Explore the vast range of titles available.

Very fast reactions of forming higher nitrogen oxides set out an equilibrium framework for the course of the reaction of nitrogen monoxide oxidation. The slow course of reaction of nitrogen monoxide with oxygen permanently violates the created equilibria. In particular, the equilibrium of the oxidation reaction of nitrogen monoxide with nitrogen dioxide. The contribution of this reaction to the transformation of nitrogen monoxide in the conditions of nitrogen trioxide removal from the gas phase was estimated.

Preparation methods of calcium sulphate and urea adduct The paper presents the results of laboratory studies on the preparation of calcium sulphate and urea adduct by: grinding, compacting and mixing in the presence of physical water. A method for the measurement of urea conversion into the adduct form, which is based on the difference in solubility of free urea and the adduct bound urea CaSO[4]·4CO(NH[2])[2] in n-butanol, was developed. Mixing the reagents in the presence of physical water produced the best results. High urea conversion into the adduct form, over 85%, in the prepared samples indicates that this method can be successfully used to get CaSO[4]·4CO(NH[2])[2] adduct.

The attempt of quantitative description of suspension viscosity with regard to concentration of dispersed phase particles as well as particle (porous) — liquid phase interaction has been presented. Calculated apparent viscosity coefficients have been compared with measured viscosities of oil-coal suspension.

Modelling of the gas combustion process This paper reports on a procedure which leads to the assessment of the K[G] values without the need of determining the maximal rate of pressure rise by experiments. A simulation is proposed of the combustion process in its simplest form, i.e. one-dimensional propagation of the flame. Such simulation enables the burning velocity S[u] to be assessed. Knowing the S[u] values for different compositions of the flammable mixture makes it possible to determine the S[u, max] value. Once the correlation between S[u,max] and K[G] has been established, this will enable us to assign an appropriate value of K[G] to that of the maximal burning velocity. An example of such a correlation is given. It refers to flammable mixtures of a comparatively low burning velocity.