Catalytic Pyrolysis of Waste Plastic Mixture

Quality in Research: International Symposium on Materials, Metallurgy, and Chemical Engineering

材料科学;冶金学;化学工业

Sembiring, Ferdianta^1 ; Purnomo, Chandra Wahyu^1,3 ; Purwono, Suryo^2

Advanced Materials and Mineral Processing Research Group, Indonesia^1

Energy and Environment Research Group, Chemical Engineering Dept., Universitas Gadjah Mada, Jalan Grafika no 2, Yogyakarta

55281, Indonesia^2

Renewable Energy and Waste Utilization Division PIAT UGM, Berbah Sleman Yogyakarta Indonesia, Indonesia^3

关键词: Catalytic pyrolysis;    Inorganic fractions;    Municipal solid waste (MSW);    Natural zeolites;    Operating temperature;    Polyethylene terephthalates (PET);    Recycling facilities;    Waste plastic;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/316/1/012020/pdf
DOI  :  10.1088/1757-899X/316/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Inorganic waste especially plastics still become a major problem in many places. Low biodegradability of this materials causes the effort in recycling become very difficult. Most of the municipal solid waste (MSW) recycling facilities in developing country only use composting method to recover the organic fraction of the waste, while the inorganic fraction is still untreated. By pyrolysis, plastic waste can be treated to produce liquid fuels, flammable gas and chars. Reduction in volume and utilization of the liquid and gas as fuel are the major benefits of the process. By heat integration actually this process can become a self-sufficient system in terms of energy demand. However, the drawback of this process is usually due to the diverse type of plastic in the MSW creating low grade of liquid fuel and harmful gases. In this study, the mixture of plastics i.e. polypropylene (PP) and polyethylene terephthalate (PET) is treated using pyrolysis with catalyst in several operating temperature. PET is problematic to be treated using pyrolysis due to wax-like byproduct in liquid which may cause pipe clogging. The catalyst is the mixture of natural zeolite and bentonite which is able to handle PP and PET mixture feed to produce high grade liquid fuels in terms of calorific value and other fuel properties.