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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
PROSES DESULFURISASI SECARA OKSIDATIF (ODS) MENGGUNAKAN KATALIS TI-MCM-41 Slamet Handoko; Syntha Nardey
Lembaran Publikasi Minyak dan Gas Bumi Vol. 49 No. 2 (2015): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Selama ini, proses Hydrodesulphurization (HDS) sebagai unit pengurangan kadar sulfur yangada di kilang belum mampu menghilangkan sulfur bermolekul besar seperti diBenzothiophenedan derivatifnya seperti 4,6-dimethydiBenzothiophene (4,6-DMDBT).
PENGARUH TEMPERATUR REAKSI DAN TEKANAN HIDROGEN PADA PENGHIDRORENGKAHAN FRAKSI DISTILAT VAKUM TAR BATUBARA Novie Ardhyarini; Syntha Nardey; Daliya Indra Setiawan Indra Setiawan; Muh Kurniawan
Lembaran Publikasi Minyak dan Gas Bumi Vol. 49 No. 3 (2015): LPMGB
Publisher : BBPMGB LEMIGAS

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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 – 450oC) dan tekanan hidrogen awal (80-120 bar) pada sifat fi sikadan kimia produk penghidrorengkahan diteliti.