Results 91 to 100 of about 8,577 (208)

Characterization and hydrodesulfurization activity of CoMo catalysts supported on sol-gel prepared Al2O3 [PDF]

, 2005
A series of CoMo/Al2O3 catalysts was prepared by impregnation on a series of alumina powders synthesized by the sol-gel method with different hydrolysis ratios R (defined as [H2O] / [aluminum-tri-sec-butoxide (ASB)]; R = 3, 4, ..., 12, 13).
Dumeignil, Franck, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Sato, Koichi, Shimada, Hiromichi   +5 more
core   +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  

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

Influence of nitrogen-containing components on the hydrodesulfurization of 4,6-dimethyldibenzothiophene over Pt, Pd, and Pt-Pd on alumina catalysts [PDF]

, 2018
Pyridine and piperidine inhibited the hydrodesulfurization of 4,6-dimethyldibenzothiophene (4,6-DM-DBT) over alumina-supported Pt, Pd, and Pt-Pd catalysts.
Niquille-Röthlisberger, Adeline, Prins, Roel   +1 more
core  

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

Hydropurification and Hydroisomerisation of Butyl-Mercaptan-Alkane Mixes and Diesel Oil Fractions on Alumo-Iron-Molybdenum Catalysts

Eurasian Chemico-Technological Journal, 2001
Modified alumina-iron-molybdenum (AIM) catalysts have been studied in hydropurification and hydroisomerization both of butylmercaptan-alkane mixture and diesel oil fractions. It has been shown that the modification of alumina-iron-molybdenum catalysts by
G. D. Zakumbaeva, B. Tuktin, A. D. Gazizova   +2 more
doaj   +1 more source

Alkoxide complexes of rhenium, niobium and tantalum [PDF]

, 2009
This thesis describes two major methods for preparation of new mono-, bi- and trimetallic complexes on the basis of Rhenium, Niobium and Tantalum: (1) - the electrochemical method for the synthesis of Re4O4(OEt)12 and (2) - the interaction of Rhenium ...
Nikonova, Olesya A.
core  

Hydrodesulfurization of Fuel Oil

Journal of the Fuel Society of Japan, 1970
The hydrodesulfurization of fuel oil was reviewed. The minor component in fuel oil was tabulated. The engineering problems on the hydrodesulfurization was discussed, especially, work performed in a fluidized bed, socalled “H-Oil Process” was explained in detail.
openaire   +2 more sources

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

Highly Active Low Cobalt Content-Based Bulk MoS2 Hydrodesulfurization Catalysts with a Unique Impact of H2S

Journal of Chemistry, 2018
A series of unsupported MoS2, Co9S8, and Co-promoted MoS2 catalysts have been synthesized by tuned impregnation and successive thermal annealing methods using a continuous flow of a mixture of H2 and H2S gases.
Hamdy Farag, Abd-Alrahman Embaby, Masahiro Kishida, Abdel-Nasser A. El-Hendawy, Mohamed Mahmoud Nasef   +4 more
doaj   +1 more source