Thermal conductivity of liquids and liquid mixtures has been a subject of active and considerable interest because of its technological applications as well as for providing an insight into the various molecular processes. Similarly, a study of thermal conductivity of liquids and liquid mixtures, at varying temperature and pressure, is of significance due to its applicability in process design,...

Dimethyl ether (DME) is a versatile raw material and an interesting alternative fuel that can be produced by the catalytic direct hydrogenation of CO2. Recently, this process has attracted attention industry due to environmental benefits CO2 elimination from atmosphere its lower operating costs with respect classical, two-step synthesis DME syngas (CO + H2). However, kinetics thermodynamic limi...

Core-shell-type catalysts, which are synthesized by encapsulating the Cu-ZnO-Alumina type methanol synthesis catalyst (CZA) silicotungstic acid (STA)-incorporated mesoporous alumina, were prepared following a hydrothermal route and tested in DME from syngas CO2. Activity tests, performed pressure range of 30–50 bar, temperature 200–300 °C, with different feed compositions (CO2/CO/H2: 50/-/50, 4...

External flavone aglycones in the overground parts of Veronica chamaedrys L. (Scrophulariaceae) have been analysed by isocratic reversed-phase high performance liquid chromatography. Luteolin, apigenin, luteolin-3'-methyl ether and scuterallein-6,4'-dimethyl ether have been identified. The latter compound is a new flavonoid identified in Veronica genus.