quinhydrone

The enhancement factor of air oxygen absorption by quinhydrone absorbing solution in the apparatus with a continuous bubbling layer and the rate constant for the reaction of chemisorbed oxygen and the reducing form of quinhydrone oligomers have been determined. The obtained results are of practical importance for the choice of mass-transfer apparatus for the regeneration of quinhydrone absorbing solution when removing hydrogen sulfide from gases.

In the quinhydrone method of gases purification from hydrogen sulfide as an oxidizer of chemosorbed hydrogen sulfide, a quinhydrone catalyst is used. It is obtained by oligomerization of benzoquinhydrone in an alkaline solution. The oxidation-reducing properties of the quinhydrone catalyst are very important for the process of gases purification from hydrogen sulfide.