CAJ | 학술논문

以CaO为催化剂,在热重分析仪上进行了恒温煤焦CO2催化气化试验,分析了煤焦的催化气化特性。研究表明：CaO的催化效果和 CaO 的添加方式有关,机械混合法添加 CaO 后催化效果不明显,浸渍法添加CaO后煤焦的气化反应性明显提高；随着 CaO 添加量的增大,煤焦气化反应性先升高后降低,CaO的添加饱和度为5％；较高的气化温度会削弱 CaO 的催化效果；先添加CaO后制焦所得煤焦的气化反应性要高于先制焦后添加CaO的煤焦。
이CaO위최화제,재열중분석의상진행료항온매초CO2최화기화시험,분석료매초적최화기화특성。연구표명：CaO적최화효과화 CaO 적첨가방식유관,궤계혼합법첨가 CaO 후최화효과불명현,침지법첨가CaO후매초적기화반응성명현제고；수착 CaO 첨가량적증대,매초기화반응성선승고후강저,CaO적첨가포화도위5％；교고적기화온도회삭약 CaO 적최화효과；선첨가CaO후제초소득매초적기화반응성요고우선제초후첨가CaO적매초。
Isothermal gasification of Huaidong coal char in CO2 atmosphere catalyzed by CaO was carried out on a thermogravimetric analyzer.The gasification performance of char with CaO catalytic action was inves-tigated.The results show that,the catalytic effect of CaO was related to its adding way.It was unconspicu-ous when the CaO was mechanically mixed,while the coal char's gasification reactivity sharply increased when the CaO was added by immersion method.With an increase in the CaO addition,the reactivity of coal char rose first and then deceased,the loading saturation level of CaO was 5%.The catalytic effect of CaO was weakened at high temperatures.The reactivity of coal char with CaO added before the char preparation was higher than that of the char with CaO added after the char formation.