Preparation of hierarchical β and Y zeolite-containing mesoporous silica–aluminas and their properties for catalytic cracking of n-dodecane

2012 ◽  
Vol 295 ◽  
pp. 81-90 ◽  
Author(s):  
Atsushi Ishihara ◽  
Kentarou Inui ◽  
Tadanori Hashimoto ◽  
Hiroyuki Nasu
Keyword(s):  
Mesoporous Silica ◽  
Catalytic Cracking ◽  
Y Zeolite

An analytical microscopic study of metals in fluidized catalytic cracking catalyst

1986 ◽  
Vol 44 ◽  
pp. 854-855
Author(s):  
Clifford S. Rainey
Keyword(s):  
Electron Microscopy ◽  
Spatial Distribution ◽  
Catalytic Cracking ◽  
Catalyst Deactivation ◽  
Coke Formation ◽  
Acid Sites ◽  
Y Zeolite ◽  
Fcc Catalyst ◽  
Fluidized Catalytic Cracking ◽  
High Regeneration

The spatial distribution of V and Ni deposited within fluidized catalytic cracking (FCC) catalyst is studied because these metals contribute to catalyst deactivation. Y zeolite in FCC microspheres are high SiO2 aluminosilicates with molecular-sized channels that contain a mixture of lanthanoids. They must withstand high regeneration temperatures and retain acid sites needed for cracking of hydrocarbons, a process essential for efficient gasoline production. Zeolite in combination with V to form vanadates, or less diffusion in the channels due to coke formation, may deactivate catalyst. Other factors such as metal "skins", microsphere sintering, and attrition may also be involved. SEM of FCC fracture surfaces, AEM of Y zeolite, and electron microscopy of this work are developed to better understand and minimize catalyst deactivation.

Catechol production from lignin by Al-doped mesoporous silica catalytic cracking

2016 ◽  
Vol 121 ◽  
pp. 318-328 ◽  
Author(s):  
Sirima Jeenpadiphat ◽  
Isara Mongkolpichayarak ◽  
Duangamol Nuntasri Tungasmita
Keyword(s):  
Mesoporous Silica ◽  
Catalytic Cracking

A new composite consisting of Y zeolite and ZrO2 for fluid catalytic cracking reaction

2020 ◽  
Vol 200 ◽  
pp. 108317
Author(s):  
Wanrong Liu ◽  
Xinmei Liu ◽  
Yu Gu ◽  
Yuxiang Liu ◽  
Zhumo Yu ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Fluid Catalytic Cracking ◽  
Y Zeolite ◽  
Cracking Reaction ◽  
Catalytic Cracking Reaction

Preparation of Y Zeolite-Based Catalysts and their Catalytic Cracking Performances of Venezuelan Heavy Oil

2012 ◽  
Vol 608-609 ◽  
pp. 1407-1412
Author(s):  
Peng Hui Zeng ◽  
Bao Jian Shen ◽  
Sheng Fu Ji ◽  
Yun Liang ◽  
Xiang Hai Meng
Keyword(s):  
Pore Structure ◽  
Heavy Oil ◽  
Catalytic Cracking ◽  
Product Distribution ◽  
Pore Distribution ◽  
Oil Yield ◽  
Y Zeolite ◽  
Acidic Properties ◽  
Cracking Performance ◽  
Adsorption Desorption

Five kinds of modified Y zeolite-based fluid catalytic cracking (FCC) catalysts were prepared. The N2 adsorption desorption and NH3 temperature-programmed-desorption (NH3-TPD) were used to investigate the pore structure and acidic properties of the catalysts. The effects of pore structure and acidic properties of catalysts on the catalytic cracking performance of Venezuelan heavy oil were carried out using an advanced cracking evaluation unit. The results of N2 adsorption desorption and NH3-TPD show that CAT-A and CAT-B catalysts with rundle pore distribution have a similar pore sizes and acidSubscript textSubscript textic properties. The catalytic cracking results show that the acidic properties and the pore distribution of the catalysts have obvious effects on the conversion and product distribution. The light oil yield and total liquid oil yield can reach 58.75wt% and 73.83 wt%, respectively, under reaction temperature of 520°C.

Perlite templated Y zeolite assembly and its potential as an efficient catalytic cracking catalyst

2017 ◽  
Vol 243 ◽  
pp. 130-134 ◽  
Author(s):  
Wennian Wang ◽  
Shanshan Kong ◽  
Xiaoxiao Zhou ◽  
Delin Yuan ◽  
Hao Li ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Y Zeolite
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