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Nataadmadja, Nasikin
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Energy

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IDENTIFIKASI PRODUK TURUNAN HYDROPROCESSING MODEL MINYAK SINTETIS BATUBARA MENGGUNAKAN GC-FID/NPD/MS Hanif, Muhammad; Yusnitati, Yusnitati; Nataadmadja, Nasikin
Jurnal Energi dan Lingkungan (Enerlink) Vol 6, No 1 (2010)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.838 KB) | DOI: 10.29122/elk.v6i1.1563

Abstract

An analysis of identifying a derivative product of liquefied coal modelhydroprocessing was conducted. For that purpose, an integration gaschromatography flame ionization-nitrogen phosphorous detector and massspectrometry (GC-FID/NPD/MS) was used. Hydroprocessing process wasperformed by vibrating micro autoclave tipe batch using Ni-W/Alumina catalystunder initial hydrogen pressure 6 MPa, reaction temperature 375oC and one hourretention time. The analysis result showed that the predominant reaction werehydrogenation, hydrodenitrogenation (HDN) and hydrodeoxygenation (HDO).The HDO of methyl phenol and ethyl phenol took place faster than the otherhydroprocessing reactions such as HDN of quinoline and aromatic hydrogenation(butyl benzene, naphthalene, phenanthrene dan pyrene). This indicates that thehydrogenation reaction or the cleavage of C-O bonding took place very fast thatalkyl could not be detected in the oil. The HDN reaction or the cleavage of C-Ntook place slower but the the nitrogen containing compound vanished faster dueto selective adsorption of the catalyst. However the hydrogenation reaction ofmono-aromatic took place faster than poly-aromaticKata kunci: gas chromatography, identifikasi senyawa, model minyak sintetis
KOMPARASI REAKTIFITAS PELARUT DARI MINYAK BAKAR DAN RESIDU RANTAI PANJANG PADA PENCAIRAN BATUBARA BANKO Hidayat, Herman; Nataadmadja, Nasikin
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 2 (2007)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/elk.v3i2.1548

Abstract

The needs of fuel, especially for automotive fuel, in Indonesia keeps onincreasing, while petroleum reserves is getting lessen everyday. One alternativeto achieve the diversified energy strategy for the transportation sector is theutilization of the Indonesian low rank coal reserves through the implementation ofcoal liquefaction technology. Coal liquefaction process that has been done beforewas found economically and technically less effective. Those are the reasons fordoing coal liquefaction research using petroleum residue as the solvent, namelyco-processing, which expected to give a better performance than the standardcoal liquefaction. The feedstocks are lignite coal from Central Banko, petroleumresidue (fuel oil and long residue), limonite catalyst from Soroako and hydrogengas. The reactions were carried out in a stirred batch autoclave reactor at 120Kg/cm2 of initial hydrogen pressure and 450oC for 1 hour, at 2 of S/Fe atomicratio and 2 of solvent/coal weight ratio. The liquid products were fractionated byvacuum distillation and the gaseous products were analyzed by gaschromatography. It showed that co-processing with long residue as the solvent isbetter than fuel oil or standard coal liquefaction, with 39.17 wt% daff of oil yiled.The cetane index of middle oil fraction was 27.8 and the efficiency of hydrogenconsumption was 23.68 (oil yield/hydrogen consumption).Kata kunci: pencairan batubara, co-processing, residu minyak bumi, batubaralignit
Co-Authors Herman Hidayat, Herman Muhammad Hanif Yusnitati Yusnitati