Oil shale pyrolysis in indirectly heated fixed bed with internals under reduced pressure
Oil shale pyrolysis in indirectly heated fixed bed with internals under reduced pressure
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DOI：
10.1016/j.fuproc.2016.02.033
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发表时间：
2016-07
影响因子：
7.5
通讯作者：
Somprasong Siramard;Lanxin Lin;Chun Zhang;Dengguo Lai;Shuai Cheng;Guangwen Xu
中科院分区：
文献类型：
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作者：
Somprasong Siramard;Lanxin Lin;Chun Zhang;Dengguo Lai;Shuai Cheng;Guangwen Xu
我们以前的研究已经显示出油页岩热解在新设计的具有特别设计的内部构件的固定床反应器中的明显技术优势（燃料加工技术，138，2015：147-155）。在此基础上，进一步优化内构件固定床反应器的操作条件，以提高页岩油的产率和质量。与常压热解相比，降低热解压力可提高页岩油产率。由于降低反应压力而产生的这种影响在具有内构件的反应器中似乎比在没有任何内构件的反应器中更高。此外，在具有内部构件的反应器中存在更高的脂肪族组分产率和更少的芳香族物质，基本上表明在新反应器中对所产生的初级页岩油的二次反应被抑制。在该反应器中，页岩油产率达到Fisher测定产率（8.24重量%）的97.57%。干基）在1000 °C的炉加热温度下在减压条件下进行。因此，内构件与减压实际上存在一定的协同效应，采用内构件和真空条件可以使间热式固定床反应器在油页岩热解中获得高产优质页岩油的潜力很大。
Our previous studies have shown evident technical superiorities of oil shale pyrolysis in a newly devised fixed bed reactor with particularly designed internals (Fuel Processing Technology, 138, 2015: 147-155). This study is furthered to optimize the operating conditions by focusing on the reaction pressure to enhance the yield and quality of shale oil in the fixed bed reactor with internals. Reducing the pyrolysis pressure increased the shale oil yield in comparison with the pyrolysis under atmospheric pressure. This influence due to reducing reaction pressure appeared to be higher in the reactor with internals than in the reactor without any internals. Moreover, there were higher yield of aliphatic components and fewer aromatic species in the reactor with internals, essentially indicating the suppressed secondary reactions to the produced primary shale oil in the new reactor. In this reactor the shale oil yield reached 97.57% of the Fisher Assay yield (8.24 wt.% dry basis) at a furnace heating temperature of 1000 °C under reduced pressure conditions. Consequently, there is actually some synergistic effect between internals and reducing pressure so that adopting internals and using vacuum condition can grant the indirectly heated fixed bed reactor great potential to achieve high yield and high quality of shale oil in oil shale pyrolysis.