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INDONESIA
Jurnal Energi dan Lingkungan (Enerlink)
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : 02169541     EISSN : -     DOI : -
Core Subject : Science,
Energy
Enerlink adalah jurnal yang diterbitkan 2 kali setahun oleh Pusat Teknologi Pengembangan Sumberdaya Energi dan Industri Kimia BPPT di bidang energi dan lingkungan. Enerlink is a scientific journal that publishes twice annually by Centre of Energy Technology and Chemical Industry of BPPT.
Arjuna Subject : -
Articles 322 Documents
 1   2   3   4   5 
ACETONE-BUTANOL-ETHANOL FERMENTATION FOR BIOENERGY USING VARIOUS SUBSTRATES IN DEFINED TYA MEDIA Ambarsari, Hanies; Sonomoto, Kenji
Jurnal Energi dan Lingkungan (Enerlink) Vol 11, No 1 (2015)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

A series of experiments had been conducted to investigate the performance of Clostridiumsaccharoperbutylacetonicum strain N1-4 (ATCC 13564) in direct fermentation of acetone, butanol, andethanol (ABE) using several substrates that have not been investigated previously using this strain,such as cellobiose, dextrin, starches of corn, potato, tapioca, wheat, and sago, as well as morecomplex carbohydrates such as xylans, cellulose, and carboxyl methyl cellulose (CMC), particularly tostudy the effect of such various substrate types and concentrations, as well as the substrates mixtureson the ABE ratio and productivity. The results showed that strain N1-4 could directly produce ABE fromvarious substrates, from monosaccharide to polysaccharides of hexose or pentose sugars, exceptCMC and cellulose. The experiments also suggested that cellobiose (a hexose disaccharide) could bethe more efficient substrate for strain N1-4 than glucose (a monosaccharide) to produce ABE in the TYA(Tryptone Yeast Agar) medium. It was proven also that the ABE ratio was very dependent on the typeand concentration of substrates being used by strain N1-4.Keywords: acetone, butanol, ethanol, clostridium saccharoperbutylacetonicum N1-4, fermentation
REVIEW OF BANKO COAL LIQUEFACTION FEASIBILITY STUDY Tirtosoekotjo, Soedjoko
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 1 (2007)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

Review terhadap studi kelayakan hasil pencairan batubara Banko dilaksanakanoleh tim due diligence yang diprakarsai oleh Puslitbang TEMIRA bekerjasamadengan peneliti dari ITB, UNSRI, Lemigas dan Pertamina. Pada pelaksanaannyasumber data dan informasi serta konsultasi dilakukan dengan bantuan BPPTdan PTBA, dan pemilik teknologi dalam hal ini NEDO/Kobe Steel Ltd. Evaluasistudi kelayakan mencakup observasi lokasi tambang dan pabrik, adumsi dasardan analisa sensitifitas, dengan focus studi paa aspek teknis dan keekonomianpencairan batubara Banko. Hasil due diligence telah dapat menerima katalisalami dapat menekan biaya produksi, tetapi resiko berupa suplai katalis secarakontinyu masih dipertanyakan. Oleh karena itu penggunaan katalis sintetis untukmenjamin suplai sanngat dianjurkan, namunbaik BPPT maupun NEDO/KobeSteel Ltd tidak dapat menyetujuinya. Tim due diligence menyatakan bahwapembesaran skala pabrik menjadi 6.000 ton per hari dari skala pilot plant 50 tonper hari dinilai terlalu berisiko. Pembesaran skala sebaiknya dilakukan melaluipabrik kapasitas 50 ton pe rhari sebelum masuk skala komersial. MeskipunNEDO/Kobe Steel dapat menerima keberatan tersebut, akan tetapi sangatdiyakini bahwa terbatasnya biaya dan waktu menyebabkanhal ini tidakmemungkinkan. Tim due diligence menekankan bahwa hasil studi kelayakantidak mengkaji secara rinci aspek teknis dan financial proses pemurnian untukmeningkatkan mutu minyak batubara hasil proses pencairan, bahkanmengandalkan Pertamina untuk mengambil peran tersebut. Dimintakan kepadakepada NEDO/Kobe Steel agar studi kelayakan pabrik pencairan batubaraberdasarkan pada perhitungan break even point, daripada menggunakan variasimodul kapasitas 6.000 – 12.000 dan 36.000 ton batubara (daf) per hari. Akantetapi NEDO/Kobe Steel meyakini bahwa pendekatan tersebut sebaliknya dinilaileih mudah, sederhana dan cepat.Keywords: batubara Banko , due diligence, studi kelayakan, katalis Soroako
PEMANFAATAN REMOTE SOURCE SOLAR LIGHTING (RSSL) UNTUK PENGHEMATAN ENERGI DI GEDUNG KOMERSIAL Busono, Suryo; Hilmawan, Edi
Jurnal Energi dan Lingkungan (Enerlink) Vol 11, No 2 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1961.44 KB) | DOI: 10.29122/elk.v11i2.1581

