Oxidation of sulfur compounds. II. Thermal reactions of NO/sub 2/ with aliphatic sulfur compounds
A preliminary study on the reaction of NO/sub 2/ and CH/sub 3/SH was found to yield CH/sub 3/SNO as an intermediate and (CH/sub 3/S)/sub 2/ as a final product. The results of the study of the reaction of NO/sub 2/ with CH/sub 3/SH over a wider pressure range are reported. Additionally, the reactions of NO/sub 2/ with CH/sub 3/SNO, (CH/sub 3/S)/sub 2/, and (CH/sub 3/)/sub 2/S have been studied. In all cases reaction proceeded readily and NO was evolved. Large excesses of NO did not react with the sulfur-containing compounds.
This paper proposes a hybrid metaheuristic approach that improves global numerical optimization by increasing optimal quality and accelerating convergence. This algorithm involves a recently developed process for chemical reaction optimization and two adjustment operators (turning and mutation operators). Three types of mutation operators (uniform, nonuniform, and polynomial) were combined with chemical reaction optimization and turning operator to find the most appropriate framework. The best solution among these three options was selected to be a hybrid mutation chemical reaction optimization algorithm for global numerical optimization. The optimal quality, convergence speed, and statistical hypothesis testing of our algorithm are superior to those previous high performance algorithms such as RCCRO, HP-CRO2, and OCRO.