HEAVY OIL FROM CATALYTIC CRACKING OF POLYPROPYLENE-LOW DENSITY POLYETHYLENE PLASTIC WASTE PYROLYSIS OIL TO IMPROVE THE QUALITY OF LIGNITE

Lenny Marlinda; Mardhatillah; Raden Ilham; Rahmi; Muhammad Al Muttaqii

doi:10.30556/imj.Vol27.No2.2024.1544

Authors

Lenny Marlinda Jambi University https://orcid.org/0000-0001-6961-3815
Mardhatillah University of Jambi
Raden Ilham University of Jambi
Rahmi University of Jambi
Muhammad Al Muttaqii The National Research and Innovation Agency

DOI:

https://doi.org/10.30556/imj.Vol27.No2.2024.1544

Keywords:

lignite, heavy oil, PP/LDPE, slurry dewatering, moisture, calorific value

Abstract

The most obvious characteristics of lignite are its high moisture content (30-50%) and relatively low calorific value compared to other types of coal. This causes low combustion efficiency, making it not optimal for use as fuel. In this study, the slurry dewatering process was applied to coal that has a low calorific value of 3,662 cal/g and a moisture content of 37.29%. The addition effect of heavy oil from catalytic cracking of Polypropylene-Low Density Polyethylene (PP/LDPE) plastic waste pyrolysis oil on improving quality of lignite was investigated in this study. Heavy oil was used as additive. The ratio of 120 mesh lignite to heavy oil used was 100:15, 100:30, 100:45, 100:60, 100:75, and 100:90 (g/mL). Coal was carried out with a slurry dewatering process in an autoclave at various temperatures of 140 and 150 °C for 60 min. The test results obtained the highest calorific value of 6,374 cal/g and the moisture content of 2.81% for a ratio of lignite to heavy oil of 100: 45 g/mL at a temperature of 140 °C.

Author Biographies

Lenny Marlinda, Jambi University

Industrial Chemistry

Mardhatillah, University of Jambi

Department of Chemical Engineering

Raden Ilham, University of Jambi

Department of Chemical Engineering

Rahmi, University of Jambi

Department of Chemical Engineering

Muhammad Al Muttaqii, The National Research and Innovation Agency

Research Center for Chemistry

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