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Optimizing Bio-Oil Yield from Pyrolysis of Spent Bleaching Earth for Liquid Fuel Production

Rekayasa · Vol. 22 No. 1 (2024) · hlm. 1–10

DOI
10.15294/rekayasa.v20i2.10398
ISSN
2527-6964, 0216-6631
Terbit
2024-10-24
Penerbit
Universitas Negeri Semarang
Bahasa
eng

Abstrak

Spent Bleaching Earth is an industrial waste generated primarily from vegetable oil processing and contains 20-40% oil by weight, which poses a fire hazard due to the risk of spontaneous combustion. Commonly, Spent Bleaching Earth is processed using extraction methods with solvents like n-hexane, methanol, or steam. However, transforming SBE into liquid fuel via pyrolysis remains underexplored. This research aims to convert into liquid fuel through pyrolysis. The process was conducted at 600 °C for 90 min, resulting in pyrolysis oil with a density of 992.8 kg/m³, a viscosity of 31.21 cSt, a calorific value of 40.63 MJ/kg, and a flash point of 36 °C. Additionally, the oil contained 21.18% phenol compounds. The remaining material from the process, including char, constituted 54% of the original spent bleaching earth mass. These results demonstrate the feasibility of using pyrolysis to convert into a valuable liquid fuel, offering a sustainable approach to manage this hazardous industrial waste while producing energy-rich byproducts. This study underscores the potential of pyrolysis as a waste-to-energy solution and a safer alternative to traditional disposal methods for Spent Bleaching Earth.

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13 penulis · 23 tautan kepenulisan bersama · 7 lintas organisasi

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  • Sriwijaya University
  • Bandung Institute of Technology
  • Syarif Hidayatullah State Islamic University Jakarta
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Rekan penulisOrganisasiArtikel bersama
Aldes LesbaniSriwijaya University1
Amri AmriSriwijaya University1
Najma Annuria FithriSriwijaya University1
Herri SusantoBandung Institute of Technology1
Subagjo SubagjoBandung Institute of Technology1
Habibullah HabibullahSyarif Hidayatullah State Islamic University Jakarta1
Umiyati UmiyatiSyarif Hidayatullah State Islamic University Jakarta1
Rasiam RasiamSyarif Hidayatullah State Islamic University Jakarta1
Dimas Kenn SyahrirSyarif Hidayatullah State Islamic University Jakarta1
Muhammad TaufiqBandung Institute of Technology1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/rekayasa/oai, pertama di-harvest 6 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Optimizing Bio-Oil Yield from Pyrolysis of Spent Bleaching Earth for Liquid Fuel Production</dc:title>
	<dc:creator xml:lang="en">Okzani, Syahrial </dc:creator>
	<dc:creator xml:lang="en"> Said, Muhammad </dc:creator>
	<dc:creator xml:lang="en">Bahrin, David</dc:creator>
	<dc:subject xml:lang="en">extraction </dc:subject>
	<dc:subject xml:lang="en">n-hexane</dc:subject>
	<dc:subject xml:lang="en">energy</dc:subject>
	<dc:subject xml:lang="en">phenol</dc:subject>
	<dc:subject xml:lang="en">hazardous waste</dc:subject>
	<dc:description xml:lang="en">Spent Bleaching Earth is an industrial waste generated primarily from vegetable oil processing and contains     20-40% oil by weight, which poses a fire hazard due to the risk of spontaneous combustion. Commonly, Spent Bleaching Earth is processed using extraction methods with solvents like n-hexane, methanol, or steam. However, transforming SBE into liquid fuel via pyrolysis remains underexplored. This research aims to convert into liquid fuel through pyrolysis. The process was conducted at 600 °C for 90 min, resulting in pyrolysis oil with a density of 992.8 kg/m³, a viscosity of 31.21 cSt, a calorific value of 40.63 MJ/kg, and a flash point of 36 °C. Additionally, the oil contained 21.18% phenol compounds. The remaining material from the process, including char, constituted 54% of the original spent bleaching earth mass. These results demonstrate the feasibility of using pyrolysis to convert into a valuable liquid fuel, offering a sustainable approach to manage this hazardous industrial waste while producing energy-rich byproducts. This study underscores the potential of pyrolysis as a waste-to-energy solution and a safer alternative to traditional disposal methods for Spent Bleaching Earth.</dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2024-10-24</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/rekayasa/article/view/10398</dc:identifier>
	<dc:identifier>10.15294/rekayasa.v20i2.10398</dc:identifier>
	<dc:source xml:lang="en">Rekayasa; Vol. 22 No. 1 (2024); 1-10</dc:source>
	<dc:source>2527-6964</dc:source>
	<dc:source>0216-6631</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/rekayasa/article/view/10398/1763</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2024 Rekayasa : Jurnal Penerapan Teknologi dan Pembelajaran</dc:rights>
</oai_dc:dc>