STUDI PENGARUH KONSENTRASI UMPAN GLISEROL PADA PROSES PEMURNIAN TRIASETIN BERBASIS CHEMCAD
DOI:
https://doi.org/10.30872/cmg.v4i1.4076Abstract
Gliserol merupakan produk samping dari biodiesel yang dihasilkan dari proses transesterifikasi. Melalui reaksi esterifikasi gliserol dengan asam asetat akan membentuk triasetin. Triasetin merupakan bahan baku terbarukan serta ramah lingkungan yang dapat meningkatkan nilai oktan dan anti-knocking pada mesin mobil. Gliserol merupakan bahan baku utama yang dapat mempengaruhi kemurnian produk triasetin. Pengaruh konsetrasi umpan gliserol dalam penelitian ini bertujuan untuk meningkatkan kemurnian triasetin. Kemurnian produk triasetin minimal 99,8% di tetapkan dalam penelitian ini. Untuk mendapatkan triasetin dengan kemurnian dan jumlah yang tinggi dapat dilakukan dengan mempertimbangkan konsentrasi umpan gliserol pada simulasi ChemCAD. Simulasi dilakukan dengan mengutamakan penentuan konsentrasi gliserol pada aliran feed tank dengan melakukan trial mulai konsentrasi 90%. Hasil yang di dapatkan semakin tinggi konsentrasi gliserol akan dihasilkan jumlah produk triasetin yang semakin banyak, namun semakin tinggi konsentrasi gliserol akan di dapatkan produk triasetin dengan kemurnian rendah. Sehingga dari simulasi yang telah dilakukan konsentrasi gliserol optimum adalah 99% dan jumlah produk triasetin sebesar 2339 kg/jam dengan kemurnian 99,94%.
Kata Kunci : ChemCAD, Feed Tank, Gliserol, Triasetin
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