sponge pen, sponge ink pen, sponge gel ink pen, sponge grip pen, pens soft touch from sponge Tonglu shangmei pen industry co.,ltd , https://www.shangmeipenindustry.comAfter reacclimation, Aspergillus fumigatus which can remove DBT metabolizes various complex organic sulfur compounds, especially 4,6-dimethyldibenzothiophene. Aspergillus fumigatus has a significant desulfurization effect on oils with low sulfur content, and the desulfurization rate is over 98% in 48 h; it has a significant desulfurization effect on 0 # diesel, and the desulfurization rate in 96 h is 90.43%. The desulfurized Aspergillus fumigatus has strong environmental tolerance and can be directly used to remove organic sulfur in petroleum and its products.