Spent Bleaching Earth (SBE) merupakan limbah B3 yang dihasilkan dari proses bleaching pembuatan minyak goreng. SBE memiliki kandungan minyak cukup tinggi yakni 20-40%. Pada penelitian ini akan dilakukan perolehan kembali minyak dalam SBE dengan metode pirolisis pada kondisi proses waktu satu jam, heating rate 10°C/min, tekanan N2 6 bar dan variasi suhu berdasarkan hasil Thermogravimetry Analiysis (TGA) pada bahan baku SBE adalah 300, 350, 400, 450, dan 500°C. Pada suhu 450°C merupakan suhu optimum dengan menghasilkan minyak sebesar 42,30%, hasil GC-MS berupa senyawa golongan asam karboksilat dan fenol, komposisi unsur C 2,7563%; H 10,7500%; N 0,0000%; dan O 86,4937%; nilai kalor 2,9006 MJ/kg; dan densitas 1,0167 g/mL Kata Kunci: Spent Bleaching Earth (SBE), Pirolisis, Thermogravimetry Analiysis (TGA), GC-MS.

Spent Bleaching Earth (SBE) is B3 waste produced from the bleaching process of making cooking oil. SBE has high oil content of 20-40% which has the potential to become bio-oil. In this research, oil recovery in SBE will be carried out by pyrolysis method at one hour processing conditions, heating rate 10°C/min, N2 6 bar pressure and temperature variations based on the results of Thermogravimetry Analiysis (TGA) on SBE raw materials are 300, 350, 400, 450 and 500°C. 450°C is optimum temperature to recovery 42.30% oil. GC-MS analysis results the form of carboxylic acid compounds and phenols with element composition of C 2,7563%; H 10,7500%; N 0,0000%; and O 86,4937%; highest heating value of 2,9006 MJ / kg; and a density of 1.0167 g / mL. Keywords: Spent Bleaching Earth (SBE), Pyrolysis, Thermogravimetry Analiysis (TGA), GC-MS.

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