Anikeev, Vladimir Ilich. CHEMICAL REACTIONS IN SUPERCRITICAL FLUIDS FOR ENVIRONMENTAL TECHNOLOGIES
Vladimir Ilich Anikeev, Lavrentieva, 5 Novosibirsk, 630090, Russia (anik@catalysis.nsk.su)
Chemical reactions in supercritical fluids are considered as good candidates for creation of new technologies in environmental control. The new experimental technique for research of kinetic and thermodynamics of chemical reactions in supercritical liquids - solvents is offered in this report. Kinetic and mechanism of 1,2-propanols dehydration reactions in SCW in the batch reactor are investigated. It was shown that the rate of reaction depends considerably from the SCW density. In the result of experimental researches of hydration and hydrogenation reactions of the main products of 2-propanol dehydration reaction, the basic mechanism of 2-propanol dehydration reaction in supercritical water is offered. It was shown that CSW density can be used as parameter for control of kinetics and selectivity of chemical reaction. Studies on thermodynamics in supercritical fluids are presented. Phase equilibrium and critical phenomena in the systems, which have practical meaning for chemical technologies processes, in undercritical and supercritical conditions are considered.