cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota adm. jakarta pusat,
Dki jakarta
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 
PENGARUH PENAMBAHAN SULFUR PADA PROSES PENCAIRAN BATUBARA BANKO Hidayat, Herman; Adiarso, Adiarso
Jurnal Energi dan Lingkungan (Enerlink) Vol 2, No 2 (2006)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (161.064 KB)

Abstract

The effect of adding sulfur in Central Banko coal liquefaction is examined usingautoclave reactor with limonite catalyst from Soroako, at 450oC, H2 initialpressure = 9 Mpa, holding time = 60 minutes, and S/Fe ratio varies from 1, 2, 3dan 6. It is found that there is significant increase in distillates yield by 53,81% forthe increase of S/Fe ratio from 1 to 2, and at the same time CLB decreases from53,5% to 29,47%. This is because the amount of pyrrhotite for S/Fe ratio =2 ishigh and enough to promote cracking to convert coal to distillates or oil. For S/Feratio = 3, the increase of distillates or oil yield is not significant, so does for S/Fe= 6. This concludes that adding more sulfur in Central Banko coal liquefactionusing limonite catalyst from Soroako is not effective and therefore does notinfluence much to the oil yield. This is because the particle size and amount ofpyrrhotite already achieves equilibrium for S/Fe ratio = 2. The changing of S/Feratio does not give much effect to the yields of H2O, CO+CO2, C1~C4,andhydrogen consumption as well..Kata Kunci : limonit Soroako, rasio S/Fe,yield distilat, yield CLB, pirhotit, yieldH2O, yield CO+CO2, yield C1~C4, konsumsi gas hidrogen
ANALISIS KEUNGGULAN LIMONIT SOROAKO SEBAGAI KATALIS PENCAIRAN BATUBARA (DIRECT LIQUEFACTION) Hidayat, Herman; Silalahi, Lambok Hlarius
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 1 (2007)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.7 KB)

Abstract

An investigation of catalytic activities of Soroako limonite ore using 1liter autoclavewas carried out. The comparison of the results with other iron catalysts forliquefaction of Banko coal was also performed to find out the best catalyst forBanko coal liquefaction. Much efforts to improve brown coal liquefaction processefficiency has been conducted at BPPT since 1994 through the design of highlyactive catalysts along with design of good hydrogen donor solvents. Someprevious studies have shown that limonite ore has several superior characteristicscompared to pyrite (FeS2) when used as catalyst in coal liquefaction process. Onemain reason is that limonite ore contains both iron and nickel compound asFeOOH, FeNi2OOH, FeCr2OOH that found to be responsible of high distillate.The use of natural ore for catalyst will implies that the production of industrialcatalyst for coal liquefaction could be obtained with low production cost. Theresults suggest that catalytic activity of Soroako limonite could be achieved at lowtemperature around 300 oC or less changing its crystallite form to pyrrhotite (Fe1-xS) species. Such phenomenon is similar to that of highly active Yandi Yellowcatalyst. Moreover, Soroako limonite catalyst also gives higher oil yield withsmaller amount of hydrogen consumption compare to pyrite and Yandi yellowcatalysts. So it concludes that Soroako limonite has high catalytic activity, and itssoft physical nature makes it possible to be pulverized into sub-micron particlesize easily and economically. Soroako limonite, therefore, can be recommendedas one of the most suitable catalysts for commercial coal liquefaction plant to beconstructed in the future.Kata kunci: coal liquefaction, soroako limonite, -FeOOH, pyrrhotite, limonitecatalyst
PENGUJIAN PENGGUNAAN SYNGAS HASIL GASIFIKASI BATUBARA SEBAGAI BAHAN BAKAR PADA GAS ENGINE Syafrinaldy, Ade
Jurnal Energi dan Lingkungan (Enerlink) Vol 11, No 1 (2015)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.296 KB)

