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All Journal Jurnal Kimia Terapan Indonesia LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Daliya Indra Setiawan
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology

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PENGARUH TEKANAN REAKTOR PADA PENGHIDRORENGKAHAN TAR BATUBARA Novie Ardhyarini; Daliya Indra Setiawan; Syntha Nardey
Jurnal Kimia Terapan Indonesia Vol 15, No 2 (2013)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5477.238 KB) | DOI: 10.14203/jkti.v15i2.111

Abstract

Coal gasificationproduce tar as aside-product. Coal tar is a complexmixture, and consists of various functionalgroups mainly polyaromatic compounds.Due to its chemical composition, coal taris categorized as hazardous material. Thephysical and chemical properties of coaltar is similar to crude oil, but it has higherpolyaromatics and impurities. Thoseproblems are the main challenges ofprocessing coal tar into fuel. Therefore, anupgrading process is required This paperdiscussed upgrading coal tar into fuel byhydrocracking in an autoclave reactorusing catalyst of nickel-molybdenum withalumina-silica support. Effect of reactorpressure was observed Hydrocrackingproduct at 450°C and 120bar showed thebest result where the HIC molar ratioincreased 26% and the specijic gravitydecreased 19%. The impurities of sulphurand nitrogen decreased 88,5% and 72%respectively. Hydrocracking productwasdistilled using a simulated distillation bygas chromatography. Based on simulateddistillation analysis, the product could befractionated into 2,2%vol of light end,33.8%vol of naphtha, and 48%vol ofmiddle distillate. These results showed thatcoal tar is potential to be processed intofuel. Furthermore, the utilization of coaltar can be a solution of waste treatment aswell.Keywords :Coal tar, waste, hydro cracking,autoclave reactor, fuel
PENGARUH TEMPERATUR REAKSI DAN TEKANAN HIDROGEN PADA PENGHIDRORENGKAHAN FRAKSI DISTILAT VAKUM TAR BATUBARA Novie Ardhyarini; Syntha Nardey; Daliya Indra Setiawan; Muh Kurniawan
Lembaran publikasi minyak dan gas bumi Vol 49 No 3 (2015)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.49.3.1198

Abstract

Penghidrorengkahan fraksi distilat vakum tar batubara dilakukan menggunakan katalis NiMo/Al2O3 -SiO2 dalam reaktor autoclave dengan sistem batch untuk menghasilkan bahan bakar minyak.Pengaruh temperatur reaksi (400 – 450o C) dan tekanan hidrogen awal (80-120 bar) pada sifat fifi sikadan kimia produk penghidrorengkahan diteliti. Sifat produk mengalami peningkatan mutu setelahpenghidrorengkahan dengan penurunan kadar pengotor (sulfur dan nitrogen) dan SG 60/60o F sertapeningkatan nilai rasio mol H/C. Kondisi percobaan pada temperatur 450 o C dan tekanan hidrogen120 bar memberikan hasil terbaik yaitu penurunan nilai SG 60/60o F, sulfur dan nitrogen dari 1,1127;0,39 % brt dan 1,75 %brt pada umpan menjadi 0,9154; 0,008% brt dan 0,54% brt pada produk. Rasiomol H/C mengalami peningkatan dari 1,18 pada umpan menjadi 1,52 pada produk. Fraksi-fraksiproduk penghidrorengkahan dipisahkan menggunakan simulasi distilasi dengan kromatografifi gas danhasilnya berupa fraksi nafta 22,7% vol dan fraksi distilat tengah 56,2% vol. Hasil ini memperlihatkanfraksi distilat vakum tar batubara dapat ditingkatkan mutunya melalui penghidrorengkahan dandidapatkan fraksi-fraksi lebih ringan yang berpotensi untuk digunakan sebagai bahan bakar minyakatau komponen blending bahan bakar minyak.
Co-Authors Dwi Endah Rachmawati LENI HERLINA Muh Kurniawan MUHAMMAD FUAD Novie ArdhyArini Novie Ardhyarini Rezky Iriansyah Anugrah Syntha Nardey