摘要
将一定浓度的劣化抑制剂均匀负载于焦炭表面,考察其对焦炭热态性能的影响,以优选抑制剂,并用SEM对焦炭结构和形貌进行表征,初步探讨其抑制机理.结果表明:负载抑制剂后焦炭热态性能明显改善,反应性CRI降低,反应后强度CSR提高,且随着浓度的递增,改善效果呈增加趋势.BP复合抑制效果最佳且成本较低.SEM结果表明,劣化抑制后焦炭表面气孔直径和深度减小呈封闭状态,减少了CO2对焦炭的侵蚀作用;BP抑制剂可覆盖或取代焦炭溶损反应的活性点,使焦炭对溶损反应的抵制能力增强.
The influences of some deterioration inhibitors on the CRI and CSR of coke were investigated to optimize the best deterioration inhibitor and to discuss its inhibition mechanism to coke by SEM.It was found that the thermal performances of coke such as CRI and CSR were improved obviously after inhibition.The more inhibitor loaded,the higher thermal performance improved.In the complex inhibitors,BP compound has relatively broad application value because of its best inhibition effect and lower cost than the others.SEM scanning results show that the surface of coke and its porosity decreased,space appeared smaller and isolation after inhibition,this helps to reduce CO2 to coke erosion.BP compound may cover or replace the dissolution of coke so that coke can resist the reaction of carbon dioxide.
出处
《河南教育学院学报（自然科学版）》
2010年第3期18-20,共3页
Journal of Henan Institute of Education(Natural Science Edition)
基金
河南省重大公益科研项目(081100911800)
