Serdyukov, S. I. Sizova, I. A. Kniazeva, M. I. Maximov, A. L.
Published in
Petroleum Chemistry
AbstractThe effect of precursor on the properties of nanosized sulfide catalysts prepared by the in situ decomposition of nickel–tungsten compounds is studied. Precursors are nickel-thiotungsten complexes [(Ph)3S]2Ni(WS4)2 in the hydrocarbon feedstock, [BMPip]2Ni(WS4)2 in the hydrocarbon feedstock and ionic liquid, and tungsten hexacarbonyl in the ...
hui, li ming, li makrides, constantinos petrov, alexander kotochigova, svetlana
Universal collisions describe the reaction of molecules and atoms as dominated by long-range interparticle interactions. Here, we calculate the universal inelastic rate coefficients for a large group of ultracold polar molecules in their lower ro-vibrational states colliding with one of their constituent atoms. The rate coefficients are solely dete...
Leivadarou, Evgenia
John S. Latsis Foundation Tima Foundation Minas Kulukundis Trust Muscular Dystrophy Association Hellas Department of Applied Mathematics and Theoretical Physics Queens' college, Cambridge Disability Resource Centre, Cambridge Engineering and Physical Sciences Research Council (EPSRC)
Ovchenkova, E. N. Bichan, N. G. Lomova, T. N.
Published in
Russian Journal of Physical Chemistry A
AbstractThe direction, stoichiometry, and rate of reactions between pyridine/pyrimidine/pyrazine/4-picoline/2′-(pyridin-4-yl)-5′-(pyridin-2-yl)-1′-(pyridin-2-yl)methylpyrrolidinyl[3′,4′:1,2][60]fullerene and (octakis(3,5-di-tert-butylphenoxy)phthalocyaninato) manganese(III) acetate in toluene are studied via chemical thermodynamics/kinetics and spe...
PEGO, MATHEUS F.F. BIANCHI, MARIA LÚCIA CARVALHO, JANAÍNA A. VEIGA, TAIS R.L.A.
Surface modification may lead activated carbon (AC) to take on different properties. This study aimed to promote surface modification of activated carbons using corona treatment (electrical discharge). In this study, powdered commercial activated carbon was used. Activated carbons were subjected to corona treatment at different exposure times (2, 5...
Alekseev, M. V. Kuleshov, A. A. Savenkov, E. B.
Published in
Mathematical Models and Computer Simulations
A self-consistent mathematical model describing the thermomechanical behavior of an elastic medium, which contains voids filled with a chemically active substance, is considered. The behavior of the medium is described by thermomechanical equations. Processes in the pores are described by a lumped model which allows for energy release, chemical rea...
Hunda, Li Averyushkin, A. S. Garelina, S. A. Zakharyan, R. A. Kazaryan, M. A.
Published in
Bulletin of the Lebedev Physics Institute
Based on an analysis of the approximation dependences on the dissociation energy for rate constants of thermal dissociation of two-atomic compounds and three-particle association, constructed by the least-squares method, an analytical expression for their estimation is derived. It is shown that the calculated and approximation dependences of the pu...
Kingston, Diego Razzitte, Adrián César
Published in
Journal of Non-Equilibrium Thermodynamics
Entropy generation minimization is a method that helps improve the efficiency of real processes and devices. In this article, we study the entropy production (due to chemical reactions, heat exchange and friction) in a conventional reactor that synthesizes dimethyl ether and minimize it by modifying different operating variables of the reactor, suc...
Barkman, Patrik
Hybridmodeller konstrueras genom att kombinera modellkomponenter som härleds från grundläggande principer med modelkomponenter som bestäms empiriskt från data. I den här uppsatsen presenteras en metod för att beskriva distribuerade parametersystem genom hybridmodellering. Metoden kombinerar partiella differentialekvationer med ett neuronnätverk för...
Jeong, Jena Ramézani, Hamidréza Chuta, Edgar
In the present contribution, the mathematical modeling and numerical solution of the carbonation phenomenon have been investigated for the porous cement mortars. To achieve this goal, the Papadakis analytical proposal has been fully investigated. The molar concentration variations of the hydrate (CSH and Ca(OH)2 ) and unhydrated products (C2S and C...
