Destruction of gasification tar over Ni catalysts in a modified rotating gliding arc plasma reactor: Effect of catalyst position and nickel loading
Destruction of gasification tar over Ni catalysts in a modified rotating gliding arc plasma reactor: Effect of catalyst position and nickel loading
复制标题
改进的旋转滑移弧等离子体反应器中镍催化剂对气化焦油的破坏：催化剂位置和镍负载量的影响
DOI：
10.1016/j.fuel.2020.119742
复制
发表时间：
2020-11
期刊：
影响因子：
7.4
通讯作者：
Li Xiaodong
中科院分区：
文献类型：
--
作者：
Xu Ruiyang;Kong Xiangzhi;Zhang Hao;Ruya Petric Marc;Li Xiaodong
以甲苯为焦油替代物，采用改进的旋转滑动弧等离子体反应器，在Ni/γ-Al 2 O3催化剂的作用下，对垃圾气化焦油进行了水蒸气重整反应。该系统的性能进行了评估方面的焦油转化率，能源效率，产率的产品气体，以及等离子体催化的协同能力，特别注意的效果，比能量输入（SEI），定位的催化剂，和Ni负载的催化剂。采用N2吸附-脱附、XRD、H2-TPR、TEM等手段对催化剂进行表征。将催化剂放置在离阳极足够远的地方增加了甲苯转化率，这表明等离子体和催化剂之间对于焦油转化的协同作用。当催化剂与阳极之间的距离为62 mm时，甲苯转化率可达91.9%，比单独等离子体系统中的转化率高21%。当Ni负载量从4%增加到16%时，甲苯转化率可进一步增加到94.7%。等离子体催化的协同能力通过提高甲苯转化率和增加H2、CO和CH 4等增值燃料气体的形成，同时选择性减少CO2的形成来证明，特别是当Ni负载量为4%和8%时。液体副产物的鉴定还揭示了等离子体和催化剂之间的协同作用，其将双自由基HC双键CH转化为气态产物，从而抑制茚和萘的形成。
In this study, a modified rotating gliding arc (RGA) plasma reactor with fan-shaped swirl generator coupled with Ni/γ-Al2O3catalyst was investigated for the steam reforming of gasification tar from waste materials, taking toluene as the tar surrogate. The system performance was evaluated in terms of tar conversion, energy efficiency, yield of product gas, as well as synergistic capability of plasma catalysis, with particular attention on the effects of specific energy input (SEI), positioning of the catalysts, and Ni loading of catalysts. Different characterizations of catalysts including N2adsorption-desorption, XRD, H2-TPR, and TEM were conducted to study the properties of catalysts. Incorporation of catalyst placed sufficiently far from the anode increased toluene conversion which indicated the synergy between plasma and catalysis for tar conversion. A toluene conversion of up to 91.9% can be achieved with a distance of 62 mm between the catalyst and the anode, which was 21% higher than that in the plasma alone system. The toluene conversion can be further increased to 94.7% when the Ni loading was increased from 4% to 16%. The synergistic capability of plasma catalysis was demonstrated from an enhanced toluene conversion and the increased formation of value-added fuel gases such as H2, CO, and CH4, together with simultaneously a selective reduction in CO2formation, especially when the Ni loading was 4% and 8%. Identification of liquid by-products also revealed the synergy between plasma and catalysis which transformed bi-radical HCdouble bondCH into gaseous products, prohibiting the formation of indene and naphthalene.
登录
查看更多内容
催化剂孔隙中可以形成等离子体吗？
影响因子：
22.1
作者：
Zhang Yu-Ru;Van Laer Koen;Neyts Erik C.;Bogaerts Annemie
通讯作者：
Bogaerts Annemie
影响因子：
5.3
作者：
A. Pilatau;H. S. Medeiros;A. S. S. Sobrinho-A.-S.-S.-Sobrinho-144133432;G. P. Filho
通讯作者：
A. Pilatau;H. S. Medeiros;A. S. S. Sobrinho-A.-S.-S.-Sobrinho-144133432;G. P. Filho
不同方法合成的橄榄石负载Ni-Fe合金催化剂苯酚和萘水蒸气重整对比研究
影响因子：
10.4
作者：
Meng Junguang;Zhao Zengli;Wang Xiaobo;Zheng Anqing;Zhang Dongyan;Huang Zhen;Zhao Kun;Wei Guoqiang;Li Haibin
通讯作者：
Li Haibin
影响因子：
4.6
作者：
M. Młotek;Joanna Woroszył;B. Ulejczyk;K. Krawczyk
通讯作者：
M. Młotek;Joanna Woroszył;B. Ulejczyk;K. Krawczyk
N-2 旋转滑翔弧暖等离子体中甲烷的等离子体活化产氢：化学动力学研究
影响因子：
15.1
作者：
Zhang Hao;Wang Weizong;Li Xiaodong;Han Long;Yan Mi;Zhong Yingjie;Tu Xin
通讯作者：
Tu Xin