Results 1 to 10 of about 398,278 (315)

New ways of preparation of high-surface area granulated alumina supports

Chimica Techno Acta
The paper describes the properties of hydroxoaluminocarbonates (dawsonite NH4Al(OH)2CO3, scarbroite Al5(OH)13(CO3)·5H2O) and their application as additives in alumina synthesis.
Yuliya V. Vatutina, Tatyana A. Lakizo, Ksenia A. Nadeina, Vera P. Pakharukova, Alena A. Pochtar, Zoya N. Lashinskaya, Evgeniy Yu. Gerasimov, Pavel P. Dik, Oleg V. Klimov, Aleksandr S. Noskov   +9 more
doaj   +1 more source

Selective Electrochemical Reduction of Nitrogen to Ammonia by Adjusting the Three-Phase Interface

Research, 2019
The electrochemical nitrogen reduction reaction (NRR) provides a sustainable and alternative avenue to the Haber-Bosch process for ammonia (NH3) synthesis.
Haiyan Wang, Yuzhuo Chen, Ruxue Fan, Jiadong Chen, Zhe Wang, Shanjun Mao, Yong Wang   +6 more
doaj   +1 more source

Application of Sonotriboluminescence to Determine Arene Molecules in Hydrocarbons

Molecules, 2023
The sonotriboluminescence of suspensions of terbium(III) and europium(III) sulfates in decane without and in the presence of benzene, toluene and p-xylene was studied.
Adis A. Tukhbatullin, Nadezhda A. Panova, Dim I. Galimov, Bulat M. Gareev, Alina A. Tukhbatullina, Kristina S. Vasilyuk, Glyus L. Sharipov   +6 more
doaj   +1 more source

Enantioselective radical chemistry: a bright future ahead

Beilstein Journal of Organic Chemistry
This perspective is focused on enantioselective free radical reactions. It describes several important catalytic asymmetric strategies applied to enantioselective radical reactions, including chiral Lewis acid catalysis, organocatalysis, photoredox ...
Anna C. Renner, Sagar S. Thorat, Hariharaputhiran Subramanian, Mukund P. Sibi   +3 more
doaj   +1 more source

Highly selective hydrogenation of arenes using nanostructured ruthenium catalysts modified with a carbon–nitrogen matrix

Nature Communications, 2016
The selective reduction of arenes is important in organic synthesis and also valorization of biomass. Here, the authors report the use of ruthenium-based nanoparticles, which display high activity in arene reduction and preferentially hydrogenate ...
Xinjiang Cui, Annette-Enrica Surkus, Kathrin Junge, Christoph Topf, Jörg Radnik, Carsten Kreyenschulte, Matthias Beller   +6 more
doaj   +1 more source

Deactivation and Regeneration of Mo/ZSM-5 Catalysts for Methane Dehydroaromatization

Eurasian Chemico-Technological Journal, 2010
The methane dehydroaromatization (DHA) was studied over a series of impregnated Mo/ZSM-5 catalysts with different molybdenum contents (1-10 wt.%). It was shown that total methane conversion was decreased by 30% during 12 h of DHA reaction.
E. V. Matus, O. B. Sukhova, I. Z. Ismagilov, V. I. Zaikovskii, M. A. Kerzhentsev, Z. R. Ismagilov, K. D. Dosumov, A. G. Mustafin   +7 more
doaj   +1 more source

Influence of feedstock composition on the pressure drop buildup in gas oil hydrotreater

Chimica Techno Acta
In this work two samples of solid particulates obtained from the intergranular space of the guard beds catalyst of industrial gas oil hydrotreating reactors were investigated. The hydrotreating reactors were operated on feedstock of different composition.
Ivan A. Mik, Oleg P. Klenov, Ivan S. Golubev, Pavel P. Dik, Sergey I. Reshetnikov, Aleksandr S. Noskov   +5 more
doaj   +1 more source

Simulation of Steam Reforming Tube with Shaped Particles

Eurasian Chemico-Technological Journal, 2005
Shaped catalysts are widely used in steam reforming. A comprehensive mathematical model able to predict and compare performance of different shaped catalysts is developed.
A. P. Kagyrmanova, N. V. Vernikovskaya, I. A. Zolotarsky, E. I. Smirnov, V. A. Kuzmin   +4 more
doaj   +1 more source

Crystallization of magnesium aluminophosphate molecular sieves MAPO-11 using different aluminum sources and their application in the hydroisomerization of n-hexadecane

Chimica Techno Acta
Magnesium aluminophosphate molecular sieves are promising materials for the development of catalysts for the hydroisomerization of higher n-paraffins in fuels and oils.
Dmitry Serebrennikov, Maxim Vlasov, Olga Travkina, Nadezhda Filippova, Ekaterina Mescheryakova, Rezeda Kuvatova, Denis Sabirov, Marat R. Agliullin   +7 more
doaj   +1 more source

The thermophysical properties of a promising composite adsorbent based on multi-wall carbon nanotubes for heat storage

Materials for Renewable and Sustainable Energy
The use of energy from alternative energy sources as well as the use of waste heat are key elements of an efficient energetics. Adsorption heat storage is a technology that allows solving such problems.
Alexandra Grekova, Svetlana Strelova, Marina Solovyeva, Mikhail Tokarev   +3 more
doaj   +1 more source