Molten metal capillary reactor for the high-temperature pyrolysis of methane
Molten metal capillary reactor for the high-temperature pyrolysis of methane
复制标题
用于甲烷高温热解的熔融金属毛细管反应器
DOI：
10.1016/j.ijhydene.2016.12.044
复制
发表时间：
2017
影响因子：
7.2
通讯作者：
D. W. Agar
中科院分区：
文献类型：
--
作者：
A. A. Munera Parra;D. W. Agar
在这项工作中，提出了段塞流状态下熔融金属毛细管反应器的进一步发展。甲烷在 1300 °C 和 9 Nml/min 下高温热解的初步结果显示，计算转化率为 80%，平均停留时间为 1.36 秒。由于积碳、气体分离困难和段塞流不稳定，有必要重新设计系统。为此，对几种合金进行了测试，以寻求改善的润湿性和更有利的流体动力学。描述了修改后的实验装置，该装置改进了气体分离，但段塞流的稳定性不够。最后，介绍了当前的实验设置。在那里，使用镓、铟和锡的低温合金 GaInSn 进行流体动力学表征，并且为各种气体和液体流建立了稳定的规则段塞流。段状流中薄膜的存在仍然受到质疑，关于该项目方向的结论是针对替代反应器系统或进一步的流体动力学研究。
In this work, the further development of the molten metal capillary reactor in slug-flow regime is presented. The preliminary results from the high-temperature pyrolysis of methane at 1300 °C and 9 Nml/min are presented with a calculated conversion of 80%, and, a mean residence time of 1.36 s. Due to carbon deposition, difficult gas separation and unstable slug-flow, it was deemed necessary to redesign the system. For that, several alloys were tested looking for improved wettability and more favorable hydrodynamics. The modified experimental set-up is described, which led to improvements in gas separation, but not enough stability in the slug-flow. Finally, the current experimental set-up is introduced. There, a characterization of the hydrodynamics is performed using a low temperature alloy of gallium, indium and tin, GaInSn, and, a stable regular slug-flow is established for various gas and liquid flows. The presence of a film in the slug-flow remains subject to question and the conclusions on the direction of the project are drawn towards an alternative reactor system or further hydrodynamic studies.
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