Catalyst deactivation and regeneration during CO2 reforming of bio-oil

Catalyst deactivation and regeneration during CO2 reforming of bio-oil
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生物油 CO2 重整过程中催化剂的失活和再生

DOI:
10.1016/j.ijhydene.2019.02.156
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发表时间:
2019-04
影响因子:
7.2
通讯作者:
Yan Yongjie
Yan Yongjie
中科院分区:
工程技术2区
文献类型:
--
作者:
Xu Qingli;Feng Peng;Qi Wei;Huang Kai;Xin Shanzhi;Yan Yongjie

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研究了生物油CO2重整反应过程中催化剂的失活和再生。XRD、TG和SEM分析结果表明,催化剂失活是积炭和烧结的综合作用。催化剂表面存在无定形碳和丝状碳,但无定形碳是催化剂的主要碳产物,是催化剂失活的主要原因。水蒸气再生催化剂的活性和稳定性上级CO2和空气再生催化剂,但水蒸气再生过程消耗大量的水蒸气,增加了生产成本。空气再生法易使催化剂中心烧结。CO2再生工艺不仅可以产生有用气体(C + CO2= 2CO),而且可以很好地利用温室气体,具有工业应用的前景。但随着催化剂使用周期的增加,催化剂在CO2重整过程中的活性和稳定性会逐渐降低。
Catalyst deactivation and regeneration during CO2reforming of bio-oil were researched in this paper. The results of XRD, TG and SEM analyses showed that the catalyst deactivation was a combination of carbon deposition and sintering. There were amorphous carbon and filamentous carbon on the catalyst surface, but amorphous carbon was the main carbon product, which was the main reason for the catalyst deactivation. The activity and stability of steam regeneration catalyst is superior to that of CO2and air regeneration catalyst, but steam regeneration process will consume much quantity of steam, which can be increased production cost. Air regeneration method is easy to sinter the center of catalyst. CO2regeneration process not only produces useful gases (C + CO2= 2CO), but also makes good use of greenhouse gases, which has an industrial application prospect. However, with the cycle of catalyst increasing, the activity and stability catalyst will decrease gradually during the CO2reforming process.
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