Kinetics of carbon dioxide absorption and C-C bond formation in media containing trifluoroacetic acid.

As a rule, sources of air pollution are industrial enterprises and technological devices. Due to the deterioration of the environmental condition of atmosphere, experts actively develop effective ways of purification the waste gases of petroleum industry devices from the most common toxic components, one of which is carbon dioxide. The disadvantages of the 'reagent' methods used are the formation of sludge, the complexity of technological schemes and the significant consumption of expensive reagents. Currently, catalytic technologies are playing an increasing role in the processes of purification of gas emissions in the world. The oxidation methods based on the use of an environmentally friendly oxidizer molecular oxygen are the most promising. The main difficulty is activation of O₂, since it is not very reactive under standard conditions. The chemical interaction of oxygen, whose electronic state is triplet, with most inorganic and organic molecules in the basic singlet state is extremely slow due to the spin ban (the Pauli principle) [1]. For this reason, catalytic oxidation reactions using oxygen as an oxidizing agent are usually carried out on heterogeneous phase boundaries at sufficiently high temperatures, when either dissociative adsorption occurs with the formation of reactive monoxygen radicals (O*, HO*), or the catalyst's structural oxygen, which is sufficiently mobile, participates in oxidation by a step-by-step mechanism [2]. [ABSTRACT FROM AUTHOR]