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- W4210766110 abstract "The operability of the Solid-Liquid Separation Unit using toluene as a solvent for settling-deashing of undeashed solvent refined coal (SRC) was established. Deashed product was very low in ash, but with a low melting point (100-130/sup 0/F). Some operational difficulties remain but these are associated with incomplete solution and poor mixing of the undeashed SRC and the solvent. The Incoloy 800 dissolvers and the sandbath-preheater coil were installed. All of the high-pressure, high-temperature service tubing was also replaced with Incoloy. Batch-autoclave settling tests for separation of liquefied coal from the mineral matter and unreacted coal showed that toluene was a more satisfactory solvent than benzene or methyl isobutyl ketone. Separations were similar with toluene and benzene, but could be attained at a lower pressure and temperature with toluene. Carbonization of lignite has been studied both experimentally and by literature survey in an effort to incorporate pyrolysis technology in the conceptual framework of a lignite refinery. A fundamental limitation noted was that any appreciable pyrolysis (even drying) significantly decreased the reactivity during liquefaction. An evaluation made of a plant for converting lignite by liquefaction into coproducts of SRL and a light oil indicated a selling priceof $1.53/MM Btu for the coproducts was required for a 12 percent DCF return. (LTN)" @default.
- W4210766110 created "2022-02-08" @default.
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- W4210766110 date "1976-01-22" @default.
- W4210766110 modified "2023-09-26" @default.
- W4210766110 title "Project lignite. Quarterly technical progress report No. 7, October, November, and December 1975" @default.
- W4210766110 doi "https://doi.org/10.2172/7364892" @default.
- W4210766110 hasPublicationYear "1976" @default.
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