CAJ | 학술논문

采用以低杂质沥青焦模拟石油焦和外掺杂的方式，研究硫杂质元素对焦反应性的影响，并通过XRD、SEM和EDS等检测手段探讨其作用机理。结果表明：在无其他杂质元素干扰的情况下，硫实际上是一种对焦的空气和CO2反应性都具有明显催化性的杂质元素。其催化作用可能是通过在焦的空气和CO2反应过程中分别引发有机硫→H2S→SO2→COS和单质硫(Sx)→SO2和有机硫→H2S→COS→Sx→C2S→COS两组可部分循环并具有增加碳耗和增大焦比表面积作用的反应体系来实现的。
채용이저잡질력청초모의석유초화외참잡적방식，연구류잡질원소대초반응성적영향，병통과XRD、SEM화EDS등검측수단탐토기작용궤리。결과표명：재무기타잡질원소간우적정황하，류실제상시일충대초적공기화CO2반응성도구유명현최화성적잡질원소。기최화작용가능시통과재초적공기화CO2반응과정중분별인발유궤류→H2S→SO2→COS화단질류(Sx)→SO2화유궤류→H2S→COS→Sx→C2S→COS량조가부분순배병구유증가탄모화증대초비표면적작용적반응체계래실현적。
Effect of sulfur impurity on coke reactivity was investigated by simulating petroleum coke with low-impurity pitch coke and impurities doping. And its mechanism was discussed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS). The results show that sulfur has strong catalysis on both air and CO2 reactivity of coke in the case of no other impurity interference. Its catalysis is probably realized by triggering organic sulfur→H2S→SO2→COS and elemental sulfur (Sx)→SO2 and organic sulfur→H2S→COS→Sx→C2S→COS reaction systems during coke?O2 and coke?CO2 reactions, respectively, which are partly circular with functions of increasing carbon consumption and enlarging coke specific surface area.