Biochar from Slow Catalytic Pyrolysis of Spirulina platensis Residue: Effects of Temperature and Silica-Alumina Catalyst on Yield and Characteristics

Jamilatun, Siti and Mufandi, Ilham and Budiman, Arief and suhendra, suhendra (2020) Biochar from Slow Catalytic Pyrolysis of Spirulina platensis Residue: Effects of Temperature and Silica-Alumina Catalyst on Yield and Characteristics. [Artikel Dosen]

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Abstract

The use of biochar varies on its ability as an adsorbent which absorbs liquid or gas molecules. Biochar from Spirulina platensis residue (SPR) as an energy source, as its richness in nutrients, can be used as fertilizer and maintain water resources in plantations. Biochar can be used as an intermediary for the synthesis of nanotubes, activated carbon, carbon black, and carbon fiber. One of the essential things to be considered in the application of activated carbon from SPR is char’s characteristics. This study aimed to obtain data on the obtained biochar and components from the pyrolysis of Spirulina platensis residue. The study was conducted in a fixed-bed reactor with electric heaters with a variety of temperatures (300-700 0C) and the amount of silica-alumina catalyst (0-20%). The biochar weight was obtained by weighing the char formed at the end of the pyrolysis. While, the char characteristics were obtained by the surface area, total pore volume, and pore size analysis. Based on the study results, the relationship between temperature and the amount of catalyst on the characteristics of biochar was studied, the higher the pyrolysis temperature, the less biochar. Also, the use of catalysts can reduce the amount of biochar. Conversely, the higher temperature, the higher the surface area, and the total pore volume and reduced the radius pore. The optimum condition for maximum biochar yield in non-catalytic pyrolysis at a temperature of 300 0C was 49.86 wt.%. Based on biochar characteristics, the surface area, total pore volume, and radius pore at 700 0C for catalytic pyrolysis 5% silica-alumina obtained 36.91 m2/g, 0.052 cm3/g, and 2.68 nm, respectively.

Item Type:	Artikel Dosen
Subjects:	T Technology > TP Chemical technology
Divisi / Prodi:	Faculty of Industrial Technology (Fakultas Teknologi Industri) > S1-Chemical Engineering (S1-Teknik Kimia)
Depositing User:	Dr., MT Siti Jamilatun
Date Deposited:	09 Feb 2021 07:48
Last Modified:	08 Jul 2022 02:36
URI:	http://eprints.uad.ac.id/id/eprint/22295

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