ARTICLE
TITLE

Thermal Energy Conversion in Making Biochar from Jengkok Tobacco Waste Using Pyrolysis Extrusion Model

SUMMARY

Proses pirolisis mempunyai banyak model dengan karakteristik dan spesifikasi yang berbeda. Masing-masing model memberikan nilai konversi yang berbeda pada penggunaan temperatur, waktu dan bahan baku yang digunakan. Limbah Jengkok Tembakau yang berbahaya karena kandungan Arsen (As) akan dimanfaatkan menjadi produk biochar yang mempunyai nilai ekonomis dan strategis melalui proses pirolisis model extrusion. Tujuan dari penelitian ini adalah menentukan konversi thermal (% Yield) proses pirolisis bahan limbah jengkok tembakau menjadi biochar terhadap temperatur dan waktu proses yang optimal. Variabel yang ditentukan terdiri dari temperatur proses (400, 450, 500, 550, dan 600°C) dan waktu proses (30, 35, dan 40 menit). Produk hasil proses akan dilakukan analisa statistik menggunakan uji korelasi rank spearman dan dilanjut dengan minitab untuk menghasilkan nilai optimal. Hasil penelitian menunjukkan bahwa nilai konversi thermal pada proses pembuatan biochar dengan bahan baku limbah jengkok tembakau adalah sebesar 29,476% (»30%) pada temperatur proses 500°C dan waktu proses 30 menit.The pyrolysis process has many models with different characteristics and specifications. Each model provides a different conversion value depending on the temperature value, length of time, and the number of raw materials used. Jengkok Tobacco waste was dangerous because it contains Arsenic (As), and was used as a biochar product with economic and strategic value through the extrusion model pyrolysis process. The purpose of this study was to determine the thermal conversion value (yield percentage) of the pyrolysis process of tobacco waste material into biochar at the optimal temperature and processing time. The specified variables consist of process temperatures (400, 450, 500, 550, and 600°C) and processing times (30, 35, and 40 minutes). The product of the process will be analyzed statistically using the Spearman rank correlation test and followed by Minitab to produce the optimal value. The results showed that the thermal conversion value in making biochar was 29.476% (»30%) at a process temperature of 500°C and a processing time of 30 minutes.

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