Abstract

Remote Source Solar Lighting (RSSL) is an innovation in lighting technology in the building to transfernatural light into areas which are not covered by conventional natural lighting techniques. In this study,RSSL applications in an Office Building in the Puspiptek Area Tangsel has been examined.Measurement and simulation are used evaluate the effectiveness of the use of RSSL in illuminatingareas that do not have access to outside light. Advanced simulation was conducted to compare theuse of artificial light to produce the same illumination level. The measurement results show that theSolar Light Collector combined with Light Tube is able to transfer light from the outside into the roomwith a level of efficiency of 39.48%. Utilization of light focusing module can improve the efficiency oflight distribution with an efficiency of up to 56.1%.The simulation results show that RSSL with light tubediameter of 35 cm, capable of illuminating an area that does not have access to the outside withillumination level up to 219 Lux at the zenith ilumination of 89000 Lux. However, RSSL is no longereffective when the zenith illumination down to 26000 Lux. Comparison between CFL bulbs with RSSL,with the same lighting point, when the zenith illumination levelis average or higher, RSSL providelighting levels on par with CFL bulbs, but still lower than the LED lights. When the zenith illumination islow / minimal then 14 points RSSL only able to provide lighting equivalent to 8 points CFL.Key Words: Energy conservation in commercial building, smart building, natural lighting, RemoteSource Solar Lighting 
PROSES HIDROGENASI MINYAK BATUBARA UNTUK PEMENUHAN TARGET MUTU PASAR Sugeng, Dhani Avianto
Jurnal Energi dan Lingkungan (Enerlink) Vol 4, No 1 (2008)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

A characterization of synthetic liquefied oil from coal was conducted to preparefor further treatment of its quality. One of few techniques in improving the coal oilis done through hydrotreatment process to remove its nitrogen, sulfur, oxygenand aromatics contents known as heteroatoms which make the oil stability notgood. Experiment using small-scale fixed bed reactor shows there is animprovement in the quality of recycle solvent used for coal liquefaction after firsthydrotreatment. coal slurry using first hydrotreated oil as solvent shows lowerviscosity than that of non-hydrotreated oil, and if mixed with coal from Banko, thecoal concentration could achieve as high as 50%. Nitrogen and sulfur contents inhydrotreated oil are reduced to negligible level and the storage stability isremarkably improved after hydrotreatment. The quality of fuel from secondhydrotreatment is still lower than that of petroleum productc in terms of ‘cetanenumber’, ‘smoke point’, contents of sulfur and aromatics.Kata kunci: hydrotreatment, smoke point, fixed bed reator, heteroatom,synthetic liquefied oil, recycle solvent
COAL UPGRADING TECHNOLOGY FOR INDONESIAN LIGNITE Silalahi, Lambok Hilarius; Deguchi, Tetsuya; Makino, Eiichiro
Jurnal Energi dan Lingkungan (Enerlink) Vol 5, No 2 (2009)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

Langkah strategis untuk promosi aplikasi teknologi upgrading lignit diIndonesia telah menjadi bahasan. Tulisan ini memberian pemikiran danpertimbangan cara-acra proosi teknologi yang sedang dalam proseskomersialisasi. Perubahan secara drastic suplai dan demand energi diselruhdunia telah mendorong Indonesia untuk mengkaji kebijakan berjalan untumengantisipasi perubahan di tahun-tahun mendatang. Salahs atu perubaanyang mendasar adalah meningkatnya demand batubara, selama batubaramasih dinilai sebagai bahanbakar yang paling ekonomis dibandingkan sumberenergy lainya, meskipun harga batubara masih cukup tinggi mengikuti hargabahan bakar minyak. Oleh karena batubara merupakan potensi terbesar didalam negeri, perubahan yang sangat mendasar kebijakan energi, khususnyamenyangkut pendayagunaan batubara peringkat rendah menjadi sangatpenting mengingat hampir 70% dari total cadangan batubara sebesar 57,8miliar ton merupaan batubara peringkat rendah. Indonesia telah menaikkanvolume ekspor batubara per tahun meskipun terjadi krisis ekonomi baru-baruini. Kebutuhan domestik batubara masih bersifat flat disebabkan krisis ekonomi.Diprediksi demand akan meningkat karena subsid bahan bakar minya secarabertahap akan dihapuskan dan batubara merupakan energy alternative.Mengingat situasi tersebut usaha promosi teknologi upgrading batubara sudahseharusnya dipercepat. Untuk itu diperlukan seleksi teknologi yang berpegangefektifitas biaya, ramah lingkungan dan menghasilkan produk batubara dengannilai kalor tinggi dan tidak mudah terbakar. Hasil pengoperasian pilot plant 5ton per hari yang terdapat di Palimanan,Cirebon, Jawa Barat yang merupakanproyek kerjasama Indonesia dengan Jepang, untuk konfirmasi kinerja enjiniringpada proses yang kontinyu juga menjadi topik bahasan dalam tulisan ini.Keywords: coal upgrading technology, upgrading brown coal, pilot plant, lowrank coal, Cirebon
FEASIBILITY STUDY ON COAL LIQUEFACTION PROJECT IN KALIMANTAN Hartiniati, Hartiniati; Hanif, Muhammad; Tamura, Masaki; Yanai, Shunichi; Shigehisa, Takuo
Jurnal Energi dan Lingkungan (Enerlink) Vol 4, No 2 (2008)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

