نتایج جستجو برای: c2 hydrocarbons
تعداد نتایج: 47007 فیلتر نتایج به سال:
In this work, we developed an interatomic potential for saturated hydrocarbons using the modified embedded-atom method (MEAM), a reactive semi-empirical many-body potential based on density functional theory and pair potentials. We parameterized the potential by fitting to a large experimental and first-principles (FP) database consisting of (1) bond distances, bond angles, and atomization ener...
Ammonia as a fuel offers the potential to avoid carbon emissions, but its combustion is hindered by low reactivity. Here, extinction limits of NH3 and plus reactivity enhancers were measured in counterflow laminar non-premixed flames. A stable NH3-N2 flame was established with an oxygen-enriched oxidizer stream, when blended CH4, C2H6, C3H8, H2. For mixtures, results showed that CH4 has least e...
aim : the aim of the present study was to determine the species and genotypes of cryptosporidium spp. among children with diarrhea by pcr- rflp using the trap-c2 gene. background : cryptosporidium is a globally distributed protozoan parasite and one of the most common causes of infection and diarrhea in humans. patients and methods : four hundred and sixty nine stool samples were collected from...
Provision of sustainable transportation fuels is required for the energetic transition. A new process presented production synthetic sulfur free maritime fuel. This fuel produced by Co-catalyzed Fischer-Tropsch synthesis (FTS) using syngas based on a plasma technology that contains traces O2. Gravimetric experiments and steady state measurements with Co/Pt/Al2O3 catalyst at low temperature FTS ...
Mechanoluminescence (ML, also known as triboluminescence or fractoluminescence) is the emission of light due to the application of mechanical stress to a crystal.1 This light is the result of a dielectric breakdown of the intervening gas and the crystal caused by internal electrification at the fracture plane of a piezoelectric crystal. When ML is induced by such mechanical means as grinding, s...
In this study, we aimed to enhance the catalytic activity of perovskite catalysts and elucidate their behavior in oxidative coupling methane (OCM), using alkali-added LaAlO3 catalysts. We prepared LaAlO3_XY (X = Li, Na, K, Y mol %) applied them OCM reaction. The results showed that catalysts’ activities were promoted compared catalyst. reaction, ethane was first synthesized through dimerization...
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