Waste plastics-to-fuel using fly ash catalyst  

作　　者：Bijoy Kumar Mondal Falguni Guha MdNurul Abser 

机构地区：[1]Department of Chemistry,Jahangirnagar University,Savar,Dhaka,Bangladesh [2]Department of Biochemistry and Microbiology,North South University,Dhaka,Bangladesh

出　　处：《Waste Disposal and Sustainable Energy》2021年第1期13-30,共17页废弃物处置与可持续能源（英文）

基　　金：This work was supported by the National Science Fund for Distinguished Young Scholars(No.51825605).

摘　　要：Suitable disposal pathways of waste plastics and coal fly ash have yet not been established which is a matter of great envi-ronmental concern.Waste low-density polyethylene(LDPE)and high-density polyethylene(HDPE)were degraded using a semi-batch reactor along with acid or alkali modified fly ash catalyst.The high yield of liquid fuel product(about 87.24 wt%)was achieved for low-density polyethylene at a polymer and catalyst ratio of 25 w/w.About 96%conversion was found with very few amount of gaseous fuels.Both of the waste plastics were degraded at 400-450℃.The liquid products were analyzed using Fourier-transform infrared spectroscopy(FTIR),nuclear magnetic resonance(^(1)H,^(13)C,and DEPT-135 NMR),and gas chromatography-mass spectrometry(GC-MS).Fly ash is an efficient catalyst to degrade waste plastic into light weight liquid(gasoline and kerosene)hydrocarbons.The NMR results accompanied by GC-MS data ensure that obtained fuels contain both aliphatic(saturated and unsaturated)and aromatic hydrocarbons.This plastic-to-fuel technology should be commercialized owing to be profitable and eco-friendly.

关 键 词：Solid waste Catalytic pyrolysis Liquid fuels 

分 类 号：X705[环境科学与工程—环境工程]