金属铁盐辅助稠油多环芳烃对CO水热变换新生氢富存研究

Polycyclic aromatic hydrocarbons aided with iron salts hydrogenation by using in situ hydrogen generated through the CO water gas shift reaction

以蒽为稠油多环芳烃模型化合物,考察了不同条件下蒽对CO水热变换新生氢的富存影响,并对CO水热变换和蒽储氢之间的协同效应进行了分析。研究表明,Fe(NO_3)_3·9H_2O和环烷酸铁对蒽富存CO水热变换新生氢均有催化作用,Fe(NO_3)_3·9H_2O的作用效果更好。随着反应温度、CO初始压力和加入的Fe(NO_3)_3·9H_2O中铁含量的增加,CO转化率和蒽储氢效率均呈现逐渐增大的趋势。CO初压2 MPa,Fe(NO_3)_3·9H_2O中铁的质量分数为0.08%时,对蒽储氢反应较为适宜,储氢效率较高。蒽储氢可对CO变换产生的新生氢进行富存,从而消耗新生氢,进而促进CO水热变换反应。因此,蒽储氢与CO水热变换反应之间存在正协同效应,二者相互促进。

The effect of anthracene hydrogenation with CO water gas shift as a model for polycyclic aromatic hydrocarbons under different conditions was investigated,and the synergistic effect between anthracene hydrogenation and WGSR(water gas shift reaction)was also analyzed.The results showed that Fe(NO_3)_3·9 H_2O and iron naphthenate are catalytic active for anthracene hydrogenation with CO water gas shift,but Fe(NO_3)_3·9 H_2O is the better one.The conversion of CO water gas shift and anthracene hydrogenation increase with the increasing of CO initial pressure,reaction temperature and the concentration of Fe in Fe(NO_3)_3·9 H_2O.The conversion of anthracene hydrogenation is substantial when the concentration of Fe in Fe(NO_3)_3·9 H_2O is 0.08 wt% and CO initial pressure is 2 MPa.Anthracene hydrogenation consumed H_2 generated from WGSR to promote WGSR,so there is apositive synergy between anthracene hydrogenation and WGSR.