Study on the Capture of Gaseous KCl by Cellulose Char
Study on the Capture of Gaseous KCl by Cellulose Char
复制标题
纤维素炭捕集气态KCl的研究
DOI：
10.1021/acs.energyfuels.8b03533
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发表时间：
2018-12
期刊：
影响因子：
5.3
通讯作者：
Yao Qiang
中科院分区：
文献类型：
--
作者：
Xu Wen ting;Song Qiang;Zhao Hai bo;Zhuo Jian kun;Yao Qiang
生物质热利用过程中钾的释放会导致结垢、结渣等技术问题，而释放的钾可能被生物质焦重新捕获。为了避免生物质焦中无机元素的影响，本研究以纤维素焦为原料。在双层固定床反应器中，在900-1000 °C下考察了纤维素焦对气态KCl的捕集。通过对不同时间捕获后的焦炭样品的分析，获得了时间捕获模式，并分析了捕获K的稳定性和关联性。纤维素焦表现出显着的能力，捕获气态氯化钾。焦炭吸附的钾含量起初迅速增加，随着时间的推移而降低，最终达到0。随着温度从900 °C升高到1000 °C，固钾饱和含量从4.1%增加到5.5%，达到饱和的速度加快。不同热解程度半焦的捕集能力相同。K/Cl比值和土壤pH值的变化对土壤的pH值有一定的影响。
The release of K during thermal utilization of biomass can cause fouling, slagging, and other technical problems, while released K might be recaptured by biomass char. In this work, cellulose char was used as a raw material to avoid the effects of inorganic elements in biomass char. The capture of gaseous KCl by cellulose char was examined at 900–1000 °C in a double-layer fixed-bed reactor. The temporal capture pattern was obtained on the basis of an analysis of char samples after capture for different durations, and the stability and association of captured K were analyzed. Cellulose char showed a remarkable ability to capture gaseous KCl. The increase in the K content captured by the char was rapid at first, decreased with time, and eventually reached 0. With the temperature increasing from 900 to 1000 °C, the saturated content of captured K increased from 4.1 to 5.5% and reached saturation more rapidly. The capture abilities of char with different pyrolysis degrees were identical. The K/Cl ratio and sc...
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影响因子：
7.4
作者：
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通讯作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
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影响因子：
5.3
作者：
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