碱金属碱土金属对神府煤焦气化活性的影响

樊文克 崔童敏 李宏俊 常清华 郭庆华 于广锁 王辅臣

引用本文: 樊文克, 崔童敏, 李宏俊, 常清华, 郭庆华, 于广锁, 王辅臣. 碱金属碱土金属对神府煤焦气化活性的影响[J]. 燃料化学学报, 2016, 44(08): 897-903. shu
Citation:  FAN Wen-ke, CUI Tong-min, LI Hong-jun, CHANG Qing-hua, GUO Qing-hua, YU Guang-suo, WANG Fu-chen. Effect of AAEM on gasification reactivity of Shenfu char[J]. Journal of Fuel Chemistry and Technology, 2016, 44(08): 897-903. shu

碱金属碱土金属对神府煤焦气化活性的影响

    通讯作者: 王辅臣
  • 基金项目:

    国家自然科学基金(21376079,21376081)资助 

摘要: 利用热重法和X射线衍射法,研究了神府煤热解焦CO2气化过程中,碱金属碱土金属(AAEM)催化剂对气化活性和微晶结构的影响。比较了负载方式(先热解后负载和先负载后热解)、催化剂种类(Na、K、Ca)以及催化剂添加量(金属原子质量分数1%、3%、5%)的影响。结果表明,对碱金属催化剂,先热解后负载焦样的反应活性比先负载后热解的更好,而碱土金属负载方式对活性的影响则相反;Na和K的催化能力相接近,且两者都比Ca强;煤焦气化活性随AAEM负载量的增加而增强。负载AAEM催化剂均能抑制煤焦石墨化进程,其中,K的抑制作用最强,Ca的抑制作用最弱;抑制作用随添加量增加而增强。

English

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  • 收稿日期:  2016-03-31
  • 网络出版日期:  2016-05-17
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