ◽  
Author(s):  
M CAMBLOR ◽  
A CORMA ◽  
H GARCIA ◽  
V SEMMERHERLEDAN ◽  
S VALENCIA
Keyword(s):  
Liquid Phase ◽  
Active Sites ◽  
Beckmann Rearrangement ◽  
Beta Zeolites

Nanosized and delayered zeolitic materials for the liquid-phase Beckmann rearrangement of cyclododecanone oxime

2007 ◽  
Vol 250 (1) ◽  
pp. 161-170 ◽  
Author(s):  
P BOTELLA ◽  
A CORMA ◽  
S IBORRA ◽  
R MONTON ◽  
I RODRIGUEZ ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Beckmann Rearrangement ◽  
Zeolitic Materials

Synthesis of high-Si hierarchical beta zeolites without mesoporogen and their catalytic application in the methanol to propene reaction

2018 ◽  
Vol 8 (11) ◽  
pp. 2966-2974 ◽  
Author(s):  
Xuebin Zhao ◽  
Linying Wang ◽  
Peng Guo ◽  
Nana Yan ◽  
Tantan Sun ◽  
...  
Keyword(s):  
Single Crystalline ◽  
Catalytic Application ◽  
Beta Zeolites ◽  
First Time ◽  
Hierarchical Beta

High-Si single-crystalline beta zeolites with intracrystal mesopores were synthesized for the first time and investigated as catalysts for the methanol to propene (MTP) reaction.

Xylene Isomerization over Beta Zeolites in Liquid Phase

2018 ◽  
Vol 57 (16) ◽  
pp. 5568-5579 ◽  
Author(s):  
Qian Shi ◽  
Jonathan C. Gonçalves ◽  
Alexandre F. P. Ferreira ◽  
Marta G. Plaza ◽  
Alírio E. Rodrigues
Keyword(s):  
Liquid Phase ◽  
Beta Zeolites ◽  
Xylene Isomerization

In-situ structural reconstruction triggers the hydrothermal synthesis of hierarchical Ti-Beta zeolites for oxidative desulfurization

2021 ◽  
Author(s):  
Haikuo Ma ◽  
Haoyi Lin ◽  
Xiuquan Liu ◽  
Hongying Lü ◽  
Zhiguo Zhu
Keyword(s):  
Hydrothermal Synthesis ◽  
Active Sites ◽  
Oxidative Desulfurization ◽  
Zeolite Crystal ◽  
Efficient Approach ◽  
Hierarchical Porosity ◽  
Beta Zeolites

Fabricating hierarchical porosity in metallosilicate zeolite crystal is a facile and efficient approach to increase the accessibility of active sites and to enhance diffusion performance in the process of catalytic...

ChemInform Abstract: Liquid-Phase Alkylation of Benzene with Light Olefins Catalyzed by . beta. Zeolites.

ChemInform ◽  
2010 ◽  
Vol 27 (10) ◽  
pp. no-no
Author(s):  
G. BELLUSSI ◽  
G. PAZZUCONI ◽  
C. PEREGO ◽  
G. GIROTTI ◽  
G. TERZONI
Keyword(s):  
Liquid Phase ◽  
Light Olefins ◽  
Beta Zeolites ◽  
Alkylation Of Benzene

Highly Efficient Biodiesel Conversion from Soybean Oil Using Liquid-Phase Plasma Discharge Technology

2019 ◽  
Vol 62 (5) ◽  
pp. 1129-1134 ◽  
Author(s):  
Sarah Wu ◽  
Muhammad Aamir Bashir ◽  
Hsiang Hsieh ◽  
Anilkumar Krosuri ◽  
Armando McDonald
Keyword(s):  
Reaction Time ◽  
Liquid Phase ◽  
Soybean Oil ◽  
Applied Voltage ◽  
Plasma Discharge ◽  
Optimal Combination ◽  
Operating Parameters ◽  
Dielectric Plate ◽  
Molar Ratios ◽  
Liquid Phase Plasma

Abstract. In this study, the use of liquid-phase plasma discharge (LPPD) technology to accelerate the transesterification process was explored. An innovative LPPD reactor was first evaluated by varying the conductive opening size on the dielectric plate (0.75, 1.0, and 1.25 mm) coupled with five methanol to oil molar ratios (MOMR; 3, 4, 5, 6, and 7) and two liquid flowrates through the reactor (2.7 and 4.1 mL s-1) at a given catalyst (NaOH) to oil ratio (NaOR) of 0.8% (w/w). The optimal combination of opening size (1.0 mm), MOMR (5), and flowrate (2.7 mL s-1) was then fixed while the NaOR was varied from 0.4% to 1.2% (w/w) in 0.2% increments to determine the best NaOR for the reactor. The results showed that the best combination of the four operating parameters was an opening size of 1.0 mm, MOMR of 5, liquid flowrate of 2.7 mL s-1, and NaOR of 0.6% (w/w), with which a biodiesel conversion rate of 99.5% was obtained at an applied voltage of 1.2 kV. The transesterification reaction time was found to be only 923 ms. The developed LPPD technology has potential to position biodiesel competitively against petroleum diesel. Keywords: Biodiesel conversion, Liquid-phase plasma discharge, Soybean oil, Transesterification

Hierarchical Beta zeolites obtained in concentrated reaction mixtures as catalysts in tetrahydropyranylation of alcohols

2020 ◽  
Vol 594 ◽  
pp. 117380 ◽  
Author(s):  
Roman Barakov ◽  
Nataliya Shcherban ◽  
Pavel Yaremov ◽  
Igor Bezverkhyy ◽  
Valentina Tsyrina ◽  
...  
Keyword(s):  
Beta Zeolites ◽  
Hierarchical Beta
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