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首页> 外文期刊>Environmental Science & Technology >pray Water Reactivation/Pelletization of Spent CaO-based Sorbent from Calcium Looping Cycles
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pray Water Reactivation/Pelletization of Spent CaO-based Sorbent from Calcium Looping Cycles

机译：从钙循环循环中对CaO基废吸水剂进行水活化/制粒

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摘要

reactivation of spent CaO-based sorbents from calcium looping (CaL) cycles for CO_2 capture. A spent Cadomin limestone-derived sorbent sample from a pilot-scale fluidized bed (FBC) CaL reactor is used for reactivation. The calcined sorbent is sprayed by water in a pelletization vessel This reactivation method produces pellets ready to be used in FBC reactors. Moreover, this procedure enables the addition of calcium aluminate cement to further enhance sorbent strength. The characterization of reactivated material by nitrogen physisorption (BET, BJH) and scanning electron microscopy (SEM) confirmed the enhanced morphology of sorbent particles for reaction with CO_2. This improved CO_2 carrying capacity was demonstrated in caldnation/carbonation tests performed in a thermogravimetric analyzer (TGA). Finally, the resulting pellets displayed a high resistance to attrition during fluidization in a bubbling bed.
机译：从钙环（CaL）循环中重新激活用过的基于CaO的吸附剂以捕获CO_2。来自中试流化床（FBC）CaL反应器的废Cadomin石灰石衍生的吸附剂样品用于重新活化。将煅烧的吸附剂在制粒容器中用水喷雾。这种再活化方法可制备出可用于FBC反应器的粒料。而且，该程序使得能够添加铝酸钙水泥以进一步提高吸附强度。通过氮物理吸附（BET，BJH）和扫描电子显微镜（SEM）对重新活化的材料进行表征，证实了与CO_2反应的吸附剂颗粒形态得到了增强。在热重分析仪（TGA）中进行的煅烧/碳化测试中证明了这种提高的CO_2承载能力。最后，所得的颗粒在鼓泡床中流化过程中显示出高的耐磨耗性。

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  • 来源
    《Environmental Science & Technology》 |2012年第22期|12720-12725|共6页
  • 作者

    Vasilije Manovic; Yinghai Wu; Ian He; Edward J. Anthony;

  • 作者单位

    CanmetENERGY, Natural Resources Canada, 1 Haanel Drive, Ottawa, Ontario, Canada K1A 1M1;

    CanmetENERGY, Natural Resources Canada, 1 Haanel Drive, Ottawa, Ontario, Canada K1A 1M1;

    CanmetENERGY, Natural Resources Canada, 1 Haanel Drive, Ottawa, Ontario, Canada K1A 1M1;

    CanmetENERGY, Natural Resources Canada, 1 Haanel Drive, Ottawa, Ontario, Canada K1A 1M1;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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