新型含硼季铵盐对焦炭热态性能的改善研究

Effect of Boron Quaternary Ammonium Salt on Improving Coke Thermal Property

以含硼季铵盐(N-甲基溴代十二烷基二乙醇胺硼酸酯)作为新型焦炭劣化抑制剂,考察其对焦炭的热态性能改善影响,并对焦炭结构和形貌进行表征,初步探讨了含硼季铵盐改善焦炭热态性能的机理。结果表明:喷洒含硼季铵盐溶液后焦炭热态性能指标得到明显改善,1.0%的含硼季铵盐能使焦炭反应性CRI降低8.69%,反应后强度CSR提高7.94%,焦炭表面积、气孔直径和深度显著减小,减弱了二氧化碳对焦炭的侵蚀劣化作用,这为改善焦炭性能指标开拓了新途径。

The effect of spraying boron quaternary ammonium salt（which was as a new type deterioration inhibitor） on coke thermal property was investigated.The structure and morphology of coke were scanned for explaining boron quaternary ammonium salt＇s inhibition mechanism to coke by SEM.The results indicate that the coke reactivity index（CRI） is decreased by 8.69% and the coke strength after reaction（CSR） is improved by 7.94% when spraying 1.0% boron quaternary ammonium salt on coke samples.The SEM scanning results show that the coke surface pore diameter and the depth decrease,this helps to reduce CO2 to erode coke.