FREMGANGSMAATE VED FREMSTILLING AV EN FOR-SULFIDERT KATALYSATOR, FREMGANGSMAATE VED FREMSTILLING AV EN SULFIDERT KATALYSATOR OG ANVENDELSE DERAV.

摘要

Ex-situ presulphidation of hydrotreating catalysts comprising impregnating the catalysts with an aqueous solution of an organic sulphur compound, e.g. the diammonium salt of 2,5-dimercapto-1,3,4-thiadiazole and 2,2′-dithiodiethanol, followed by drying of the impregnated material. The dried material is activated by contacting it with hydrogen gas at elevated temperature.