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首页> 外文期刊>Catalysis science & technology >Coked Ni/Al2O3 from the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene: preparation, identification and application as a potential adsorbent
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Coked Ni/Al2O3 from the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene: preparation, identification and application as a potential adsorbent

机译：焦化Ni /催化重整的氧化铝从co-pyrolysis木质素和挥发物聚乙烯:准备、识别和应用程序作为一个潜在的吸附剂

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摘要

A novel and eco-friendly C-Ni/Al2O3 composite was prepared through Ni/Al2O3 coking during the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene. The influence of Ni loading (0-20%) in the Ni/Al2O3 catalyst and catalytic reforming temperature (500-800 degrees C) on the characteristics of the C-Ni/Al2O3 composite was investigated, involving the analysis of SEM, XRD, TPO and FTIR. Fibrous carbon on the C-Ni/Al2O3 composite was produced by the catalyst Ni(10%)/Al2O3 at reforming temperatures of 600 and 700 degrees C, which was oxidized at around 500 degrees C according to the TPO analysis. The maximum deposition of carbon in the C-Ni(10%)/Al2O3 composite was about 10.86%, achieved at a catalytic reforming temperature of 700 degrees C. Abundant oxygen-containing functional groups were observed on the C-Ni/Al2O3 composite through the FTIR analysis, leading to the outstanding adsorption performance for pollutant removal from aqueous systems. The optimal C-Ni/Al2O3 composite was selected to investigate the effect of process conditions on the adsorption performance for Pb(ii), Cr(vi), rhodamine B (RhB) and methyl orange (MO). The adsorption isotherms for the four mentioned pollutants were well fitted by the Langmuir model and the maximum adsorption amount for Pb(ii), Cr(vi), RhB and MO was estimated to be 223.52, 54.90, 290.76 and 95.71 mg g(-1), respectively. The results indicated that the as-prepared C-Ni/Al2O3 composite had potential for the removal of heavy metal ions and hazardous organic compounds from aqueous systems.
机译：小说和环保C-Ni /氧化铝复合准备通过Ni /氧化铝炼焦过程中催化重整的挥发物co-pyrolysis木质素和聚乙烯。倪加载的影响(0 - 20%)Ni /氧化铝催化剂和催化重整的温度(500 - 800摄氏度)的特点C-Ni /氧化铝复合研究,涉及XRD, SEM分析房产申诉专员署和红外光谱。碳C-Ni /氧化铝复合生产由催化剂镍(10%)/氧化铝在改革600和700摄氏度的温度在500摄氏度根据氧化房产申诉专员署分析。C-Ni(10%) /氧化铝复合是10.86%左右,在催化重整的温度来实现700度c丰富的含氧官能团观察C-Ni /氧化铝通过红外光谱分析复合,导致优秀的吸附性能从水系统污染物去除。选择最优C-Ni /氧化铝复合研究工艺条件的影响铅的吸附性能(ii)、铬(vi),罗丹明B (RhB)和甲基橙(MO)。4提到的吸附等温线污染物被朗缪尔模型好安装和Pb (ii)的最大吸附量,铬(vi)、RhB和莫估计为223.52,54.90、290.76和95.71毫克g(1),分别。结果表明,做好准备C-Ni /氧化铝复合有潜力去除重金属离子和有机有害化合物从水系统。

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