Effect of Methanol on Catalytic Performance of HY Zeolite for Desulfurization of FCC Gasoline by Alkylation

2012 ◽  
Vol 51 (18) ◽  
pp. 6320-6326 ◽  
Author(s):  
Rong Wang ◽  
Yonghong Li ◽  
Benshuai Guo ◽  
Hongwei Sun
Keyword(s):  
Catalytic Performance ◽  
Hy Zeolite ◽  
Fcc Gasoline

Catalytic performance of silicalite-1 modified HY zeolite in the hydrolysis of cellulose

2018 ◽  
Vol 46 (12) ◽  
pp. 1447-1453
Author(s):  
Jie YU ◽  
Jing-yun WANG ◽  
Zhen WANG ◽  
Ming-dong ZHOU ◽  
Hai-yan WANG
Keyword(s):  
Catalytic Performance ◽  
Hy Zeolite ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of

Hybrid Catalysts: Internal or External Configuration for Better Catalytic Performance?

1997 ◽  
Vol 497 ◽  
Author(s):  
R. Le Van Mao ◽  
M. A. Saberi ◽  
J. A. Lavigne ◽  
S. Xiao ◽  
G. Denes
Keyword(s):  
High Temperatures ◽  
Catalytic Performance ◽  
Product Diffusion ◽  
Outward Diffusion ◽  
Hy Zeolite ◽  
Hybrid Catalysts ◽  
Diffusion Rates ◽  
Hybrid Configuration ◽  
Direct Incorporation ◽  
Isomer Selectivity

ABSTRACTHybrid catalysts with the external configuration for the cocatalyst showed enhanced product diffusion rates in the n-octane hydrocracking, only if the reaction was carried out at relatively high temperatures. In the n-heptane isomerization, direct incorporation of the Al species into the HY zeolite micropores produced sorption sites which positively affected the selectivity to liquid isomers. Such as internal hybrid configuration resulted in a more important increase in the liquid isomer selectivity than that given by the external hybrid configuration, both systems being designed for better product outward-diffusion.

Study on Olefin Alkylation of Thiophenic Sulfur in FCC Gasoline Using La2O3-Modified HY Zeolite

2008 ◽  
Vol 127 (1-2) ◽  
pp. 70-74 ◽  
Author(s):  
Xue-dong Zheng ◽  
Hong-jun Dong ◽  
Xin Wang ◽  
Li Shi
Keyword(s):  
Hy Zeolite ◽  
Fcc Gasoline

An efficient Fe2O3/HY catalyst for Friedel–Crafts acylation of m-xylene with benzoyl chloride

RSC Advances ◽  
2014 ◽  
Vol 4 (70) ◽  
pp. 36951-36958 ◽  
Author(s):  
Manman Mu ◽  
Ligong Chen ◽  
Yunlong Liu ◽  
Wangwang Fang ◽  
Yang Li
Keyword(s):  
Catalytic Activity ◽  
Iron Oxide ◽  
Benzoyl Chloride ◽  
Catalytic Performance ◽  
Reaction Parameters ◽  
Hy Zeolite ◽  
Lewis Acidic Sites ◽  
Acidic Sites ◽  
Excellent Catalytic Performance

Iron oxide supported on HY zeolite was prepared and exhibited excellent catalytic performance in the acylation of m-xylene with benzoyl chloride. It was characterized by XRD, BET, XPS, NH3-TPD and Py-IR. The catalytic activity of Fe2O3/HY is enhanced with the increase of Lewis acidic sites. Furthermore, the reaction parameters were optimized. Finally, the catalyst was easily separated reused for five runs without appreciable loss of catalytic activity.

Catalytic performance and sulfidation behaviors of CoMo/Beta-MCM-48 catalysts prepared with citric acid for FCC gasoline hydroupgrading

2014 ◽  
Vol 22 (1) ◽  
pp. 127-135 ◽  
Author(s):  
Dinghong Qi ◽  
Aijun Duan ◽  
Zhen Zhao ◽  
Huadong Wu ◽  
Huili Fan ◽  
...  
Keyword(s):  
Citric Acid ◽  
Catalytic Performance ◽  
Fcc Gasoline

A Comparison of the H3PW12O40/MCM-41 and HY Zeolite for Alkenylation of p-Xylene with Phenylacetylene

2013 ◽  
Vol 634-638 ◽  
pp. 377-381 ◽  
Author(s):  
Zhong Kui Zhao ◽  
Yi Tao Dai
Keyword(s):  
Flow Reactor ◽  
Fixed Bed ◽  
Catalytic Performance ◽  
Hy Zeolite ◽  
Ultrasonic Assisted ◽  
Acidic Sites ◽  
High Dispersity ◽  
Catalytic Stability ◽  
Temperature Programmed ◽  
Mcm 41

The initial activity, selectivity, and especially catalytic stability of mesoporous MCM-41 supported phosphotungstic acid (HPW) prepared by ultrasonic-assisted impregnation (UAI) method and the HY zeolite were contrastively investigated for alkenylation of p-xylene with phenylacetylene in a fixed-bed continuous flow reactor. N2 adsorption-desorption, FT-IR, X-ray diffraction (XRD) and NH3 temperature-programmed (NH3-TPD) desorption characterization techniques were employed to explore the relationship of catalyst nature and catalytic performance in alkenylation. Results illustrate that the as-prepared HPW/MCM-41 catalyst exhibits notably superior catalytic activity, selectivity and stability to microporous HY zeolite, ascribed to its well-ordered mesoporous architecture, appropriate acidic sites and high dispersity of HPW phase.

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