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首页> 外文期刊>Catalysis science & technology >Co-upgrading of biomass and plastic volatiles via metal-modified HZSM-5 coupled with NTP: deterioration and in situ recovery of the catalyst
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Co-upgrading of biomass and plastic volatiles via metal-modified HZSM-5 coupled with NTP: deterioration and in situ recovery of the catalyst

机译：Co-upgrading生物量和塑料挥发物通过metal-modified HZSM-5加上国家结核控制规划:恶化和原位恢复的催化剂

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摘要

Co-upgrading of biomass and plastic pyrolysis volatiles was conducted over metal-modified HZSM-5 coupled with NTP technology. Three aspects were investigated: (I) the effects of different metals (Ru, Mo, Ti, and Sn) on the organic yield and grade, active radicals and catalyst coking were analyzed, (II) the effects of plastic to biomass ratios on coking characteristics were evaluated, and (III) in situ regeneration of the spent catalyst by NTP was conducted and the performance of the regenerated catalyst was evaluated. The results showed that Mo and Ti modifications had a stronger promotion effect on the formation of active radicals, increasing the organic yield and fuel-grade obviously, and the metal modified versions coupled with NTP had more advantages in anti-coking. Graphite carbon increased with the increase of the plastic proportion, showing that co-upgrading synergized with NTP broke through the limitation of plastic proportion. Although dehydrogenated carbon and graphite-like carbon co-existed, the textural properties of the spent catalyst were better retained in a higher plastic proportion. Lower temperature led to insufficient activation of coke and precursors, while higher temperature intensified the elimination effect of plasma, and the coked catalyst could be regenerated at a lower temperature and in a shorter time. The properties of the spent catalyst were efficiently recovered, and reutilization of the regenerated catalyst was effective by comparison. This study laid the experimental and theoretical foundations of catalyst deterioration and provided a new cycle method for sustainability.
机译：Co-upgrading生物量和塑料热解在metal-modified挥发物进行HZSM-5加上国家结核控制规划技术。调查:(I)的影响不同金属(俄文、钼、钛、和Sn)对有机产量炼焦和品位,活性自由基和催化剂的影响进行了分析,(II)塑料生物量比率炼焦特性评估,(III)的原位再生国家结核控制规划进行,废催化剂再生催化剂的性能评估。修改有较强的促进作用活性自由基的形成,增加有机产量和燃油等级明显,金属加上国家结核控制规划有更多的修改版本优势在抗结焦。增加了塑料的增加比例,表明co-upgrading主体性国家结核控制规划突破限制的塑料比例。graphite-like碳共存的结构废催化剂的性能更好保留在塑料比例更高。温度导致激活不足可口可乐和前兆,而温度较高加强等离子体的消除效果焦化催化剂可以再生一个较低的温度和在更短的时间。废催化剂的特性是有效的回收和重复利用的再生催化剂被比较有效。奠定了实验和理论基础并提供了一种新的催化剂恶化循环可持续性的方法。

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