KARAKTERISTIK PENCAIRAN BATUBARA MUSI BANYUASIN, SUMATERA SELATAN

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Septina Is Heriyanti
Lambok Hilarius Silalahi

Abstract

This paper presents the result of fundamental research on direct coal liquefaction
using lignite from Musi Banyuasin, South Sumatra. Three different reaction
temperatures, 430, 450, 470°C, were used to operate 5-L autoclave, with
hydrogen reaction pressure of 25 MPa and 60 minutes reaction time, to
investigate the effect of reaction temperature on oil yield composition. The study
used natural iron-based limonite catalyst from Soroako, South Sulawesi and
heavy oil (b.p. 300-420°C) produced from coal liquefaction process as a solvent.
Hydrotreatment process of liquefied coal was carried out in a packed tube reactor
in the presence of Ni-Mo/Al2O3
catalyst at the reaction temperature of 350°C. The
content of heteroatoms such as sulfur, nitrogen and oxygen during
hydrotreatment process were evaluated to characterize the quality of coal liquid
as fuel oil. The results showed that optimum coal liquefaction yield was 50.95%
at the reaction temperature of 450 °C. After hydrotreatment process sulfur,
nitrogen and oxygen contents as heteroatoms decreased up to 49%, 44% and
72%, respectively. The cetane number value for coal liquefied oil (30.6) was
much lower compared to petroleum diesel (48). Further treatment (secondary
hydrotreatment) is required to improve the quality of diesel oil from coal or
blending with petroleum diesel.
Kata kunci: direct liquefaction, Muba coal, hydrotreatment

Article Details

How to Cite
Heriyanti, S. I., & Silalahi, L. H. (2018). KARAKTERISTIK PENCAIRAN BATUBARA MUSI BANYUASIN, SUMATERA SELATAN. Jurnal Energi Dan Lingkungan (Enerlink), 7(2), 52–57. https://doi.org/10.29122/elk.v7i2.4234
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ARTICLE

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