Pyrolysis-plasma/catalytic reforming of post-consumer waste plastics for hydrogen production
Pyrolysis-plasma/catalytic reforming of post-consumer waste plastics for hydrogen production
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DOI：
10.1016/j.cattod.2023.114084
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发表时间：
2023-05-24
期刊：
影响因子：
5.3
通讯作者：
Williams, Paul T.
中科院分区：
文献类型：
--
作者：
Aminu, Idris;Nahil, Mohamad A.;Williams, Paul T.
不同类型的单一废塑料和一系列来自不同工业和商业来源的实际混合废塑料在热解-等离子体/催化实验反应器系统中进行了处理，以生产氢气。热解阶段产生的碳氢化合物在低温非热等离子体/催化反应器中进行催化（Ni/MCM-41）蒸汽重整。聚烯烃塑料、高密度聚乙烯、低密度聚乙烯和聚丙烯的产氢率最高，分别为18.0、17.3和16.3 mmol g（塑料）（-1）。芳香族结构聚苯乙烯的产氢率较低，为11.9 mmol g（塑料）（-1），而具有芳香族和氧合结构的聚对苯二甲酸乙二醇酯的产氢率仅为10.2 mmol g（塑料）（-1），碳氧化物气体的产率很高。现实世界的混合塑料废物产生的氢气产量在13.4-16.9 mmol g（塑料）（-1）之间。矿物瓶包装废弃物产氢量最低，为13.4 mmol g（塑料）（-1），这是由于塑料废弃物混合物中聚对苯二甲酸乙二醇酯含量高所致。
Different types of single waste plastics and a range of real-world mixed waste plastics from several different industrial and commercial sources have been processed in a pyrolysis-plasma/catalytic experimental reactor system for the production of hydrogen. The hydrocarbons produced from the pyrolysis stage were catalytically (Ni/MCM-41) steam reformed in a low temperature, non-thermal plasma/catalytic reactor. The polyolefin plastics, high density polyethylene, low density polyethylene and polypropylene produced the highest yield of hydrogen at 18.0, 17.3 and 16.3 mmol g(plastics)(-1) respectively. The aromatic structured polystyrene produced a lower hydrogen yield of 11.9 mmol g(plastics)(-1) and polyethylene terephthalate with an aromatic and oxygenated structure produced only 10.2 mmol g(plastics)(-1) and a high yield of carbon oxide gases. The real-world mixed plastic waste produced yields of hydrogen in the range of 13.4-16.9 mmol g(plastics)(-1). The lowest hydrogen yield of 13.4 mmol g(plastics)(-1) was produced from the mineral water bottle packaging waste due to the high content of polyethylene terephthalate in the plastic waste mixture.