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CeO2 and La2O3 Promoters in the Steam Reforming of Polyolefinic Waste Plastic Pyrolysis Volatiles on Ni-Based Catalysts
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-11-09 , DOI: 10.1021/acssuschemeng.0c06800 Aitor Arregi 1 , Mehrdad Seifali Abbas-Abadi 2 , Gartzen Lopez 1, 3 , Laura Santamaria 1 , Maite Artetxe 1 , Javier Bilbao 1 , Martin Olazar 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-11-09 , DOI: 10.1021/acssuschemeng.0c06800 Aitor Arregi 1 , Mehrdad Seifali Abbas-Abadi 2 , Gartzen Lopez 1, 3 , Laura Santamaria 1 , Maite Artetxe 1 , Javier Bilbao 1 , Martin Olazar 1
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Based on the promising results of La2O3- and CeO2-promoted Ni/Al2O3 catalysts in the reforming of biomass pyrolysis volatiles, the performance of these catalysts and the non-promoted one was evaluated in the pyrolysis and in-line steam reforming of polypropylene (PP). The experiments were carried out in a continuous bench scale pyrolysis-reforming plant using two space times of 4.1 and 16.7 gcat min gplastic–1 and a steam/PP ratio of 4. The prepared catalysts and the deposited coke were characterized by N2 adsorption–desorption, X-ray fluorescence (XRF), X-ray diffraction (XRD), temperature-programmed oxidation (TPO), and transmission electron microscopy (TEM). The Ni/Al2O3 catalyst showed suitable performance regarding pyrolysis product conversion and hydrogen production and led to moderate coke deposition. It is to note that La2O3 incorporation remarkably improved catalyst performance compared to the other two catalysts in terms of conversion (>99%), hydrogen production (34.9%), and coke deposition (2.24 wt %).
中文翻译：
镍基催化剂上聚烯烃废塑料热解挥发物蒸汽重整中的CeO 2和La 2 O 3促进剂
基于La 2 O 3-和CeO 2促进的Ni / Al 2 O 3催化剂在生物质热解挥发分的重整中的有希望的结果，评估了这些催化剂和非助催化剂在热解和气相色谱中的性能。聚丙烯（PP）的在线蒸汽重整。实验是在连续的台式规模的热解重整装置中进行的，使用两个空间时间分别为4.1和16.7 g cat min g塑料–1，蒸汽/ PP比为4。制备的催化剂和沉积的焦炭的特征在于N 2吸附-解吸，X射线荧光（XRF），X射线衍射（XRD），程序升温氧化（TPO）和透射电子显微镜（TEM）。Ni / Al 2 O 3催化剂在热解产物转化和产氢方面表现出合适的性能，并导致适度的焦炭沉积。要注意的是，与其他两种催化剂相比，结合La 2 O 3的催化剂的转化率（＞ 99％），氢气产生（34.9％）和焦炭沉积（2.24wt％）显着提高。
更新日期：2020-11-23
中文翻译：
镍基催化剂上聚烯烃废塑料热解挥发物蒸汽重整中的CeO 2和La 2 O 3促进剂
基于La 2 O 3-和CeO 2促进的Ni / Al 2 O 3催化剂在生物质热解挥发分的重整中的有希望的结果，评估了这些催化剂和非助催化剂在热解和气相色谱中的性能。聚丙烯（PP）的在线蒸汽重整。实验是在连续的台式规模的热解重整装置中进行的，使用两个空间时间分别为4.1和16.7 g cat min g塑料–1，蒸汽/ PP比为4。制备的催化剂和沉积的焦炭的特征在于N 2吸附-解吸，X射线荧光（XRF），X射线衍射（XRD），程序升温氧化（TPO）和透射电子显微镜（TEM）。Ni / Al 2 O 3催化剂在热解产物转化和产氢方面表现出合适的性能，并导致适度的焦炭沉积。要注意的是，与其他两种催化剂相比，结合La 2 O 3的催化剂的转化率（＞ 99％），氢气产生（34.9％）和焦炭沉积（2.24wt％）显着提高。
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