Mesostructured zeolite Y—high hydrothermal stability and superior FCC catalytic performance

2012 ◽  
Vol 2 (5) ◽  
pp. 987 ◽  
Author(s):  
Javier García-Martínez ◽  
Marvin Johnson ◽  
Julia Valla ◽  
Kunhao Li ◽  
Jackie Y. Ying
Keyword(s):  
Zeolite Y ◽  
Catalytic Performance ◽  
Hydrothermal Stability

Enhanced Catalytic Performance of the FCC Catalyst with an Alumina Matrix Modified by the Zeolite Y Structure-Directing Agent

2019 ◽  
Vol 58 (14) ◽  
pp. 5455-5463
Author(s):  
Mengjie Xie ◽  
Yifang Li ◽  
Ubong Jerome Etim ◽  
He Lou ◽  
Wei Xing ◽  
...  
Keyword(s):  
Zeolite Y ◽  
Catalytic Performance ◽  
Alumina Matrix ◽  
Structure Directing Agent ◽  
Fcc Catalyst

Facile Synthesis of Mesoporous Zeolite Y with Improved Catalytic Performance for Heavy Oil Fluid Catalytic Cracking

2014 ◽  
Vol 53 (8) ◽  
pp. 3406-3411 ◽  
Author(s):  
Junsu Jin ◽  
Chaoyun Peng ◽  
Jiujiang Wang ◽  
Hongtao Liu ◽  
Xionghou Gao ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Catalytic Cracking ◽  
Zeolite Y ◽  
Catalytic Performance ◽  
Fluid Catalytic Cracking ◽  
Mesoporous Zeolite ◽  
Facile Synthesis

Synthesis and catalytic performance of zeolite-Y supported on silicon carbide in n-heptane cracking

2020 ◽  
Vol 608 ◽  
pp. 117866
Author(s):  
Aasif A. Dabbawala ◽  
Balasubramanian V. Vaithilingam ◽  
Hemant Mittal ◽  
Yasser Al Wahedi ◽  
Shaihroz Khan ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Zeolite Y ◽  
Catalytic Performance

Enhanced Hydrothermal Stability and Catalytic Performance of HKUST-1 by Incorporating Carboxyl-Functionalized Attapulgite

2016 ◽  
Vol 8 (25) ◽  
pp. 16457-16464 ◽  
Author(s):  
Bo Yuan ◽  
Xiao-Qian Yin ◽  
Xiao-Qin Liu ◽  
Xing-Yang Li ◽  
Lin-Bing Sun
Keyword(s):  
Catalytic Performance ◽  
Hydrothermal Stability

scholarly journals A reconstruction strategy for the synthesis of Cu-SAPO-34 with excellent NH3-SCR catalytic performance and hydrothermal stability

2020 ◽  
Vol 41 (9) ◽  
pp. 1410-1420
Author(s):  
Lijing Sun ◽  
Miao Yang ◽  
Yi Cao ◽  
Peng Tian ◽  
Pengfei Wu ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Hydrothermal Stability ◽  
Nh3 Scr ◽  
Reconstruction Strategy

Hydrothermal synthesis of high silica zeolite Y using tetraethylammonium hydroxide as a structure-directing agent

2016 ◽  
Vol 52 (86) ◽  
pp. 12765-12768 ◽  
Author(s):  
Dawei He ◽  
Danhua Yuan ◽  
Zhijia Song ◽  
Yansi Tong ◽  
Yaqi Wu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Hydrothermal Synthesis ◽  
Zeolite Y ◽  
Hydrothermal Stability ◽  
Structure Directing Agent ◽  
Tetraethylammonium Hydroxide ◽  
High Silica

Zeolite Y with a SiO2/Al2O3 ratio of 7.76 and outstanding thermal stability and hydrothermal stability is synthesized using TEAOH as an SDA.

scholarly journals Improving the hydrothermal stability of zeolite Y by La3+ cation exchange as a catalyst for the aqueous-phase hydrogenation of levulinic acid

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5568-5579
Author(s):  
Hue-Tong Vu ◽  
Michael Goepel ◽  
Roger Gläser
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Cation Exchange ◽  
Aqueous Phase ◽  
Levulinic Acid ◽  
Zeolite Y ◽  
Hydrothermal Stability

La3+ cation exchange is shown to improve the hydrothermal stability and catalytic activity of bifunctional zeolite Pt/Y catalysts in the aqueous-phase hydrogenation of levulinic acid (LA) with formic acid (FA) as hydrogen source.

scholarly journals Hydrochloric Acid and/or Sodium Hydroxide-modified Zeolite Y for Catalytic Hydrotreating of α-Cellulose Bio-Oil

2020 ◽  
Author(s):  
Jason Mandela ◽  
Wega Trisunaryanti ◽  
Triyono Triyono ◽  
Mamoru Koketsu ◽  
Dyah Ayu Fatmawati
Keyword(s):  
Pore Diameter ◽  
Zeolite Y ◽  
Weight Ratio ◽  
Textural Properties ◽  
Catalytic Performance ◽  
Average Pore Diameter ◽  
Average Pore ◽  
Bio Oil ◽  
Liquid Products ◽  
Naoh Treatment

The zeolite Y had been successfully modified by HCl and/or NaOH treatment. The modification of zeolite Y was performed by leaching the protonated zeolite Y (HY) in HCl solution (0.1 and 0.5 M) at 70 °C for 3 h resulting in DY0.1 and DY0.5. Subsequently, HY, DY0.1, and DY0.5 zeolites were immersed in 0.1 M NaOH for 15 min at room temperature resulting in AHY, ADY0.1, and ADY0.5. All samples were analyzed for acidity, crystallinity, Si/Al ratio, morphology, and textural properties. The catalytic performance of all samples was investigated in hydrotreating of α-cellulose bio-oil with a catalyst/feed weight ratio of 1/30. The HCl and NaOH treatment led to the decrease of the zeolite Y crystallinity and the increase of the zeolite Y average pore diameter (i.e., the mesopore distribution). The ADY0.5 gave the highest mesopore distribution, which was 43.7%, with an average pore diameter of 4.59 nm. Moreover, both of the treatments were found to increase the Si/Al ratio that caused the decrease of zeolites Y acidity. All the zeolite Y samples gave better catalytic activity to produce liquid products after being treated by NaOH. The sample ADY0.5 managed to produce 6.12% of 1-isopropyl-2,4-dimethylbenzene that has good potential to be processed into fuel.

Sign in / Sign up

Export Citation Format

Share Document