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All Journal CHEMICA Jurnal Teknik Kimia
Adhi Chandra Purnama
Universitas Ahmad Dahlan
Chemical Engineering, Chemistry & Bioengineering Energy

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Pyrolysis of Spirulina platensis Residue: Effect of Temperature without and with Fe-oxide catalyst Siti Jamilatun; Tyas Aji Kurniawan; Adhi Chandra Purnama; Irfan Maulana Putra
CHEMICA: Jurnal Teknik Kimia Vol 7, No 2 (2020): Desember 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v7i2.18077

Abstract

The limited reserves of fuel must resolve immediately. One of the renewable energy solutions that have the potential to come from biomass sources is microalgae. The advantages of microalgae compared to other biomass is the oil produced, the speed of growth, and it does not interfere with food availability. The processing of residual Spirulina platensis microalgae (SPR) by pyrolysis is exciting to do, does not cause pollution, and the technology is simple. This study's purpose was SPR pyrolysis with a grain size of 140 mesh without and with five (5) wt.% Fe-oxide catalyst. The variables studied were temperature on the yield of bio-oil products, water phase, charcoal, and gas. Pyrolysis was carried out in a fixed bed reactor at 300, 400, 500, 550, and 600 ⁰C. The higher the pyrolysis temperature, the higher the bio-oil yield, with the optimum catalyst at 400 ⁰C produced 15.34% and without a catalyst at a temperature of 500 ⁰C, namely 15.00%. The water yield phase in the range of 300-600 ⁰C is higher for catalyst use (30-39 %) than without catalyst (13.75-22.25%). The higher the pyrolysis temperature, the lower the yield char. The yield of gas without a catalyst was higher in the range of 30.69-38.94% compared to catalyst 12.58-26.18%. At a temperature of 300 ⁰C without a catalyst, the conversion obtained was 48.69%, while with a catalyst, 60.08%
Co-Authors Irfan Maulana Putra Siti Jamilatun Tyas Aji Kurniawan