IDENTIFIKASI TINGKAT REAKTIFITAS KATALIS DASAR BESI JENIS LIMONIT DAN PIRIT PADA PROSES PENCAIRAN BATUBARA

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Muhammad Hanif
Hartiniati Hartiniati

Abstract

The effect of a highly dispersed limonite synthetic catalyst and natural pyrite

catalyst on the liquefaction of Yallourn coal in relation to the

transformation into pyrrhotite (Fe1-x S) was examined and compared. The

study suggests that γ-FeOOH catalyst can be transformed into smaller

pyrrhotite at lower temperatures around 250oC, and therefore promotes the

activation of gaseous hydrogen notably at the heating stage up to 450oC.

Keeping H2S concentration at approximately 0.1vol% in the gas phase was

found to be an effective way of maintaining the liquefaction activity of the

recycle catalyst, due to the restraint of both troilite formation and the

agglomeration of pyrrhotite. The study also demonstrates that a high oil

yield over 60wt% daf can be obtained successfully in the coal liquefaction of

Yallourn coal with the reduction of catalyst γ-Fe00H loading.

Kata Kunci : pyrrhotite, troilite, coal liquefaction, pyrite

Article Details

How to Cite
Hanif, M., & Hartiniati, H. (2016). IDENTIFIKASI TINGKAT REAKTIFITAS KATALIS DASAR BESI JENIS LIMONIT DAN PIRIT PADA PROSES PENCAIRAN BATUBARA. Jurnal Energi Dan Lingkungan (Enerlink), 2(1). https://doi.org/10.29122/elk.v2i1.1526
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