This study modelled and optimized the oxidative desulfurization of gas condensate with ozone, as a gaseous oxidant. Experiments in this study were non-catalytic, and sulfone extraction was done by acetone. Response surface methodology was applied for the experimental design, mathematical modeling, and optimization using Design-Expert® software. The influence of effective variables and their interaction on the response was also investigated. For the first time, non-catalytic ozonation of this feed was performed on the oxidative desulfurization process. The developed model properly fitted the experimental results. The accuracy of the model was confirmed, while this model predicted 95% desulfurization would result in the optimized conditions, and the actual value of desulfurization obtained was 95.8%. Further, the results indicated interaction between the superficial gas velocity of ozone and coefficient of oxidant-to-sulfur molar ratio. GC-SCD revealed that DBT was the most refractory component in comparison with the other sulfur components in the gas condensate. It was also found that 84.3% desulfurization occurred just with oxidation and sedimentation of sulfones and without solvent extraction.

中文翻译：

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臭氧非催化氧化脱硫凝析油及响应面法工艺优化

该研究模拟并优化了使用臭氧作为气态氧化剂的气体冷凝物的氧化脱硫。本研究中的实验是非催化的，砜萃取是用丙酮进行的。使用 Design-Expert® 软件将响应面方法应用于实验设计、数学建模和优化。还研究了有效变量及其相互作用对响应的影响。首次在氧化脱硫工艺中对该原料进行非催化臭氧化。开发的模型正确地拟合了实验结果。模型的准确性得到了验证，而该模型预测的脱硫率达到95%会得到优化的条件，得到的脱硫率实际值为95.8%。更多，结果表明臭氧的表观气速与氧化剂与硫的摩尔比系数之间存在相互作用。GC-SCD 显示，与气体冷凝物中的其他含硫成分相比，DBT 是最难熔的成分。还发现84.3%的脱硫率只发生在砜的氧化和沉淀下，没有溶剂萃取。