Emulsion Catalysis in the Oxidative Desulfurization

As a new strategy for the liquid-liquid biphasic reaction system, emulsion catalysis has not been well discussed in the past reviews. In this chapter, we will focus on the application of emulsion catalysis in organic reactions. The chapter is arranged as three parts based on the reaction types, and highlights the relation between homogeneous catalysis (in solution) and heterogeneous catalysis (in the heterogeneous dispersion). 

Emulsion Catalytic Oxidative Desulfurization Using HjOj as Oxidant 

The reactivity of different sulfur-containing compounds including BT, 5-MBT, DBT, and 4,6-DMDBT (S 1000pgg ) was estimated for selective oxidation using another emulsion catalyst [CjgH37N(CH3)3]4[H2NaPWj(,03g]. The conversions of sulfur-containing compounds versus the reaction times at 30 °C in the emulsion 

Diesel Sulfur-containing compounds Sulfur content (figg ) Sulfur removal (%) 

Substrates Products Temperature (°C) Reaction time (h) Conversion (%) Seiectivity (%) 

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