Увеличение активности катализаторов глубокой гидроочистки дизельных фракций путём введения бора и фосфора

Abstract

CoMo-catalysts with modified by Boron and Phosphorus were studied. Supports and catalysts were characterized by nitrogen adsorption, XPS, HTEM, IR-spectroscopy of adsorbed CO, UV-Vis DRS. Catalysts were tested in hydrotreating of diesel fraction (initial S and N contents were 4100 ppm and 210, respectively). Catalysts were tested in hydrotreating of model mix (initial S and N contents were 1500 ppm and 100 ppm, respectively). All modified catalysts provided production of ultra-low sulfur diesel fuels (less than 10 ppm). The catalysts with a boron content of 1‒1,5 wt.% and a phosphorus of 1 wt.% were shown to have the highest activity.