Some Methodological Aspects of Studying Chemical Processes in Water Fluid Media
| Autor: | Yu. A. Gordienko, Yu. D. Ivakin, Ekaterina Ponomareva, M. Yu. Sinev |
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| Rok vydání: | 2019 |
| Předmět: |
Chemical process
Materials science 010304 chemical physics Mechanics 010402 general chemistry 01 natural sciences Supercritical fluid 0104 chemical sciences Scientific method Autoclave (industrial) 0103 physical sciences Thermal Heat transfer Physical and Theoretical Chemistry Chemical composition Water vapor |
| Zdroj: | Russian Journal of Physical Chemistry B. 13:1322-1334 |
| ISSN: | 1990-7923 1990-7931 |
| Popis: | Some aspects of the experimental study of processes involving water fluids at temperatures approaching the critical (647 K) and above it in a static mode are considered. Particular attention is paid to the possible occurrence of artifacts and misinterpretations of the results associated with temperature gradients and uncontrolled effects of evaporation-condensation of water. The role of the walls of metal structural elements of the reactor (autoclave) as a catalyst for reactions involving water fluids and heat transfer processes on the measurements of thermal effects is analyzed. It is shown that a thermometric study of the dynamics of gas-phase reactions involving water vapor and supercritical fluid without measuring the pressure in the system and its chemical composition leads to uncertainty of the results and the inability to identify the most important kinetic features and mechanism of the process. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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