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Waste Disposal & Sustainable Energy
Waste Disposal & Sustainable Energy  2021, Vol. 3 Issue (1): 13-19    DOI: 10.1007/s42768-020-00058-5
    
基于飞灰催化的废塑料制燃料
Waste plastics-to-fuel using fly ash catalyst
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摘要： 作为一个非常值得关注的环境问题，废塑料和粉煤灰的适宜处置仍未建立。在半间歇式反应器中，以酸/碱改性的粉煤灰作为催化剂催化降解废弃的低密度聚乙烯（LDPE）和高密度聚乙烯（HDPE）。在LDPE与催化剂质量比为25:1下，得到了高的液体燃料产率（约87.24wt%）。伴随少量的气体产物，废塑料的转化率达到了96%。两种废弃塑料都在400-450℃之间降解。对液体产物进行了傅里叶变换红外光谱（FTIR）、核磁共振（1H，13C和DEPT-135NMR）和气相色谱质谱联用（GC-MS）分析。对于废塑料降解为轻质液体碳氢化合物（汽油和煤油）而言，粉煤灰是一种高效的催化剂。NMR和GC-MS分析结果表明，得到的液体产物中含有脂肪烃（饱和和不饱和）和芳香烃。基于粉煤灰催化废塑料生成液体燃料的技术是环保和盈利的，值得商业化推广。
Abstract: Suitable disposal pathways of waste plastics and coal fly ash have yet not been established which is a matter of great environmental 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?°C. The liquid products were analyzed using Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H,?13C, 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.
出版日期: 2021-06-27
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Bijoy Kumar Mondal
Falguni Guha & Md. Nurul Abse

引用本文:

Bijoy Kumar Mondal, Falguni Guha & Md. Nurul Abse. Waste plastics-to-fuel using fly ash catalyst. Waste Disposal & Sustainable Energy, 2021, 3(1): 13-19.

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https://www.zjujournals.com/wdse/CN/10.1007/s42768-020-00058-5    或    https://www.zjujournals.com/wdse/CN/Y2021/V3/I1/13

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