Pyrolysis in indirectly heated fixed bed with internals: The first application to oil shale
Pyrolysis in indirectly heated fixed bed with internals: The first application to oil shale
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DOI：
10.1016/j.fuproc.2015.05.023
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发表时间：
2015-10-01
影响因子：
7.5
通讯作者：
Xu, Guangwen
中科院分区：
文献类型：
--
作者：
Lin, Lanxin;Zhang, Chun;Xu, Guangwen
已经设计了具有特别设计的内部构件的间接加热固定床反应器以实现煤的先进热解性能（Energy & Fuels，28，2014：236-244）。该研究将反应器的应用范围扩展到油页岩，从而解决了常规固定床中页岩油收率低和页岩颗粒热效率低的问题。比较了不具有和具有特别设计的内部构件的实验室固定床的所生产的页岩油的产率和质量以及加热油页岩颗粒的速率。结果表明，使用内部构件使从加热的反应器壁加热反应器内的油页岩的效率加倍。将加热温度从600 ℃提高到1000 ℃，在具有内构件的床中，页岩油产率从9.50%提高到10.60%，并且达到Fischer分析的油产率（12.49wt.%）的84.9以干基计）。此外，页岩油保持其相对稳定的脂肪烃含量。在没有任何内部构件的床中，这样的温度升高使页岩油产率从9.53%急剧降低到4.60%。因此，具有内部构件的固定床也将是用于油页岩热解的先进反应器，其允许高工艺效率、高油产率和高油质量。(C)2015 Elsevier B. V.版权所有。
The indirectly heated fixed bed reactor with particularly designed internals has been devised to achieve advanced pyrolysis performance for coal (Energy & Fuels, 28,2014: 236-244). This study extends the application of the reactor to oil shale and thereby solves the problems of low shale oil yield and low heating efficiency to shale particles in conventional fixed beds. The yield and quality of the produced shale oil and the rate heating the oil shale particles were compared for laboratory fixed beds without and with the particularly designed internals. It was shown that the use of internals doubled the efficiency of heating the oil shale inside the reactor from the heated reactor wall. Raising the heating temperature from 600 degrees C to 1000 degrees C increased the shale oil yield from 9.50% to 10.60% in the bed with internals, and reached 84.9% of the oil yield of Fischer assay (12.49 wt.% in dry base). Furthermore, the shale oil maintained its relatively stable aliphatic hydrocarbon content. In the bed without any internals such a temperature rise sharply decreased the shale oil yield from 9.53% to 4.60%. Consequently, the fixed bed with internals would be an advanced reactor also for oil shale pyrolysis, which allows high process efficiency, high oil yield and high oil quality. (C) 2015 Elsevier B.V. All rights reserved.