Tulisan ini secara ringkas nejelaskan studi kelayakan pabrik pencairan batubaraperingkat rendah yang berlokasi di dekat pantai Kalimantan Selatan (coastalCase) sebagai alternatif lokasi dari studi kelayakan yang sebelumnya dilaksanaanuntuk lokasi pedalaman di Banko, Sumatera Selatan (inland case). Tujuan utamastudi ini, pertama untuk menginvestigasi efek lokasi pabrik terhadap keekonomianproyek, dan kedua untuk mengidentifikasi poetnsi kelayakan proyek pencairanbatubara pabrik pabrik komersial pionir di Indonesia. Didandingkan dengan aksuspedalaman, lokasi dekat pantai mempunyai keunggulan dari segi penghematanbiaya konstruksi dan biaya transportasi sampai dengan 10%. Analisis finansialdengan metode DCF telah memberikan hasil yang menjanjikan bahwa pabrikpionir kapasitas 12.000 ton per hari sudah dapat memproduksi bahan bakarminyak bersih dari batubara bersih tahun 2011, pada tingkat harga US$ 23.3/bbl(FOB, Berau Lati) and US$ 26.1/bbl (FOB, Mulia Satui) dengan harga aktual(COE=1.0). Pabrik pinoir dengan kapasitas kecil (3.000 tob per hari) masih dinilailayak dengan insentif berupa harga batubar alebih rendah, bunga pinjaman llunakdan lainnya.Keywords: banko coal, mulia satui, berau lati, metode DCF, pencairan batubara
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)
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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
Table of Content Yusnitati, Yusnitati
Jurnal Energi dan Lingkungan (Enerlink) Vol 7, No 1 (2011)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

PENGEMBANGAN SISTEM PENGOLAHAN LIMBAH PABRIK BATUBARA CAIR Fatimah, Nevi; Soleh, Soleh
Jurnal Energi dan Lingkungan (Enerlink) Vol 2, No 2 (2006)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

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Abstract

Coal liquefaction process ( BCL Process) becide produce liquid fuel also liquidwaste that contains amonia, phenols and other organic matter in highconcentration. This waste must be proceess before releasing to the environmen.Tthe processing system to treat the waste must efficient and competent toovercome some problems may occur during processing. In this paper will discussthe investigation and experiment for liquid waste treatment designed for coalliquefaction plant.This plant will produce amonia by stripping, phenol by solventextraction that will be reduction by fluidization media system. This system wasapplied for Brown Coal Liquefaction (Victoria) Pty. Ltd and showed very effectiveto cacth phenols and others organic matter.Kata kunci: waste treatment, coal liquefaction plant, coal liquefied oil
PENGARUH SENYAWA NITROGEN PADA DESULFURISASI MINYAK DIESEL DENGAN KATALIS NIMO/AL2O3 DAN COMO/AL2O3 Murti, Sri Djangkung Sumbogo; Faizal, Muhammad
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 1 (2007)
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Abstract

Inhibiting effect of nitrogen compounds in petroleum diesel (gas oil) on theperformance of the catalyst NiMo/Al2O3 and CoMo/Al2O3 uponhydrodesulfurization (HDS) has been investigated using an autoclave reactor.Operating conditions used was 340oC temperature and initial pressure 50 kg/cm2H2. Oil sample used was diesel oil and diesel oil-free nitrogen. Stages of thereaction between hydrogen replacement is intended to find out more about otherinhibiting effects derived from byproducts such as H2S and NH3. The entirecompound in diesel oil was analyzed by GC-AED before and afterhydrotreatment. Catalysts NiMo/Al2O3 and CoMo/Al2O3 showed different activityin HDS and the effect of nitrogen compounds. In principle, the HDS to type withhighly reactive sulfur / reactive will be more resistant to inhibiting properties ofnitrogen than sulfur compounds are hard to react (refractory). In contrast, forcatalysts showed como real effect of nitrogen compounds. One of refractorycompounds are 4,6-dibenzothiophene (4,6-DMDBT), can effectivelyhydrogenated by the removal of hydrogen compounds and renewal nitrogen onthe HDS. This result shows the synergistic effect due to dischargesimultaneously both types of block. Furthermore, in brief reactive nitrogencompounds in the HDS also discussed in this paper.Kata kunci: hydrodesulfurisasi, hambatan senyawa nitrogen, katalisNiMo/Al2O3, CoMo/Al2O3, GC-AED

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