Results 61 to 70 of about 1,012 (184)

Role of ZrO₂ and Porosity Induced by Activated Carbon and Starch Templates in NiMo/Al₂O₃-ZrO₂ Catalysts for Naphthalene Hydrogenation and 4,6-Dimethyldibenzothiophene Hydrodesulfurization

Inorganics
The influence of zirconia incorporation and template type on the physicochemical properties of NiMo/Al2O3-ZrO2 catalysts was investigated for the hydrodesulfurization (HDS) of 4,6-dimethyldibenzothiophene (4,6-DMDBT) and the hydrogenation (HYD) of ...
Esneyder Puello Polo, Elíseo Díaz Varela, Carlos A. T. Toloza   +2 more
doaj   +1 more source

Mesoporous CoMo bulk catalysts derived from pomelo mesocarp for efficient thiophene hydrodesulfurization [PDF]

Biofuel Research Journal
The bio-templating approach offers a promising route for preparing highly efficient bulk hydrodesulfurization (HDS) catalysts, due to its simplicity, sustainability, and cost-effectiveness.
Wenjing Song, Fanfang Meng, Mengyu Hu, Longzhou Ren, Fuhui Yang, Qinqin Zhang, Liancheng Bing, Fang Wang, Guangjian Wang, Dezhi Han   +9 more
doaj   +1 more source

Modulating the Coordination-Environment of Y Zeolite Through In-situ Tin to Enhance Ultra-Deep Hydrodesulfurization of Diesel Over NiW Catalyst

Engineered Science
Herein, HSnY zeolites were synthesized through in-situ modification and employed as NiW catalyst supports for ultra-deep hydrodesulfurization (HDS) of model diesel.
Huabing Zhang, Lei Li, Jun Zhu, Zhongyao Xia, Houxiang Sun, Haiyan Yang, Zhiqiang Jiang, Tao Yang, Yani Liu, Xingwen Zheng, Wenwu Zhou   +10 more
doaj   +1 more source

Hydrodesulfurization of coal tar pitch using Pt/Al2O3 and Pd/Al2O3 catalysts under mild conditions

Carbon Resources Conversion, 2019
Hydrodesulfurization (HDS) of coal tar pitch (CTP) using Pt/Al2O3 and Pd/Al2O3 catalysts in tetrahydrofuran at 333 K and atmospheric pressure was investigated.
Kazumasa Yazu, Atul Sharma
doaj   +1 more source

The surface properties of aluminated meso–macroporous silica and its catalytic performance as hydrodesulfurization catalyst support

Petroleum Science, 2017
Aluminated mesoporous silica was prepared by multiple post-grafting of alumina onto uniform mesoporous SiO2, which was assembled from monodisperse SiO2 microspheres.
Zhi-Gang Wang, Jia-Ning Pei, Sheng-Li Chen, Zheng Zhou, Gui-Mei Yuan, Zhi-Qing Wang, Guo-Qiang Ren, Hong-Jun Jiang   +7 more
doaj   +1 more source

Kinetics of Hydrodesulfurization of Dibenzothiophene on Sulfided Commercial Co-Mo/γ-Al2O3 Catalyst

The Journal of Engineering Research, 2006
Kinetics of hydrodesulfurization of dibenzothiophene (DBT) has been studied on a commercial CoMo/γ-Al2O3 catalyst at 633 - 683 K and 10 atm. A low DBT concentration typically obtained in hydrodesulfurization operations was used.
Y.S. Al-Zeghayer, B.Y. Jibril
doaj   +1 more source

The Study of Biological Technologies for the Removal of Sulfur Compounds [PDF]

Journal of Sciences, Islamic Republic of Iran, 2017
Combustion of sulfur components of fossil fuels such as oil causes the emission of SO2 in the atmosphere and lead to the formation of acidic rain in the environment.
F. Nazari, ME. Kefayati, J. Raheb
doaj  

In situ observations of an active MoS2 model hydrodesulfurization catalyst

Nature Communications, 2019
Although hydrodesulfurization is a key process in the chemical industry, a deep understanding of the catalyst structure under real reaction conditions is lacking.
Rik V. Mom, Jaap N. Louwen, Joost W. M. Frenken, Irene M. N. Groot   +3 more
doaj   +1 more source

Visualizing hydrogen-induced reshaping and edge activation in MoS2 and Co-promoted MoS2 catalyst clusters

Nature Communications, 2018
Rational design of a hydrodesulfurization catalyst relies on a fundamental understanding of its working principles. Here, the authors use scanning tunneling microscopy to directly visualize and quantify hydrogen-induced reshaping and edge activation in ...
Signe S. Grønborg, Norberto Salazar, Albert Bruix, Jonathan Rodríguez-Fernández, Sean D. Thomsen, Bjørk Hammer, Jeppe V. Lauritsen   +6 more
doaj   +1 more source

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al2O3-TiO2

Materials Research Express
In this study, we prepared Al _2 O _3 -TiO _2 (AT) mixed oxides to synthesize NiW catalysts for sulfur removal reactions. The AT support samples were prepared with various surfactants.
M A Guzmán-Cruz, J G Pacheco-Sosa, L Morales de la Garza, A I Gochi Bautista, J A Medina-Cervantes, E D Gutiérrez-López, S Fuentes-Moyado, J N Díaz de León   +7 more
doaj   +1 more source