PEMANFAATAN SAMPAH PLASTIK LDPE DAN PET MENJADI BAHAN BAKAR MINYAK DENGAN PROSES PIROLISIS
DOI:
https://doi.org/10.32493/jitk.v1i2.718Keywords:
Kata Kunci, pirolisis, LDPE, PET, densitas, viskositasAbstract
ABSTRAK
Pirolisis sampah plastik merupakan proses dekomposisi senyawa organik yang terdapat dalam plastik melalui pemanasan tanpa oksigen. Pada proses pirolisis senyawa hidrokarbon rantai panjang diubah menjadi senyawa hidrokarbon yang lebih pendek dan dijadikan bahan bakar alternatif. Penelitian ini bertujuan untuk mengetahui perbandingan hasil volume yang diperoleh dari LDPE dan PET, dan mengetahui hasil kualitas bahan bakar minyak yang dihasilkan dari LDPE dan PET. Pirolisis sampah plastik ini dilakukan dengan umpan yaitu sampah plastik jenis LDPE (Low Density Polyethylene) dan sampah plastik jenis PET (Polyethylene Terephthalate). Proses pirolisis dilakukan pada reaktor selama 2 jam dengan suhu 250oC dan tekanan 2 bar dengan umpan sebanyak 1 kg. Hasil minyak pirolisis dari LDPE diperoleh sebanyak 525 mL sedangkan pada dari PET diperoleh sebanyak 368.47 mL. Densitas minyak hasil pirolisis LDPE dan PET mendekati nilai densitas dari minyak tanah. Viskositas minyak hasil pirolisis dengan bahan LDPE dan PET termasuk ke dalam jenis minyak tanah, Nilai kalor minyak hasil pirolisis dengan bahan LDPE mendekati nilai kalor dari minyak diesel sedangkan nilai kalor minyak hasil pirolisis dengan bahan PET mendekati nilai kalor minyak tanah. Untuk nilai titik nyala tidak bisa dibandingkan dengan standar karena keterbatasan alat dan untuk nilai titik api tidak ada standar baku mutunya.
Kata Kunci: pirolisis, LDPE, PET, densitas, viskositas
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