EVALUASI KINERJA KATALIS LIMONIT SOROAKO PROSES PENCAIRAN BATUBARA BANKO SELATAN

Lambok Hilarius Silalahi

Abstract


Investigation of Limonite for catalyst on South Banko coal liquefaction were

carried out under standard condition which has developed by BPPT. Limonite

Soroako is a natural mineral that found at Nickel Mining on Soroako, South

Sulawesi.Four samples of limonite was examined using 5L autoclave at our coal

liquefaction laboratory in order to investigate their activities to produce high

distillate yield at standard condition (450oC, 9MPa cold H2).The results showed

that limonite S99-E-MY gave a higher distillate yield than those of other limonite

(difference about 10-30%daf coal or %bkta). Further investigations were

conducted to compare with other catalysts: synthetic gFeOOH and pyrite (FeS2).

Again, the activity of limonite S99-E-MY was still superior compared to those of

synthetic and pyrite catalysts. The yield difference was about 10-16%daf coal or

%bkta).Experiment revealed that the factor of FeOOH critically affected the coal

liquefaction reaction to improve the distillate yield and to reduce CLB yield.

Besides, the representative of Co metal in the limonite (≥5-10 %bk) could give

synergism effect with FeOOH to improve the activity of limonite.

Kata Kunci: g–FeOOH, pyrite (FeS2), limonite, soroako, coal liquefaction


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DOI: http://dx.doi.org/10.29122/elk.v2i1.1527

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