Open AccessThe effect of plastic type on the yield and quality of lignite and plastic waste pyrolysis products
Author(s) -
Hesti Wijayanti,
Abubakar Tuhuloula,
Ligan Alfa Gumilang Subekti,
Mohd Saman Siti Aisyah,
I D Pitaloka,
Siti Nurmajidah
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1212/1/012017
Subject(s) - pyrolysis , char , heat of combustion , tar (computing) , materials science , waste management , coal , carbon fibers , decomposition , hydrogen , liquid fuel , thermal decomposition , chemical engineering , polystyrene , pulp and paper industry , chemistry , polymer , organic chemistry , composite material , combustion , composite number , engineering , programming language , computer science
Lignite is a low rank coal which has great potential in South Kalimantan. However, it has not been used optimally due to its low quality. One of the ways to improve it is pyrolysis. Pyrolysis is the thermal decomposition of organic material in the absence of oxygen which will produce three products (char, tar and gas). Pyrolysis can make lignite into liquid fuel (pyrolysis liquid), but it still requires improvement due to the need for pure hydrogen donors. Plastic waste has a higher hydrogen/carbon ratio than coal. This material can be used as an additive in the pyrolysis process because it is rich in hydrogen. The samples of plastic waste used were ppolyethylene (PE), ppolypropylene (PP), and polystyrene (PS). Samples of lignite and plastic (plastic composition was 25 wt%) were used for every experiment, and pyrolysis was carried out with a holding time of 60 minutes at 500°C. The pyrolysis liquid obtained is then analyzed for its yields and properties (density, kinematic viscosity, heating value). The most feasible result for fuel alternative was obtained with the addition of PE.