Microbial desulfurization of coal
AssigneeThe Standard Oil Company
InventorsStanley E. Stevens, Jr., Wilella D. Burgess
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Abstract
A process for the microbial desulfurization of the coal utilizing Hansenula sydowiorum, Hansenula ciferrii, Hansenula lynferdii, and/or Cryptococcus albidus.
Claims9
A process for the microbial desulfurization of solid carbonaceous solids, said process comprising subjecting an aqueous slurry of carbonaceous solids to the desulfurizing action of microorganisms selected from the group consisting of Hansenula sydowiorum, Hansenula ciferrii, Hansenula lynferdii, Cryptococcus albidus and mixtures thereof.
A process for the microbial desulfurization of coal comprising subjecting an aqueous coal slurry to the desulfurizing action of microorganisms selected from the group consisting of Hansenula sydowiorum, Hansenula ciferrii, Hansenula lynferdii, Cryptococcus albidus and mixtures thereof in the presence of a nutrient medium for said microorganisms at essentially neutral pH conditions and room temperature.
Dependencies are inferred from the claim text.