Realizing Spiral Laminar Flow Interfaces with Improved Micro Rotary Reactor
Hiroaki Furusawa, Koichi Suzumori, Takefumi Kanda, Akinori Muto, and Yusaku Sakata
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Okayama 700-8530, Japan
Research and development of micro-fluidic systems, such as μ-TAS and micro reactor system, has recently become active in the fields of chemical engineering and biotechnology. Micro mixing devices are an essential element in the realization of micro-fluidic systems. Therefore, in this research, a micro rotary reactor has been developed as a micro mixing device incorporated into micro-fluidic systems. The micro rotary reactor can form spiral laminar flow interfaces of two liquids through the rotation of a rotor. The spiral laminar flow interfaces increases the length and surface area of the reaction area between two liquids. But the previous prototype micro rotary reactor was only able to form spiral laminar flow interfaces under certain conditions. Therefore, the micro rotary reactor has been improved to form stable spiral laminar flow interfaces under a greater number of conditions. The full length and diameter of the improved micro rotary reactor are 60 mm and 15 mm, respectively. Experiments have shown that the improved micro rotary reactor can form spiral laminar flow interfaces under more varied conditions. This paper details the structure and the characteristics of the improved micro rotary reactor, as well as the experiments on its ability to form spiral laminar flow interfaces.
-  T. Kitano, S. Shoji, Y. Baba, and H. Fujita, “Technology and Application of Micro Chemical Chip,” MARUZEN CO., pp. 293-297, 2004 (in Japanese).
-  J. Ducrée, T. Brenner, T. Glatzel, and R. Zengerle, “Ultrafast micromixing by coriolis-induced multi-lamination of centrifugal flow,” Proc. of ACTUATOR 2004 9th Int. Conf. on New Actuators, pp. 533-536, 2004.
-  Y. H. Wu, P. Zhang, S. X. Li, F. Li, and Y. Bai, “Micromachined electromagnetic mixer,” Proc. of ACTUATOR 2004 9th Int. Conf. on New Actuators, pp. 561-564, 2004.
-  H. Furusawa, K. Suzumori, T. Kanda, Y. Yamada, Y. Sakata, and A. Muto, “Development of Micro Rotary Reactor Causing Spiral Laminar Flow Interfaces,” IEEJ Trans. SM, Vol.127, No.2, pp. 47-52, 2007 (in Japanese).
-  H. Okamoto, T. Ushijima, and O. Kitoh, “New methods for increasing productivity by using microreactors of planar pumping and alternating pumping types,” Chemical Engineering Journal, Vol.101, pp. 57-63, 2004.
-  A. Muto, “Development of Three Dimensional Micro Reactor Causing Slug Flow and Extraction Process Using the Reactor,” Chemical Engineering, Vol.51, No.7, pp. 1-6, 2006 (in Japanese).
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