In-situ desulfurization performance of limestone purge from the calcium looping process during circulating fluidized bed combustion of coal in a 150kW_(th) pilot plant

机译：150kW_th中试煤循环流化床燃烧过程中钙环化过程清除石灰石的原位脱硫性能

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The possible utilization of highly calcined purge material derived from the Calcium-Looping process for in-situ desulfurization in coal-fired fluidized bed boilers was investigated experimentally in a pilot scale CFB at IFK, Stuttgart. Consistent desulfurization experiments under real CFBC conditions for both sorbents were successfully established by stable facility operation and the management of a steady bed composition. The desulphurization performance was analyzed by means of the sulfur capture efficiency and the bed ash composition. The sulfur capture performance of CaL purge was found to be significantly poorer at a given Ca/S molar ratios. This performance loss must be caused by the particle structure transformations along with the deactivation during CaL operation. Hence, larger streams of purge material would be necessary in order to reach efficient desulfurization in fluidized bed combustion chambers.

机译：在斯图加特IFK的中试规模CFB中，通过实验研究了源自钙环化工艺的高度煅烧的吹扫材料在燃煤流化床锅炉中进行原位脱硫的可能。通过稳定的设备操作和稳定床组成的管理，成功建立了在实际CFBC条件下两种吸附剂的一致脱硫实验。通过硫的捕集效率和床灰成分分析脱硫性能。发现在给定的Ca / S摩尔比下，CaL吹扫的硫捕获性能明显较差。这种性能损失必须由CaL操作过程中的颗粒结构转变以及失活引起。因此，为了在流化床燃烧室中实现有效的脱硫，将需要较大的吹扫材料流。

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《Clearwater clean coal conference;International technical conference on clean coal fuel systems》|2014年|263-271|共9页
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Theodor Beisheim; Gerrit Hofbauer; Heiko Dieter; Guenter Scheffknecht;
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4. In-situ desulfurization performance of limestone purge from the calcium looping process during circulating fluidized bed combustion of coal in a 150kW_(th) pilot plant [C] . Theodor Beisheim, Gerrit Hofbauer, Heiko Dieter, International Technical Conference on Clean Coal and Fuel Systems;Clearwater Clean Coal Conference . 2014

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In-situ desulfurization performance of limestone purge from the calcium looping process during circulating fluidized bed combustion of coal in a 150kW_(th) pilot plant

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