Construction of a Concept for Emergent Synthesis of Complex Chemical Processes

第一年的目的是研究复杂化学过程偏离稳态的不稳定性及其化学振荡的分叉。第二年的目的是研究动态操作对化学振荡的稳定作用。从涌现综合的观点出发，研究了混合场的设计方法。混合对Belousov-Zhabotinskii反应分叉特性的影响：即使在CSTR在很高的旋转数下搅拌良好的条件下，仍然可以发现反应器体积的影响，这在放大设计时应该考虑在内。乙酸乙烯连续乳液聚合中的自持振荡及动态操作的影响：在乳化剂浓度低于CMC的条件下，不仅单体转化率出现自持振荡，而且粒径分布也出现自持振荡。通过在大于和小于临界值的两个值之间周期性地切换平均停留时间的动态操作，使这些振荡得到规律化。用本构方法对简单流动系统的非线性动力学数据进行综合，证明了设计超高粘度流体混合场的应急综合方法是可能的。

The first year purpose was to investigate the instabilities deviating from a steady state of complex chemical processes and their bifurcation of chemical oscillations. The second year purpose was to investigate the stabilization of chemical oscillations by dynamic operations. The methodology for designing a mixing field was also studied from a viewpoint of emergent synthesis.1. Effect of Mixing on Bifurcation Characteristies of Belousov-Zhabotinskii Reaction : Even under a condition when a CSTR was stirred well at very high rotation numbers, the effect of reactor volume, which should be taken into account on scale-up design, was still found on the bifurcation characteristies of chemical oscillations.2. Self-sustained Oscillation in Continuous Emulsion Polymerization of Vinyl Acetate and Effect of Dynamic Operations : Under a condition of emulsifier concentration below CMC, self-sustained oscillations of not only the monomer conversion but also the particle size distribution were observed. Those oscillations were regularized by means of dynamic operation periodically switching over the mean residence time between the two values, the one is larger and the other is smaller than the critical value.3. An emergent synthesis for designing mixing fields of very high viscosity fluid was confirmed to be possible if nonlinear dynamic data of simple flow systems are integrated with the aid of constitutive approach.