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All Journal Jurnal Energi dan Lingkungan (Enerlink) Jurnal Ilmiah Teknik Kimia
Dwiratna, Bralin
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Chemical Engineering, Chemistry & Bioengineering Chemistry Energy

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PENGEMBANGAN KATALIS BERBASIS NIMO ALUMINA UNTUK REAKSI HIDRODEOKSIGENASI MINYAK NABATI MENJADI BIOAVTUR Dwiratna, Bralin; Soebagjo, Soebagjo
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 (1442.843 KB) | DOI: 10.29122/elk.v11i2.1580

Abstract

Catalysts NiMoP/?-Al O -B O have been successfully synthesized by impregnation method. The 2 3 2 3catalyst was developed to process of vegetable oil hydrodeoxygenation (HDO). The effect of theaddition of boron and phosphorus on the activity and selectivity was studied in this research . Inaddition , the determination of appropriate operating conditions were also studied in order to obtainproducts with good conversion and selectivity. The research was conducted on the preparation of thehydrodeoxygenation catalyst , test the activity and selectivity of hydrodeoxygenation catalysts, andcatalysts characterization using BET , XRD and AAS . To determine the performance of the catalyst ,the hydrodeoxygenation catalysts were tested their activity and selectivity which took place in a batchreactor at a pressure of 20-60 bar and a temperature of 320-360 ° C. The composition of products wereanalyzed by using a Gas Cromatography . From the implementation of HDO reaction of vegetable oilwith NiMoP( 0.6 % )/?- Al O - B O (1.7 %) catalyst, the value of conversion obtained was 81.45 % at 60 2 3 2 3o bar operating pressure conditions and temperature 360 C .Keywords: vegetable oil , hidrodeoksigenasi , catalyst Nimo - ?alumina
KOH Activated-Biochar from Oil Palm Solid Wastes Via Pyrolysis for Energy Storage Application Murti, Galuh Wirama; Rahmawati, Nurdiah; Valentino, Novio; Hikmat, Hikmat; Firmandoko, Bagus Alif; Dwiratna, Bralin; Bangun, Herson; Prasetyo, Joni
Jurnal Ilmiah Teknik Kimia Vol. 8 No. 1 (2024): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v8i1.37710

Abstract

As the leading exporter of the oil palm in the world, Indonesia has an environmental issue regarding to the increasing oil palm solid wastes. In order to utilize this lignocellulosic wastes into an inexpensive supply of carbon-based material, biochar from empty fruit bunch (EFB), palm kernel shell (PKS), oil palm frond (OPF), and oil palm trunk (OPT) was produced via slow pyrolysis with KOH as activation agent. The slow pyrolysis was conducted with a temperature of 600oC, a heating rate of 10oC/min, held for 30 min, and atmospheric pressure. This study examines the physico-chemical characterization of all oil palm solid wastes and biochars by using ultimate analysis, water and ash content, Fourier Transform Infrared (FTIR) spectrometer, surface area using Brunauer-Emmet-Teller (BET), and surface morphology using Scanning Electron Microscope (SEM). The higher biochar yields were obtained by PKS and EFB with 30% and 35.79% which have a higher ash content, lignin content, and residual solid char. OPT and PKS biochars exhibit high surface area (467.49 m2/g and 386.85 m2/g) with a high carbon content of 75.64% and 70.22%, respectively. Electrochemical performances of OPT and PKS biochar were also evaluated and the cyclic voltammogram showed the response of current to potential. The results of OPT and PKS biochars had shown a promising raw materials as bio-carbon black which have a well-developed structure of morphology, high surface area, and high carbon content.  
Co-Authors Bangun, Herson Firmandoko, Bagus Alif Hikmat Hikmat, Hikmat Joni Prasetyo, Joni Murti, Galuh Wirama Rahmawati, Nurdiah Soebagjo, Soebagjo Valentino, Novio