Influence of reactor shapes on residence time distribution and methyl orange degradation efficiency in a continuous process under indirect 200 kHz sonication
Influence of reactor shapes on residence time distribution and methyl orange degradation efficiency in a continuous process under indirect 200 kHz sonication
复制标题
间接 200 kHz 超声处理下连续过程中反应器形状对停留时间分布和甲基橙降解效率的影响
DOI：
10.1021/ie402579a
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发表时间：
2013
影响因子：
4.2
通讯作者：
Kenji Okitsu
中科院分区：
文献类型：
--
作者：
Kandasamy Thangavadivela;Gary Owens;Peter J. Lesniewski;Kenji Okitsu
四种不同形状的声化学反应器（圆柱形，圆锥形，双锥和金字塔）的性能，其特征在于在三个流量（10，20，和30 mL min-1）和两个流动方向在一个连续的过程中的停留时间分布，量热能量效率和橙子降解方面。虽然反应器形状影响反应器内的超声波反射，但这不是决定反应器整体性能的主要因素。事实上，奇怪的形状导致体积更小、稀释度更高、停留时间更短，表现出更低的缓冲能力，并且难以构建和维护。在间歇和流动条件下，量热能量效率随反应器体积的增加而增加，顺序为圆柱形>金字塔形>双锥形>圆锥形。总体性能遵循类似的顺序，圆柱形>双锥形>锥形>锥形，除了双锥形反应器在分批和流动条件下与流动方向无关地略微优于锥形反应器。
The performance of four different shaped sonochemical reactors (cylindrical, conical, double cone and pyramidal) were characterized in terms of residence time distribution, calorimetric energy efficiency and methyl orange degradation under three flow rates (10, 20, and 30 mL min–1) and two flow directions in a continuous process. While reactor shape influenced reflection of ultrasound within the reactor, this was not a major factor in determining overall reactor performance. In fact, odd shapes led to lower volumes, higher dilution, shorter residence times, exhibited lower buffering capacity and were difficult to construct and maintain. The calorimetric energy efficiency increased with reactor volume in the order cylindrical > pyramidal > double cone > conical under both batch and flow conditions. The overall performance followed a similar order, cylindrical > double cone > pyramidal > conical, except that the double cone reactor slightly outperformed the pyramidal reactor under batch and flow conditions irrespective of flow direction.