Abstract

Kegiatan pengujian ini dimaksudkan untuk mengetahui kemungkinan pemanfaatan syngas hasil produksi Pilot Plant Gasifikasi Batubara di Gresik, Jawa Timur sebagai bahan bakar generator listrik.  Sebagaimana diketahui syngas hasil dari proses gasifikasi batubara dapat dimanfaatkan secara langsung untuk pembangkit listrik dengan bantuan sebuah syngas generator set. Pilot Plant Gasifikasi Batubara yang telah dibangun di Gresik mempunyai gasifier berdiameter 1 m dengan kapasitas konsumsi batubara 150 kg/jam. Umpan sebesar itu diharapkan akan memberikan nilai kalor syngas sebesar 5300 kJ/Nm3 dan produksi syngas sebesar 390 m3/jam.Ini berarti tenaga listrik yang dihasilkan akan setara dengan 580 kW. Generator set yang digunakan dalam pengujian hanya mempunyai  kapasitas daya maksimal  sebesar 200 kWe. Pemilihan kapasitas generator set yang lebih kecil ini dilakukan dengan pertimbangan kemungkinan adanya derating pada power generator, kualitas umpan batubara, kualitas syngas yang dihasilkan, debit syngas dan juga pemakaian batubara hanya sepertiga dari kapasitas maksimum. Hasil yang didapat dari uji kinerja pilot plant menunjukkan bahwa syngas yang dihasilkan oleh gasifier sangatlah mungkin dijadikan sebagai bahan bakar pembangkit listrik. Pengujian pembebanan listrik hingga 72 kW dapat berjalan lancar tanpa fluktuasi voltase yang berlebihan. Syngas yang dihasilkan gasifier dapat memenuhi kriteria gas engine pada generator set, setelah melalui beberapa proses pembersihan, dan dapat dengan mudah memproduksi listrik. Dengan terpenuhinya kriteria bahan bakar gas engine ini maka secara keseluruhan pilot plant gasifikasi batubara dan gas engine dapatlah disebut sebagai Pembangkit Listrik Tenaga Gasifikasi Batubara (PLTGB)
PENINGKATAN PEROLEHAN MINYAK EFEK RESIKEL RESIDU PENCAIRAN BATUBARA Hanif, Muhammad
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 2 (2007)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (183.088 KB)

Abstract

This paper presents the effect of recycle CLB (coal liquid bottom) on oil yieldfrom coal liquefaction process which contains of activated catalyst, organicresidue, and ash from coal. To recover activated catalyst from CLB is notextremely difficult but also very expensive. Therefore one possible way ofutilizing this activated catalyst and remaining convertible organic residue in CLBmore effectively is by recycling the CLB. As a result, the efficiency of coalliquefaction process can be improved significantly. Experiment using 1Lautoclave that's equipped with stirrer is conducted using Banko Coal at operatingtemperature of 450oC, initial hydrogen pressure of 12 MPa, and holding time 60min. Catalyst used in the experiment is medium grade limonite (MGL) fromSoroako with particle size less than 0.8 m and concentration of 3% mafc as Fe.Coal particle size is 200 mesh (74m).The experiment result suggests that CLBaddition can increase the oil yield of coal liquefaction. Recycle (additional) CLB of50 and 70wt% mafc can increase the oil yield from 25,71wt% mafc to 51,83 and65,7wt% mafc respectively.Kata kunci: hidrogenasi, likuifaksi, katalis, limonit, Soroako, pencairan batubara,CLB, daur ulang
PENGARUH FAKTOR UDARA TERHADAP PARAMETER OPERASI FLUIDIZED BED GASIFIER BIOMASSA Rahardjo, Bambang Suwondo
Jurnal Energi dan Lingkungan (Enerlink) Vol 5, No 1 (2009)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.456 KB)

Abstract

Development on fluidized bed gasification of biomass has been initiated byYayasan Dian Desa collaboration with NEDO (New Energy and IndustrialTechnology Development Organization of Japan) starting from small scale(2000–2003), bench–scale tests (2004–2005) and pilot–plant (2006–2009). Since2006, a cooperative research and development on fluidized–bed gasification ofbiomass established and agreed between the BPP Teknologi, Yayasan DianDesa and NEDO to investigate the influence of the air factor on other gasifieroperation parameters: bed temperature, gas calorific value and gasifier coldefficiency. The experiments were carried out with the following kinds of biomass:rice husk, sawdust, sugarcane bagasse and spent coffee grounds. Therelationship between the gasifier cold efficiency and air factor shows that thecurves for rice husk and sawdust have a maximum; for bagasse the relationshipis decreasing because of intensive elutriation; for spent coffee grounds due tofeeder limitations, it was not possible to feed the biomass flow corresponding toair factor values greater than 0.2. The low efficiency values are a consequence ofthe lack of thermal insulation in the freeboard zone.Kata kunci: fluidized bed, gasification, biomassa
PERBANDINGAN KARAKTERISTIK PENCAIRAN BATUBARA BANKO DAN TANITO HARUM SEBAGAI EFEK KERJA KATALIS LOGAM TRANSISI Hanif, Muhammad; Adiarso, Adiarso
Jurnal Energi dan Lingkungan (Enerlink) Vol 4, No 2 (2008)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (222.21 KB)

