Oxidative desulphurisation using cavitation and complimentary techniques

New results are presented on oxidizing single ring thiophenes in a model fuel with only water over an extended range of volume fraction of organic phase from 2.5 to 80 v/v % in HC systems. The influence of type and scale of HC device on performance of oxidative desulphurization is also presented and aeration was utilised as an enhancement technique.

HC was shown to be able to remove single ring thiophenes from dodecane without using any external catalyst or additives, however, in absence of catalyst or additives, it was not possible to remove dual ring thiophenes such as dibenzothiophene using HC. Therefore, in the second phase of this work, various strategies based on use of catalyst or additives to augment cavitation-based process were investigated. AC based experiments were opted for shortlisting suitable catalysts and additives for intensifying cavitation-based processes.