scholarly journals Catalytic Hydrocracking of Fresh and Waste Frying Oil over Ni- and Mo-Based Catalysts Supported on Sulfated Silica for Biogasoline Production

Catalysts ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1150
Author(s):  
Karna Wijaya ◽  
Asma Nadia ◽  
Arina Dinana ◽  
Amalia Febia Pratiwi ◽  
Alfrets Daniel Tikoalu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sol Gel ◽  
Liquid Product ◽  
Gasoline Fraction ◽  
Frying Oil ◽  
Waste Frying Oil ◽  
Sio2 Matrix ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sulfated Silica

The synthesis of a sulfated silica catalyst and its modification with Ni and/or Mo metal, along with its application for the hydrocracking of fresh and waste frying oil into biogasoline, were conducted. Synthesis of the catalysts was initiated with the sulfation of silica (SiO2) material by H2SO4 using the sol-gel method. Ni and/or Mo metal were impregnated into the SO4/SiO2 matrix with concentration variations of 1, 2, and 3 wt%. The sulfation process and promotion by Molybdenum (Mo) metal in the modified catalyst successfully increased the catalytic activity and selectivity. Among the catalysts investigated, Ni-SS2 exhibited the best performance for the hydrocracking reaction with waste frying oil. This catalyst was able to achieve a conversion of the liquid product of 71.47% and a selectivity of 58.73% for the gasoline fraction (C5-C12). NiMo-SS3 showed the highest percentage of activity and selectivity in the hydrocracking of fresh frying oil at 51.50 and 43.22 wt%, respectively.

Insights into the role of strontium in toluene catalytic combustion over La1-xSrxCoO3 perovskites catalysts

2022 ◽  
Author(s):  
Mo Liu ◽  
Xiaoli Yang ◽  
ZiMeng Tian ◽  
Huimin Wang ◽  
Liangtao Yin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Catalytic Combustion ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
A Site

A series of LaCoO3 pervoskite catalysts substituted by Sr in A site (La1-xSrxCoO3) were prepared via a facile sol-gel method. The catalytic activity of these pervoskite catalysts for the deep...

BiOCl/TiO2 composite photocatalysts synthesized by the sol–gel method for enhanced visible-light catalytic activity toward methyl orange

2020 ◽  
Vol 35 (22) ◽  
pp. 3067-3078
Author(s):  
Xiaofei Qu ◽  
Xiaohui Zhao ◽  
Meihua Liu ◽  
Zhaoqun Gao ◽  
Donglin Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Composite Photocatalysts

Abstract

Controlled synthesis and enhanced photoelectro-catalytic activity of a 3D TiO2 nanotube array/TiO2 nanoparticle heterojunction using a combined dielectrophoresis/sol–gel method

2019 ◽  
Vol 7 (17) ◽  
pp. 4981-4987 ◽  
Author(s):  
Ruiyu Bao ◽  
Chen Chen ◽  
Jianxin Xia ◽  
Huiying Chen ◽  
Hua Li
Keyword(s):  
Particle Size ◽  
Catalytic Activity ◽  
Surface Morphology ◽  
Sol Gel ◽  
Tio2 Nanoparticle ◽  
Controlled Synthesis ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Gel Method ◽  
Sol Gel Method

The surface morphology and particle size of materials can be controlled using DEP technology.

Characterization of sulfated TiO2 prepared by the sol–gel method and its catalytic activity in the n-hexane isomerization reaction

2005 ◽  
Vol 225 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Lúcia K. Noda ◽  
Rusiene M. de Almeida ◽  
Luiz Fernando D. Probst ◽  
Norberto S. Gonçalves
Keyword(s):  
Catalytic Activity ◽  
Sol Gel ◽  
Isomerization Reaction ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sulfated Tio2

Study of the effect of formamide and N,N-dimethylformamide on the synthesis of CdS nanoparticles in a SiO2 matrix by sol-gel method

1999 ◽  
Vol 1 (6) ◽  
pp. 351-364 ◽  
Author(s):  
F.J. Guaita ◽  
E. Cordoncillo ◽  
H. Beltrán ◽  
P. Escribano ◽  
J.M. Gonzalez Calbet
Keyword(s):  
Sol Gel ◽  
Cds Nanoparticles ◽  
Sio2 Matrix ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Study of absorption, emission and EDS properties of Pr3+ incorporated in a SiO2 matrix by sol-gel method

2015 ◽  
Vol 582 ◽  
pp. 012039 ◽  
Author(s):  
M Gómez-Miranda ◽  
C Velásquez Ordoñez ◽  
R Sosa Fonseca
Keyword(s):  
Sol Gel ◽  
Sio2 Matrix ◽  
Gel Method ◽  
Sol Gel Method

Nanometer SrTiO3-Supported Ni-Based Catalyst in the Reaction of CO2 Reforming CH4 to Syngas

2010 ◽  
Vol 105-106 ◽  
pp. 819-822
Author(s):  
Chun Feng Wang ◽  
Hua Zhi Gu ◽  
Hao Chen
Keyword(s):  
Catalytic Activity ◽  
Sol Gel ◽  
Impregnation Method ◽  
Co2 Reforming ◽  
Gel Method ◽  
Sol Gel Method ◽  
Citrate Process ◽  
Lower Temperature ◽  
Supported Ni ◽  
Xrd And Tem

Superfine nanometer SrTiO3 with size of near 50-60nm was prepared by citrate process and sol-gel method. XRD and TEM characterizations indicate that sol-gel method is appropriate to prepare high-purity powders at far lower temperature than other methods. The Ni-based catalysts were prepared by using SrTiO3 powder as support through impregnation and sol-gel method. These catalysts were applied to the reaction of CO2 reforming CH4 to synas and showed high activity. The catalytic activity of Ni-based catalyst is investigated by reaction temperature, the method of support preparation, and the method of catalyst preparation; It shows that the catalyst possesses higher catalytic activity with the increasing of temperature; and the catalytic rate is near 90% at 973 K; and the catalyst show higher catalytic activity when support is prepared by sol-gel method than by citrate process; and the catalyst shows better catalytic activity when catalyst is prepared by sol-gel method than by impregnation method.

Active LaNi1−xFexO3 bifunctional catalysts for air cathodes in alkaline media

2015 ◽  
Vol 3 (18) ◽  
pp. 9421-9426 ◽  
Author(s):  
Daiwei Zhang ◽  
Yufeng Song ◽  
Zhenzhen Du ◽  
Long Wang ◽  
Yutao Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Valence State ◽  
Low Cost ◽  
Sol Gel ◽  
Alkaline Media ◽  
Bifunctional Catalysts ◽  
Iron Doping ◽  
Air Cathode ◽  
Gel Method ◽  
Sol Gel Method

Iron doping in LaNi1−xFexO3 (x = 0, 0.1, 0.2) synthesized by a sol–gel method increases the valence state of the surface Ni and, thereby, the catalytic activity for both the ORR and OER in 0.1 M KOH electrolyte. The Fe-doped LaNiO3 offers a low-cost electrocatalyst for an air cathode in metal–air batteries.

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