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Priyanto, Unggul
Jurnal Energi dan Lingkungan (Enerlink)
Energy

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PENGARUH PROSES DUA TAHAP DAN PELARUT DALAM PENCAIRAN BATUBARA Priyanto, Unggul
Jurnal Energi dan Lingkungan (Enerlink) Vol 2, No 2 (2006)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

The influence of solvent was examined in the single- and two-stageliquefaction of Tanito Harum coal with FeNi supported oil carbon black(FeNi/KB) and a synthetic pyrite. FeNi/KB catalyst provide a high oi l yield inthe single-stage liquefaction when tetralin or 1methylnapthalene wasused, while pyrite (FeS2) gave a low oil yield in the liquefaction with 1-methylnapthalene although it produced a high enough oil yield in theliquefaction with tetralin. The single-stake liquefaction of coal gave extremelylow oil yields under the solvent free conditions for all catalysts examined. Inthe liquefaction of coal with solvent, the difference of oil yield producedbetween single-stage and two stage is small. However, the conversion of H--donor solvent after liquefaction was much lower than that of single-stageliquefaction. In the free-solvent liquefaction coal, two-stage liquefactionproduced much higher oil yield than single-stage.Kata kunci: solvent, catalyst, single-stage coal liquefaction, two-stage coalLiquefaction
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