Desulfurization and/or denitration of sulfur and nitrogenized hydrocarbon compounds, useful e.g. to depollute storage vats polluted by sulfur compounds, comprises adsorption by an adsorbent catalyst and regeneration of adsorbent catalyst

摘要

Desulfurization and/or denitration of sulfur and nitrogenized hydrocarbon compounds (I) obtained at distillation interval of 50-500[deg]C by sulfoxidation to obtain a purified compound containing sulfur (less than 10 ppm) and nitrogen (less than 10 ppm), comprises an adsorption reaction in the liquid phase on an adsorbent catalyst (II), and an adsorbent catalyst regeneration phase. Desulfurization and/or denitration of sulfur and nitrogenized hydrocarbon compounds (I) obtained at distillation interval of 50-500[deg]C by sulfoxidation to obtain a purified compound containing sulfur (less than 10 ppm) and nitrogen (less than 10 ppm), comprises an adsorption reaction in the liquid phase on an adsorbent catalyst (II) having a specific surface area of greater than 100 m2/g and a porosity of greater than 0.2 ml/g, and an adsorbent catalyst regeneration phase comprising: first phase comprising passing the passing fluid on (I) to remove a major part of the hydrocarbon fraction present in the porous volume, which is then reintroduced and mixed with the purified hydrocarbon; and combusting the adsorbed components in porous volume, by desorption with a desorbing solvent to recover the adsorbed compounds in porous volume.