Department of Chemical, Oil and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
Department of Chemical, Oil and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
Ultrason Sonochem. 2019 Nov;58:104698. doi: 10.1016/j.ultsonch.2019.104698. Epub 2019 Jul 16.
A Hydrodynamic Cavitation Assisted Oxidative Desulfurization (HCAOD) process was applied for treatment of diesel fuel feedstock using hydrogen peroxide and formic acid as the oxidant and catalyst, respectively. Investigation on the effect of main process variables including pressure drop (3-6 bar), time of treatment (10-30 min) and formic acid to oxidant molar ratio (n/n) (1-5), was performed through applying Response Surface Methodology (RSM) based on Box-Behnken design. Single and interactive effects of the parameters were recognized. A remarkable 95% extent of desulfurization at optimum conditions with HC pressure drop of 4.2 bar, acid to oxidant ratio (n/n) of 3.2 at 29 min was achieved. The results were also compared to an oxidation system without the aid of hydrodynamic cavitation. Accordingly, HCAOD can be considered as a promising treatment scheme for intensification of diesel oxidative desulfurization.
采用过氧化氢和甲酸分别作为氧化剂和催化剂，通过水力空化辅助氧化脱硫（HCAOD）工艺对柴油原料进行处理。应用基于 Box-Behnken 设计的响应面法（RSM），考察了主要工艺变量（压降 3-6 巴、处理时间 10-30 分钟和甲酸与氧化剂摩尔比（n/n）（1-5））的影响。研究了参数的单独和交互作用。在最佳条件下，当 HC 压降为 4.2 巴、酸与氧化剂的摩尔比（n/n）为 3.2 时，脱硫率达到 95%。研究结果还与没有水力空化辅助的氧化体系进行了比较。因此，HCAOD 可以被认为是强化柴油氧化脱硫的一种很有前途的处理方案。
