The article deals with the results of the experiments and studies of nitric acid units in industry and establishes the patterns in NO oxidation under dynamic conditions in a gas phase and on the surface of phase separation considering also packing options.
The technological scheme of reprocessing the systems on the basis of concentrated nitrate acid containing compounds of iodine is presented. The offered scheme allows to reach the degree of utilization that exceeds 99 %. Наведено принципову технологічну схему переробки систем на основі концентрованої нітратної кислоти, яка містить сполуки йоду. Схема, що пропонується, дає змогу досягнути ступеня утилізації, що перевищує 99 %.
The influence of the hydrodynamic cavitation on the absorption quality of water and water solutions of nitric acid as compared to NOx was theoretically justified and experimentally proved. The mechanism of acid formation as a result of this influence was identified. The industrial test at the Severodonetsk Azot Association PJSC was carried out by the irrigation of absorption column of activated water (after using cavitation device). This allowed to intensify the process in the absorption column and lower concentration of NOx from 0.11 to 0.08 % vol.