当前位置: X-MOL 学术J. Supercrit. Fluids › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Efficiency and energetic analysis of the production of gaseous green fuels from the compressed steam and supercritical water gasification of waste lube oils
The Journal of Supercritical Fluids ( IF 3.9 ) Pub Date : 2021-04-26 , DOI: 10.1016/j.supflu.2021.105267
Ana M. Sanchez-Hernandez , Nicolas Martin-Sanchez , M. Jesus Sanchez-Montero , Carmen Izquierdo , Francisco Salvador

The gasification of a waste lube oil (WLO), using water under vapor and supercritical states leads to its valorization into green fuels with high energetic power like H2 and CH4. This work investigates how the most important variables of a flow continuous gasification process, temperature, pressure and reaction time, influence the efficiency of gasification and the amounts and characteristics of the gases produced. The study of the influence of these variables on the energetic efficiency of the process was also completed. The highest production yields, 2.4 10−2 molH2 goil−1 and 3.0 10−2 molCH4 goil−1, were registered at supercritical water conditions (750 °C, 250 bar and 1.87 min). The energetic study revealed that the energetic efficiency increased as the reaction time was lengthened. Gasification kinetics were slower as pressure increased but the reaction times inside the flow reactor were longer. A pressure range from 150 bar, steam region, to 250 bar, supercritical region, was identified as optimal since allowed the most suitable balance between kinetics and the reaction times achieved.



中文翻译:

压缩蒸汽和废润滑油超临界水气化生产气态绿色燃料的效率和能量分析

使用处于蒸汽和超临界状态的水对废润滑油(WLO)进行气化可使其变成具有H 2和CH 4等高能的绿色燃料。这项工作研究了连续气化过程中最重要的变量,温度,压力和反应时间如何影响气化效率以及所产生气体的数量和特性。这些变量对过程能量效率的影响的研究也已完成。最高的产量,2.4 10 -2 mol H2  g-1和3.0 10 -2 mol CH4  g-1在超临界水条件(750  °C,250 bar和1.87 min)下记录。能量研究表明,随着反应时间的延长,能量效率提高。气化动力学随着压力的增加而变慢,但流动反应器内部的反应时间更长。从150 bar(蒸汽区域)到250 bar(超临界区域)的压力范围被确定为最佳,因为它可以在动力学和所达到的反应时间之间实现最合适的平衡。

更新日期:2021-05-02
down
wechat
bug