A process for the fixed bed sweetening of petroleum distillates with the use of halogenated metal phthalocyanine, as a catalyst

摘要

A process for the fixed bed sweetening of petroleum distillates with the use of halogenated metal phthalocyanine, as the catalyst, comprising: impregnating the catalyst on an activated carbon bed by the circulation of an alcoholic alkaline solution of the catalyst by the activated carbon bed is to in the outlet a colorless solution is obtained, by passing of the petroleum destillate by the abovementioned catalyst activated carbon bed is charged together with air or oxygen at a temperature in the range from 20°C. to 100°C. and at a pressure in the range of 1 kg / cm² to 15 kg / cm² with a liquid hourly space velocity in the range of 1 / h to 15 / h, with continuous or intermittent injection of an alkali solution, such as, for example, sodium hydroxide having a concentration in the range of 0,5 to 20%, in order to obtain the desired mineral oil distillates with low mercaptan proportion to obtain.