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Analysis of lignite liquefaction products processed with syngas and hydrogen sulfide. [Dibenzothiophene]

Technical Report ·
OSTI ID:6566705
A method for monitoring the presence of elemental and organic sulfur compounds in distillable low-rank coal liquefaction products utilizing column chromatography and dual detection (FID/FPD) capillary GC has been developed. The addition of H/sub 2/S to the continuous processing of Beulah, North Dakota lignite does not increase the amount or variety of sulfur-containing organic compounds in the recycle slurry ASTM-D1160 vacuum distillate products. It does, however, introduce sulfur and a variety of volatile sulfur-containing organics into the light oils condensed from the vapor phase in the reactor. The presence and variety of sulfur compounds after 12 to 14 reactor passes reflects the introduction of these components in the startup solvent. No increased mutagenicity was observed with the coal liquids processed with H/sub 2/S. The production of H-donors in the recycle slurry ASTM D-1160 distillates was enhanced by the presence of H/sub 2/S.
Research Organization:
Department of Energy, Grand Forks, ND (USA). Grand Forks Energy Technology Center
OSTI ID:
6566705
Report Number(s):
DOE/FC-1001; CONF-830303-1; ON: DE83001281
Country of Publication:
United States
Language:
English