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All Journal PROSIDING SEMINAR KIMIA JURNAL ATOMIK
R.R Dirgarini Julia Nurlianti Subagyono
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science

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Journal : PROSIDING SEMINAR KIMIA

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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 SPIRULINA PLATENSIS PADA SUHU 400˚C Nela Gamboa Rodriques; R.R Dirgarini Julia Nurlianti Subagyono; Abdul Aziz
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

This study aims to investigate the slow pyrolysis of Spirulina platensis using a laboratory-scale reactor. The slow pyrolysis was conducted at 400°C for 60 minutes. The results showed that the bio-oil yield obtained was 9%. Gas Chromatography-Mass Spectrometry (GC-MS) analysis revealed that the dominant compounds in the bio-oil were hexadecanoic acid, N-Tetradecanoic Acid Amide, 1H-Indole and Phenol,4-Methyl, which are degradation products of lipids and proteins. Keywords: Spirulina platensis, slow pyrolysis, bio-oil, temperature, chemical composition
Co-Authors Abdul Aziz Anisa Anggraeni Mohd. Asyraf Kassim Nela Gamboa Rodriques Noor Hindryawati Widya Rachmah Sari