Kinetics of the hydrotreatment of rapeseed oil fatty acid triglycerides under mild conditions

To establish principal regularities of the hydrotreatment of rapeseed oil fatty acid triglycerides (FATs), the kinetics of this process has been studied at temperatures of 300–380°C, contact times of 0.38–0.10 h, and a hydrogen pressure of 1.0 MPa in a flow fixed-bed reactor. The process is performed over nonsulfided nickel catalysts, which are of great practical interest for the production of green diesel. The kinetic scheme of the process with consideration for target products (alkanes) and all oxygen-containing by-products has been proposed. The quantitative estimate, which enables the prediction of the composition of products for other process conditions, has been obtained for the principal paths of the hydrotreatment of rapeseed oil FATs.     

Effect of food intake with a high protein content on the hormone levels of the blood

A study was made of the time course of changes in gastrin, insulin and ACTH concentration in the peripheral blood in the course of the development of a specific dynamic food action. Eighteen normal subjects and 78 patients with peptic ulcer, chronic gastritis and chronic enterocolitis were entered into the study. It was demonstrated that apart from digestion stimulation, food intake acted as the most important factor changing the hormonal level in the body. Studies of the blood level of hormones in the course of food intake in patients allowed the detection of various deviations from normal occurring in hormonal secretion.     

Reconstruction of Charged Hydrogen Surface

The evolution of shape of the surface of equipotentially charged liquid hydrogen film condensed on lower or upper plate of a horizontally placed diode in external electric fields has been studied experimentally under the conditions of total compensation of the applied field by the surface charge. Reconstruction phenomenon — the formation of a solitary wave (soliton) — has been observed in an electric field higher than some critical value for the film covering the lower plate.     

Mass transport and phase transformations in a system of small Mo-W-C particles

Translated from Poroshkovaya Metallurgiya, No. 7(319), pp. 17–22, July, 1989.     

Determination of the Equilibrium Composition of the Product Mixture in the Reaction of Oxidizing Ammonolysis of Methane

Application of the advanced Hook‐Jeeves method for the solution of systems of nonlinear equations has led to determination of the equilibrium composition of the product mixture formed in the reaction of oxidizing ammonolysis of methane (OAM). It is shown that the composition crucially depends on the number of the considered parallel and sequential reactions. It is established that no thermodynamic restrictions exist both for the formation of formic acid in the course of the OAM reaction and for the subsequent conversion of formic acid to hydrogen cyanide.