The aim of this study was the syngas production by the gasification of plastic waste (polyethylene, polypropylene and terephthalate polyethylene). Ca, Ce, La, Mg and Mn were used to promote the Ni/ZSM-5 catalyst in order to enhance the production of higher syngas yield. The modified catalysts can enhanced the reaction rate of the pyrolysis process and resulting in high syngas in the product yields. Especially cerium, lanthanum promoted catalysts can enhance the yield of syngas. The effect of the reaction temperature and nitrogen/oxygen ratio of the carrier gas was also investigated. The maximum syngas production was obtained with lanthanum catalyst (112.2 mmol/g (95%N₂ and 5%O₂), and 130.7 mmol/g (90%N₂ and 10%O₂) at 850 °C. Less carbon depositions was found at 850 °C or even by the using of catalyst and more oxygen in the carrier gas. The oxygen content of the pyrolysis-gasification atmosphere had a key role to the syngas yield and affects significantly the carbon-monoxide/carbon-dioxide ratio. Catalysts can also accelerate the methanization reactions and isomerize the main carbon frame. Increasing in both temperature and oxygen in the atmosphere led to higher n-paraffin/n-olefin ratio and more multi-ring aromatic hydrocarbons in pyrolysis oils. The concentration of hydrocarbons containing oxygen and branched compounds was also significantly affected by catalysts.

这项研究的目的是通过塑料废物（聚乙烯，聚丙烯和对苯二甲酸乙二酯）的气化生产合成气。Ca，Ce，La，Mg和Mn用于促进Ni / ZSM-5催化剂，以提高更高的合成气收率。改性催化剂可以提高热解过程的反应速率，并导致产物收率较高的合成气。尤其是铈，镧促进的催化剂可以提高合成气的收率。还研究了反应温度和载气氮氧比的影响。用镧催化剂（112.2 mmol / g（95％N ₂和5％O ₂）和130.7 mmol / g（90％N ₂和10％O ₂）获得最大合成气）在850°C下。在850°C或什至通过使用催化剂和载气中更多的氧气发现更少的碳沉积。热解气化气氛中的氧含量对合成气的产率具有关键作用，并且显着影响一氧化碳/二氧化碳的比率。催化剂还可以加速甲烷化反应并使主碳骨架异构化。大气中温度和氧气的增加导致热解油中正链烷烃/正烯烃的比率增加，以及更多的多环芳烃出现。含氧和支链化合物的烃的浓度也受到催化剂的显着影响。