Steam reforming of toluene and naphthalene as tar surrogate in a gliding arc discharge reactor
Steam reforming of toluene and naphthalene as tar surrogate in a gliding arc discharge reactor
复制标题
在滑动电弧放电反应器中作为焦油替代物的甲苯和萘的蒸汽重整
DOI：
10.1016/j.jhazmat.2019.01.085
复制
发表时间：
2019
影响因子：
13.6
通讯作者：
Tu Xin
中科院分区：
文献类型：
--
作者：
Zhang Hao;Zhu Fengsen;Li Xiaodong;Xu Ruiyang;Li Li;Yan Jianhua;Tu Xin
Steam reforming of mixed toluene and naphthalene as tar surrogate has been investigated in an AC gliding arc discharge plasma, with particular emphasis on better understanding the effect of steam and CO2on the reaction performance. Results show that H2, C2H2and CO are the major gas products in the plasma steam reforming of tar for energy recovery. The addition of a small amount of steam remarkably enhances the conversions of both toluene and naphthalene, from 60.4% to 76.1% and 57.6% to 67.4%, respectively, asradical dotOH radicals formed by water dissociation create more reaction pathways for the conversion of toluene, naphthalene and their fragments. However, introducing CO2to this process has a negative effect on the tar reforming. Optical emission spectroscopic diagnostics has shown the formation of a variety of reactive species in the plasma process. Trace amounts of monocyclic and bicyclic aromatic condensable by-products are also detected. The destruction of toluene and naphthalene can be initiated through the collisions of tar surrogates with energetic electrons, N2excited species,radical dotOH and O radicals etc. Further optimization of the plasma tar destruction is still needed because the complexity of the tar component in a practical gasifier could decrease the tar conversions.