Abstract

Characterization of two oil derived from Indonesian lower-rank coals from SouthBanko (SB) and Tanito Harum (TH) were carried out after liquefied in thepresence of nickel/molybdenum (Ni/Mo) and cobalt/ molybdenum (Co/Mo)catalysts without added solvent. Both coals treated with Ni/Mo have highconversion than those treated with Co/Mo when reacted with hydrogen withinitial pressure of 6MPa at 400oC for 30 minutes. However, with sulfur (CS2)added, the difference between Ni/Mo and Co/Mo catalysts for conversion of bothcoals is eliminated. SB-coal exhibits better conversion than that of Ni/Mo orCo/Mo-treated TH-coal. This probably due to the structure of TH coal is morecondensed and stronger than that of SB coal. The effect of single metal (Ni, Coor Mo separately) could explain the different conversion between Ni/Mo andCo/Mo with and without sulfur and also the difference between SB and TH whenthey reacted with Ni/Mo and Co/Mo with and without added sulfur. The order ofeffectiveness for SB, when it reacted in the absence of sulfur, was decreasedfrom Ni>Mo>Co. But the order was shifted to Mo>>Ni>Co. The similar order wasalso found for TH coal under the same conditions. The study also shows thatreactivity of SB coal was higher than that of TH coal. This results in better yield offuels. Fortunately, the TH coal is still potentially developed for introducing theefficient process of sub bituminous coal liquefaction in Indonesia.Kata Kunci: coal liquefaction, katalis Ni/Mo, Banko, Tanito Harum
POTENSI PENGHEMATAN ENERGI LISTRIK DI INDUSTRI KARPET Hasan, Achmad
Jurnal Energi dan Lingkungan (Enerlink) Vol 5, No 2 (2009)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (566.153 KB)

Abstract

Potential energy savings is one way to plan for optimizing the supply and use ofenergy needed by the industry. Portrait of the use of electrical energy used incarpet industry supplied from PT.PLN (Persero) with the power contract for 1730kVA through 2 pieces of the transformer with electrical energy consumption by anaverage of 19,979,941 kWh per year. Supplies of gas / diesel fuel oil for boilerfeed of 1.4537 million m3 per year with a calorific value of 6 tons / hour and 900liters of diesel oil per year. Working voltage is still in the allowed range, while forthe voltage unbalance is still low at under 2.5% and total harmonic distortionvoltage is still low at 2% and this can be expressed less well and there are lowpower factor at some expense. In case: PT.Classic Prima Carpet Industries.Kata kunci: energi, listrik, penghematan, filter harmonik, konversi, konservasi
STUDI PARAMETER KELAYAKAN USAHA PENCAIRAN BATUBARA DI INDONESIA Permana, Adhi Dharma
Jurnal Energi dan Lingkungan (Enerlink) Vol 7, No 1 (2011)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.998 KB)

Abstract

Coal liquefaction technology holds promise to provide synthetic liquid fuels as a substitute for conventional liquid fuels. For the purpose of application of a hig investment and advance technology, such as coal liquefaction technology, the competitiveness of its product need to be assessed before pursuing a commercial venture. The market of coal liquefaction technology is the oil fuels market of which its price is volatile. This paper proposes a techno-economical assessment of the Brown Coal Liquefaction tecnology through a base case calculation and a series of scenarios to perform sensitivity analysis of various parameters deemed crucial to its competitivenss. Kata Kunci: coal liquefaction, BCL, investment cost, sensitivity analysis, policy Strategy
IDENTIFIKASI TINGKAT REAKTIFITAS KATALIS DASAR BESI JENIS LIMONIT DAN PIRIT PADA PROSES PENCAIRAN BATUBARA Hanif, Muhammad; Hartiniati, Hartiniati
Jurnal Energi dan Lingkungan (Enerlink) Vol 2, No 1 (2006)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.166 KB)

