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STUDI KINETIKA PIROLISIS SEKAM PADI: PERBANDINGAN MODEL KINETIKA

Authors: Rinny Jelita; Hesti Wijayanti; Jefriadi Jefriadi;

STUDI KINETIKA PIROLISIS SEKAM PADI: PERBANDINGAN MODEL KINETIKA

Abstract

Abstrak: Peningkatan populasi dunia menuntut penambahan kebutuhan energi yang kian langka sehingga dibutuhkan sumber energi alternatif seperti bio oil. Sekam padi yang berupa limbah dapat diolah menghasilkan bio oil melalui proses pirolisis yang sederhana dan ramah lingkungan. Penelitian ini bertujuan mempelajari reaksi dekomposisi sekam padi pada proses pirolisis dan mendapatkan parameter kinetika yang terlibat dalam reaksi pirolisis sekam padi. Sekam padi dihaluskan dan diayak hingga berukuran 0,25-1 mm, dikeringkan menggunakan oven dengan suhu 80˚C selama 180 menit dan dimasukkan ke dalam reaktor pirolisis sebanyak 500 gram. Proses pirolisis berlangsung sejak suhu kamar hingga 1 jam setelah suhu tercapai, yaitu pada suhu 550oC. Asap yang terbentuk dikondensasikan, ditampung sebagai bio oil dan dicatat setiap 10 menit sejak tetesan pertama keluar hingga waktu pirolisis selesai. Berat bio oil yang dihasilkan digunakan untuk mensimulasikan perubahan massa sekam padi selama pirolisis berlangsung. Penentuan parameter kinetika dilakukan dengan membandingkan tiga model kinetika. Hasil penelitian menunjukkan bahwa pirolisis sekam padi berlangsung mengikuti mekanisme reaksi orde satu dengan parameter kinetika pre-exponensial faktor (A) 0,0347 s-1 dan energi aktivasi (E) 27,9517 kJ/mol. Parameter kinetika yang menghubungkan harga konstanta laju reaksi dengan suhu mengikuti persamaan Arhenius. Kata kunci: dekomposisi, kinetika, pirolisis, sekam padi 

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold