Results 91 to 100 of about 4,569 (225)

Hydrodesulfurization NiMo Catalysts over Mechanochemically Prepared Gamma-Alumina.

, 2018
The aim of the present work is to explore optimum preparation route of NiMo catalysts for the novel mechanochemically prepared Al2O3 in order to achieve high HDS activity. Specifically, the goals are: i) to up-scale the support synthesis to provide sufficient amount ofAl2O3, ii) to deposit NiMo from solutions of highly soluble precursors by ...
Kaluža, L. (Luděk), Jirátová, K. (Květa), Tyuliev, G., Palcheva, R., Koštejn, M. (Martin), Spojakina, A.   +5 more
openaire   +3 more sources

Degradation of glycerol to ethanol using x/Y zeolite (x=H, Ni, Mo, NiMo) catalyst by sonication method

Journal of the Turkish Chemical Society, Section A: Chemistry
The performance of the Y Zeolite (YZ) catalyst can be improved by metal impregnation. The purposes of this study were to determine the characteristics and effectenes of the H/YZ, Ni/YZ, Mo/YZ, and NiMo/YZ catalyst, and the effect of the time of ...
Muhammad Roy Asrori, Nazriati Nazriati, Aman Santoso, Siti Khoirun Nisak, Sumari Sumari   +4 more
doaj  

Catalytic hydrogenation of straight vegetable oil using NiMo/ Al2O3 catalyst for biodiesel production

E3S Web of Conferences, 2018
The attractiveness of biodiesel as an alternative fuel compared to fossil fuels because it has many advantages such as the availability of abundant raw materials, more environmentally friendly, high combustion efficiency, low sulphur content, high cetane
Sumbogo Murti SD, Prasetyo J., Murti G.W., Hastuti Z. D., Yanti F. M.   +4 more
doaj   +1 more source

Upgrade of the ultracold neutron source at the pulsed reactor TRIGA Mainz

, 2017
The performance of the upgraded solid deuterium ultracold neutron source at the pulsed reactor TRIGA Mainz is described. The current configuration stage comprises the installation of a He liquefier to run UCN experiments over long-term periods, the use ...
Beck, Marcus, Geppert, Christopher, Heil, Werner, Hild, Nicolas, Kahlenberg, Jan, Karch, Jan, Karpuk, Sergei, Kories, Fabian, Kretschmer, Matthias, Lauss, Bernhard, Reich, Tobias, Ries, Dieter, Ross, Kim Ulrike, Siemensen, Christian, Sobolev, Yuri, Trautmann, Norbert   +15 more
core   +1 more source

Processing of spent NiW/Al2O3 catalysts [PDF]

, 2013
Spent oxidized (500 ºC, 5 h) commercial NiW/Al2O3 catalysts were processed using two different routes: a) fusion with NaOH (650 ºC, 1 h), the roasted mass was leached in water; b) leaching with HCl or H2SO4 (70 ºC, 1-3 h). HCl was the best leachant.
AFONSO, Julio Carlos, CUNHA, José Waldemar Silva Dias da, PAULINO, Jéssica Frontino   +2 more
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Sythesis of bioavture through hydrodeoxygenation and catalytic cracking from oleic acid using NiMo/Zeolit catalyst

E3S Web of Conferences, 2018
Currently, fossil fuels are still the primary source of fuel. As has been known, fossil fuel especially aviation fuel is limited resources and can increase greenhouse gas emissions.
Carli Michelle Flavin, Susanto Bambang Heru, Habibie Thareq Kemal   +2 more
doaj   +1 more source

Understanding catalyst deactivation in an industrial green hydrotreater and its correlation with catalyst composition

Fuel Processing Technology
Understanding and mitigating catalyst deactivation is crucial for enhancing the efficiency of hydrodeoxygenation (HDO) processes in the production of biofuels.
Elham Nejadmoghadam, Abdenour Achour, Olov Öhrman, Derek Creaser, Louise Olsson   +4 more
doaj   +1 more source

Crude oil and refinery streams desulphurization using slurry dispersed catalysts and ionic liquids

, 2011
Petroleum refining is among the most important industries in the world. The oil refinery products contribute in many essential issues in the human life including transportation fuels, heating fuels, petrochemical industries, etc. Although oil refining is
Al-Sayed, Essam, Al-Sayed, Essam
core   +1 more source

Dual metal NiMo dispersed on silica derived from rice husk ash as a catalyst for hydrocracking of used palm cooking oil into liquid biofuels

Communications in Science and Technology
The production of vegetable-based fuels has intensified in recent years due to the decreasing availability of fossil fuels and their environmental impacts.
Karna Wijaya, Risandrika Dwijayanti Putri Setyono, Remi Ayu Pratika, Eddy Heraldy, Ahmad Suseno, Lukman Hakim, Iqmal Tahir, Won-Chun Oh, Aldino Javier Saviola   +8 more
doaj   +1 more source

Hydrodesulphurization of dibenzothiophene using carbon supported NiMoS catalysts

, 2016
Hydrodesulphurization (HDS) is the major process used to remove S from crude oil feedstocks in order to improve fuel quality and meet environmental regulations. The goal of this study was to determine if petroleum coke (petcoke), derived from Alberta oilsands, could be converted into a useful catalyst support.
openaire   +1 more source