Abstract

The effect of a highly dispersed limonite synthetic catalyst and natural pyritecatalyst on the liquefaction of Yallourn coal in relation to thetransformation into pyrrhotite (Fe1-x S) was examined and compared. Thestudy suggests that γ-FeOOH catalyst can be transformed into smallerpyrrhotite at lower temperatures around 250oC, and therefore promotes theactivation of gaseous hydrogen notably at the heating stage up to 450oC.Keeping H2S concentration at approximately 0.1vol% in the gas phase wasfound to be an effective way of maintaining the liquefaction activity of therecycle catalyst, due to the restraint of both troilite formation and theagglomeration of pyrrhotite. The study also demonstrates that a high oilyield over 60wt% daf can be obtained successfully in the coal liquefaction ofYallourn coal with the reduction of catalyst γ-Fe00H loading.Kata Kunci : pyrrhotite, troilite, coal liquefaction, pyrite
HYDROTREATMENT KATALITIK MINYAK RINGAN DENGAN KATALIS NiMo DAN PENGARUH SPESIES NITROGEN Murti, Sri Djangkung Sumbogo; Hartiniati, Hartiniati; Eliyanti, Agustina
Jurnal Energi dan Lingkungan (Enerlink) Vol 6, No 2 (2010)
Publisher : Jurnal Energi dan Lingkungan (Enerlink)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (453.507 KB)

Abstract

Gas Oil fraction of petroleum was hydrotreated (hydrodesulfurization, HDS) overNiMo/Al2O3 catalyst in a 100 ml autoclave reactor. The reaction was conducted at340 oC under 5MPa H2 pressure for 60 min. to investigate the correlation ofnitrogen species in the HDS. The inhibition effects of these species are alsoinvestigated by using original and its N-free gas oil. Hydrogen renewal betweenstages was attempted to reveal an additional effect of the by-products such asH2S. All species in the gas oils were analyzed by GC-AED before and afterhydrotreatment. HDS over NiMo/Al2O3 was largely improved by removal ofnitrogen species. Refractory sulfur species were effectively removed by theremoval of nitrogen species and renewal of hydrogen in staged HDS, showingsynergy effects due to simultaneous removal of two inhibitors.Kata kunci: gas oil, hydrodesulfurization, nitrogen inhibition, GC-AED

Page 2 of 33 | Total Record : 322

 1   2   3   4   5 

Filter by Year

2005 2020


Reset
Filter By Issues
All Issue Vol. 16 No. 2 (2020): Vol. 16 No 2 2020 Vol. 16 No. 1 (2020): Vol. 16 No 1 2020 Vol. 14 No. 2 (2018) Vol. 14 No. 1 (2018) Vol. 13 No. 2 (2017) Vol. 13 No. 1 (2017) Vol 11, No 2 (2015) Vol 11, No 2 (2015) Vol. 11 No. 2 (2015) Vol. 11 No. 1 (2015) Vol 11, No 1 (2015) Vol 11, No 1 (2015) Vol. 10 No. 2 (2014) Vol. 10 No. 1 (2014) Vol. 9 No. 1 (2013) Vol. 8 No. 2 (2012) Vol. 7 No. 2 (2011) Vol 7, No 1 (2011) Vol. 7 No. 1 (2011) Vol 7, No 1 (2011) Vol 6, No 2 (2010) Vol 6, No 2 (2010) Vol. 6 No. 2 (2010) Vol 6, No 1 (2010) Vol. 6 No. 1 (2010) Vol 6, No 1 (2010) Vol. 5 No. 2 (2009) Vol 5, No 2 (2009) Vol 5, No 2 (2009) Vol 5, No 1 (2009) Vol. 5 No. 1 (2009) Vol 5, No 1 (2009) Vol 4, No 2 (2008) Vol. 4 No. 2 (2008) Vol 4, No 2 (2008) Vol. 4 No. 1 (2008) Vol 4, No 1 (2008) Vol 4, No 1 (2008) Vol 3, No 2 (2007) Vol. 3 No. 2 (2007) Vol 3, No 2 (2007) Vol 3, No 1 (2007) Vol. 3 No. 1 (2007) Vol 3, No 1 (2007) Vol. 2 No. 2 (2006) Vol 2, No 2 (2006) Vol 2, No 2 (2006) Vol 2, No 1 (2006) Vol. 2 No. 1 (2006) Vol 2, No 1 (2006) Vol. 1 No. 2 (2005) Vol. 1 No. 1 (2005) More Issue