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Mohd. Asyraf Kassim
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Chemistry

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STUDI PIROLISIS OFF-GRADE RUBBER DENGAN KATALIS Ni/Ga-SBA-15 MENGGUNAKAN ANALISIS TERMOGRAVIMETRI PADA LAJU PEMANASAN 10°C/MENIT Anisa Anggraeni; R.R Dirgarini Julia Nurlianti Subagyono; Mohd. Asyraf Kassim
PROSIDING SEMINAR KIMIA Vol 4 No 1 (2025): Prosiding SNK 2025
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

A study of off-grade rubber pyrolysis with Ni/Ga-SBA-15 catalyst using thermogravimetric analysis has been conducted. This study aims to determine the thermal decomposition process of off-grade rubber pyrolysis with Ni/Ga-SBA-15 catalyst using thermogravimetric analysis at a heating rate of 10°C/min. The pyrolysis decomposition temperature of off-grade rubber was divided into three stages, namely water evaporation at a temperature of ≤147°C, active pyrolysis at a temperature of ±147-454°C, and passive pyrolysis at a temperature of ≥454°C. Keywords: Thermogravimetric analysis, Ni/Ga-SBA-15 catalyst, Off-grade rubber
PIROLISIS LAMBAT OFF-GRADE RUBBER DENGAN REAKTOR PIROLISIS SEMI-KONTINYU PADA SUHU 200 oC Mutiara Pertiwi; RR Dirgarini Julia Nurlianti Subagyono; Ari Susandy Sanjaya; Mohd. Asyraf Kassim
PROSIDING SEMINAR KIMIA Vol 4 No 1 (2025): Prosiding SNK 2025
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Off-grade Rubber is a by-product from rubber industries that has potential as a renewable energy raw material. This study aims to determine the results of slow pyrolysis of off-grade rubber at a temperature of 200 oC using a laboratory-scale semi-continuous pyrolysis reactor for 30 minutes. The off-grade rubber had a moisture content of 23.62 ± 2.26% and an ash content of 11.24 ± 1.09%. The bio-oil yield and the aqueous phase yield at 200 oC were 0.27% and 2.1%, respectively. Chemical compound analysis using Gas Chromatography-Mass Spectrometry (GC-MS) showed five dominant compounds, namely glyceroltriethylether, 3,3-dimethyl-1-oxa-3-silacycloheptanone-7, 1-methylethyl heptanoate, 1-methyl-1-ethoxy-1-silacyclopentane, and heptanoic acid, 1-methylethyl ester. Keywords: Bio-oil, off-grade Rubber, Slow Pyrolysis
Co-Authors Anisa Anggraeni Ari Susandy Sanjaya, Ari Susandy Mutiara Pertiwi R.R Dirgarini Julia Nurlianti Subagyono RR Dirgarini Julia Nurlianti Subagyono