Steam reforming of toluene, a model tar compound, was carried out at low temperature of 600 °C using Cu–Ni and Fe–Ni bimetallic catalysts with different molar ratios supported on activated carbon (AC). For the Cu–Ni/AC catalysts, the carbon conversion of toluene rose and then decreased with the content of Cu increasing, and the best performance was achieved at the molar ratio of 0.2. However, the Fe–Ni/AC catalyst with the optimum composition of Fe/Ni = 0.1 had a better catalytic performance for toluene steam reforming than the Cu–Ni/AC catalyst (Cu/Ni = 0.2). During the duration test of 20 h, the Fe–Ni/AC (Fe/Ni = 0.1) catalyst showed higher activity for the average carbon conversion of toluene (93.8% vs. 92.9%) and better resistance. to carbon deposition than those of Ni/AC catalyst. Moreover, the metal average sizes of the spent Ni/AC and 0.1-Fe–Ni/AC were estimated to be 30.0 nm and 19.0 nm, respectively. Based on a variety of physiochemical characterization results, it is demonstrated that the addition of iron into Ni/AC catalyst led to good dispersion of Ni, and few coke formation and limited aggregation of nickel particles during reaction.

甲苯（一种典型的焦油化合物）的蒸汽重整是在600°C的低温下使用活性炭（AC）负载的具有不同摩尔比的Cu-Ni和Fe-Ni双金属催化剂进行的。对于Cu-Ni / AC催化剂，甲苯的碳转化率随Cu含量的增加先升后降，在0.2的摩尔比下可获得最佳性能。但是，具有最佳组成的Fe / Ni = 0.1的Fe–Ni / AC催化剂对甲苯蒸汽重整的催化性能要比Cu–Ni / AC催化剂（Cu / Ni = 0.2）更好。在20小时的持续时间测试中，Fe-Ni / AC（Fe / Ni = 0.1）催化剂对甲苯的平均碳转化率表现出更高的活性（93.8％对92.9％）和更好的耐受性。与Ni / AC催化剂相比，在碳沉积方面的优势更大。而且，废Ni / AC的金属平均尺寸为0。1-Fe-Ni / AC分别估计为30.0 nm和19.0 nm。基于各种物理化学表征结果，表明在Ni / AC催化剂中添加铁导致Ni良好的分散，并且在反应期间几乎没有焦炭形成和有限的镍颗粒聚集。